Careers at Five9

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. About Five9 Five9 is a leading provider of cloud software for the enterprise contact center market, bringing the power of the cloud to thousands of customers and facilitating more than three billion customer interactions annually. Since 2001, Five9 has led the cloud revolution in contact centers, helping organizations transition from legacy premise-based solutions to the cloud. Five9 provides businesses with cloud contact center software that is reliable, secure, compliant and scalable, which is designed to create exceptional customer experiences, increase agent productivity and deliver tangible business results. Role Overview To complement our rapid growth, we are actively sourcing for a Network Engineer to operate in a 24/7 Software-as-a-Service (SaaS) environment maintaining IP Networking components in a production setting. In this role you will: Design, engineer, and oversee highly scalable CI/CD pipelines for automated testing, digital-twin dry-running, and zero-downtime deployment of configurations across massive physical and virtual network fabrics. Champion the "Network-as-Code" paradigm, establishing enterprise-wide GitOps workflows and enforcing source control (Git) as the absolute single source of truth for all network state, policy, and infrastructure design. Drive the strategic vision for network automation, designing complex, reusable code frameworks and Playbooks to permanently eliminate manual configuration and operational "toil" at a global scale. Design and optimize massive-scale software-defined networks (SDN) and container networking interfaces (CNIs) supporting ultra-high-throughput, multi-region cloud and bare-metal environments. Serve as the ultimate technical authority (SME / Tier 4) for complex network, routing, and overlay issues, rapidly deciphering and resolving the most difficult challenges across physical underlays and software-defined layers. Design and implement next-generation telemetry, monitoring, and alerting-as-code platforms, leveraging advanced heuristics for proactive auto-remediation of performance, security, and capacity issues. Key Responsibilities Partner at a strategic level with Enterprise Designers, SRE leaders, and Platform teams to build and implement highly resilient, secure, and multi-tenant-isolated network infrastructure. Establish coding standards and write/review sophisticated Infrastructure-as-Code (IaC) using Ansible, Terraform, Helm, Python, and Bash. Lead the engineering, deployment, and optimization of modern overlay and container networking solutions, particularly VXLAN, OVN (Open Virtual Network), and Project Calico. Design the automation of complex security and traffic management policies across enterprise-grade firewalls (Palo Alto/Fortinet) and load balancers (F5 BIG-IP/Cloudflare/Octavia). Embed "Security-as-Code" directly into CI/CD pipelines, engineering automated validation gates for security groups, ACLs, and firewall rules prior to production pushes. Engineer robust, automated network validation suites to continuously verify network health, state, and complex routing tables (BGP, OSPF) pre- and post-deployment. Drive the adoption of code-based infrastructure definitions and dynamic, living technical documentation (e.g., NetBox, Git Markdown), setting the standard for documentation across the engineering organization. Qualifications & Skills 8+ years of progressive experience in Network Engineering, DevOps, or SRE roles, with a deeply established focus on large-scale network design, automation, and Infrastructure-as-Code (IaC). Expert-level proficiency in engineering complex network automation tooling utilizing Ansible, Terraform, and Python (including deep experience with network-specific libraries like Netmiko, Nornir, or NAPALM). Deep design and operational expertise with massive-scale software-defined networks (SDN) and overlays, specifically VXLAN, OVN, and Project Calico. Advanced mastery of Kubernetes networking designs (CNIs, Ingress controllers, Service Mesh, Kube-Proxy behaviors) at an enterprise scale. Extensive, expert-level experience engineering and automating enterprise edge, routing, and security fabrics, including Cisco Nexus (9k/7k/5k/2k), Arista, Versa SD-WAN, and firewalls (Palo Alto and Fortinet). Authoritative knowledge of API-driven application delivery and load balancing across monolithic and cloud-native stacks (e.g., F5 BIG-IP AS3, Cloudflare APIs, Octavia LBaaS). Deep Linux internals and networking expertise, including advanced knowledge of Linux network namespaces, virtual interfaces, eBPF/iptables, and kernel-level routing. CCIE-level (or equivalent) mastery of core routing protocols (BGP, OSPF, MPLS, EVPN) and a comprehensive understanding of how virtual/container overlay networks map to physical underlays. Extensive experience designing and scaling CI/CD platforms (e.g., GitLab CI, Jenkins, GitHub Actions) and implementing test-driven development (TDD) for infrastructure changes. Unparalleled troubleshooting capabilities utilizing advanced packet analysis (tcpdump/Wireshark), NetFlow, and log aggregation platforms to trace asymmetric routing and microburst traffic across hybrid fabrics. Proven track record of technical leadership, including mentoring mid-level engineers, leading design review boards, and driving cross-functional engineering initiatives. Deep telecommunications background, specifically VoIP, RTP, SIP peering/trunking, and Session Border Controllers (SBC), is highly advantageous. Exceptional verbal and written communication skills, with the ability to translate complex technical concepts to executive stakeholders while fostering a collaborative, DevOps-oriented engineering culture. Diversity & Inclusion Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. This role is hybrid and requires 3 days a week in office . Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. Role Overview To complement our rapid growth, we are actively sourcing for a Network Engineer to operate in a 24/7 Software-as-a-Service (SaaS) environment maintaining IP Networking components in a production setting. In this role you will: Design, engineer, and oversee highly scalable CI/CD pipelines for automated testing, digital-twin dry-running, and zero-downtime deployment of configurations across massive physical and virtual network fabrics. Champion the "Network-as-Code" paradigm, establishing enterprise-wide GitOps workflows and enforcing source control (Git) as the absolute single source of truth for all network state, policy, and infrastructure design. Drive the strategic vision for network automation, designing complex, reusable code frameworks and Playbooks to permanently eliminate manual configuration and operational "toil" at a global scale. Design and optimize massive-scale software-defined networks (SDN) and container networking interfaces (CNIs) supporting ultra-high-throughput, multi-region cloud and bare-metal environments. Serve as the ultimate technical authority (SME / Tier 4) for complex network, routing, and overlay issues, rapidly deciphering and resolving the most difficult challenges across physical underlays and software-defined layers. Design and implement next-generation telemetry, monitoring, and alerting-as-code platforms, leveraging advanced heuristics for proactive auto-remediation of performance, security, and capacity issues. Key Responsibilities Partner at a strategic level with Enterprise Designers, SRE leaders, and Platform teams to build and implement highly resilient, secure, and multi-tenant-isolated network infrastructure. Establish coding standards and write/review sophisticated Infrastructure-as-Code (IaC) using Ansible, Terraform, Helm, Python, and Bash. Lead the engineering, deployment, and optimization of modern overlay and container networking solutions, particularly VXLAN, OVN (Open Virtual Network), and Project Calico. Design the automation of complex security and traffic management policies across enterprise-grade firewalls (Palo Alto/Fortinet) and load balancers (F5 BIG-IP/Cloudflare/Octavia). Embed "Security-as-Code" directly into CI/CD pipelines, engineering automated validation gates for security groups, ACLs, and firewall rules prior to production pushes. Engineer robust, automated network validation suites to continuously verify network health, state, and complex routing tables (BGP, OSPF) pre- and post-deployment. Drive the adoption of code-based infrastructure definitions and dynamic, living technical documentation (e.g., NetBox, Git Markdown), setting the standard for documentation across the engineering organization. Qualifications & Skills 8+ years of progressive experience in Network Engineering, DevOps, or SRE roles, with a deeply established focus on large-scale network design, automation, and Infrastructure-as-Code (IaC). Expert-level proficiency in engineering complex network automation tooling utilizing Ansible, Terraform, and Python (including deep experience with network-specific libraries like Netmiko, Nornir, or NAPALM). Deep design and operational expertise with massive-scale software-defined networks (SDN) and overlays, specifically VXLAN, OVN, and Project Calico. Advanced mastery of Kubernetes networking designs (CNIs, Ingress controllers, Service Mesh, Kube-Proxy behaviors) at an enterprise scale. Extensive, expert-level experience engineering and automating enterprise edge, routing, and security fabrics, including Cisco Nexus (9k/7k/5k/2k), Arista, Versa SD-WAN, and firewalls (Palo Alto and Fortinet). Authoritative knowledge of API-driven application delivery and load balancing across monolithic and cloud-native stacks (e.g., F5 BIG-IP AS3, Cloudflare APIs, Octavia LBaaS). Deep Linux internals and networking expertise, including advanced knowledge of Linux network namespaces, virtual interfaces, eBPF/iptables, and kernel-level routing. CCIE-level (or equivalent) mastery of core routing protocols (BGP, OSPF, MPLS, EVPN) and a comprehensive understanding of how virtual/container overlay networks map to physical underlays. Extensive experience designing and scaling CI/CD platforms (e.g., GitLab CI, Jenkins, GitHub Actions) and implementing test-driven development (TDD) for infrastructure changes. Unparalleled troubleshooting capabilities utilizing advanced packet analysis (tcpdump/Wireshark), NetFlow, and log aggregation platforms to trace asymmetric routing and microburst traffic across hybrid fabrics. Proven track record of technical leadership, including mentoring mid-level engineers, leading design review boards, and driving cross-functional engineering initiatives. Deep telecommunications background, specifically VoIP, RTP, SIP peering/trunking, and Session Border Controllers (SBC), is highly advantageous. Exceptional verbal and written communication skills, with the ability to translate complex technical concepts to executive stakeholders while fostering a collaborative, DevOps-oriented engineering culture. Diversity & Inclusion Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. This role is hybrid and requires 3 days a week in office . Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. The Company Join us in bringing joy to customer experience. Five9 is a leading provider of AI-enabled cloud contact center software. We are a publicly traded US company, generating over a billion US dollars a year in revenues. In our last earnings call, we reported that AI is now 11% of our enterprise subscription revenues, making us one of the largest vendors of enterprise AI for customer experience. If AI is the hot technology right now, and AI Agents are the hottest area of that technology, and Customer Experience (CX) is the most important application of AI Agents, Five9 is sitting at the pinnacle of the most innovative area of technology we’ve seen in twenty years. The Mission Our vision is nothing less than to reimagine the experience of connection between end users and the brands which serve them. We are doing so by reimagining the contact center software stack using AI Agents. Our AI agents will offer self-service which delights and accomplishes tasks at super-human speeds, while also blending in live human agents for the many cases when a human touch is needed. Our AI agents will assist the live agents too, and help supervisors and managers get the most out of their mix of human and AI labor. Our AI Agents will analyze troves of conversations, extracting insights and data that provide actionable guidance on how brands can reduce costs while improving CX. We believe in the power of AI and humans combined. The Culture Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic self. The team This role sits within our AI Product Engineering team. This team is the fastest growing organization with Five9. It is responsible for the software development, operations ultimately success for our suite of AI products. These include our self-service solutions (voice bots, chat bots, and AI Agents), our agent assistance applications, and our analytics tools. The team is geographically dispersed around the world, with centers of excellence in US (distributed, though many in the San Francisco east bay area), Melbourne Australia, Porto, Portugal, and Chennai and Bengaluru in India. The team doesn’t build frontier models. Rather, it integrates such models – using the latest and greatest from vendors like OpenAI and Google - to provide end-to-end solutions focused on customer experience. Job Description The Senior Engineering Manager, AI Agents will lead the development and delivery of Five9’s AI Agent software platform, which provides customers with fully autonomous self-service agents for customer support, sales, and services use cases in the contact center. This is one of the hottest areas of application for AI Agent technology! This role is responsible for building and managing a high-performing engineering team that develops scalable, reliable, and production-grade AI-powered systems used in real-time customer conversations. You will be responsible for hiring and developing engineers, improving engineering processes, and enabling strong execution across the software development lifecycle. While this is a management role rather than an individual contributor position, the ideal candidate will bring strong technical credibility with engineers and guide architecture discussions, technical decisions, and engineering best practices. You will collaborate closely with Product, SRE, Support, and other engineering teams to deliver an enterprise-grade platform while fostering a culture of operational excellence, ownership, and customer empathy. You will make use of AI coding assistants, specifically Claude Code, to produce code as well as work with the team using these tools. Required Experience: 1+ years of Experience in software development for GenAI platforms for Customer Support/Customer Experience is REQUIRED 5+ years of software development experience, ideally in Java 5+ years of experience in enterprise SaaS software development 10+ years of software development experience Bachelors or advanced degree in computer science, computer engineering or similar Experience using Claude Code for software development Technical Skills Core Software Engineering Expert-level proficiency in Java and JVM-based frameworks. Nice to Have: Spring Boot, Strong understanding of object-oriented design , design patterns, clean code, refactoring, and code quality best practices. Deep experience designing and building distributed, event-driven systems with high reliability and low latency. Expertise in API design (REST/gRPC), service contracts, and backward-compatible evolution. AI Agent / GenAI Platform Engineering 1+ years Strong familiarity with LLMs , prompt orchestration, function calling, and multi-agent reasoning workflows. Experience building AI-enabled microservices , including integrating LLM providers, embeddings, vector databases, RAG pipelines, and structured output validation. Solid understanding of model latency, throughput, caching strategies, eval frameworks , and ML-specific observability. Experience using one or more frontier models from OpenAI, Google, or open source Cloud & Infrastructure (GCP Preferred) 5+ years experience in building enterprise SaaS software Expertise with public cloud software development platforms, AWS, GCP or Azure. Preference for GCP experience (Five9 is on GCP) Strong familiarity with networking fundamentals: HTTP/2/3, gRPC, load balancing, API gateways, service meshes. AI Coding Assistance (Claude Code) Experience creating production code using coding assistants, preferably Claude Code Operational Excellence Strong command of SRE principles : SLIs/SLOs, error budgets, incident response, root cause analysis. On-call experience, including incident handling, troubleshooting, and service remediation Experience designing systems for observability : tracing, logging, metrics, profiling Knowledge of performance optimization—CPU, memory, threading, concurrency, GC tuning. Hands-on experience running 24×7 global enterprise SaaS systems in production. Security & Compliance Awareness Familiarity with authentication/authorization technologies (OAuth2/OIDC, JWT, mTLS). Understanding of secure coding practices, data protection, and enterprise SaaS compliance needs (SOC2, GDPR, HIPAA). Architectural & Design Skills Ability to drive end-to-end architecture for complex platforms, from requirements → design → implementation → deployment. Skilled at creating architecture docs, ADRs, technical deep-dives , and communicating trade-offs clearly. Strong understanding of eventing, CQRS, streaming, pub/sub, state machines , and distributed consensus patterns. Experience in using AI to accelerate software development, using tools like Claude Code or Microsoft CoPilot Cross-Functional & Leadership Skills Ability to mentor and elevate teams—code reviews, design guidance, pairing, coaching junior engineers. Strong communication skills; capable of explaining technical decisions to: Engineering leadership Product & UX Support, SRE, QA, and Solutions Engineering Demonstrated ability to collaborate across orgs to deliver complete, integrated product experiences . Strategic & Execution Skills Ability to set technical direction for the platform and influence roadmaps. Ownership mentality across the entire SDLC—design → implementation → CI/CD → monitoring → production operations. Exceptional judgment in balancing innovation vs reliability , short-term velocity vs long-term maintainability . Ability to decompose large initiatives into deliverable components, driving execution with high accountability. This role is hybrid and requires 3 days a week in office . Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. Senior Software Engineer in AI - Front End React/Redux, Java Five9 is a leading provider of cloud software for the enterprise contact center market, bringing the power of the cloud to thousands of customers and facilitating more than three billion customer interactions annually. Five9 has led the cloud revolution in contact centers, helping organizations transition from legacy premise-based solutions to the cloud. The cloud contact center market has become the hot space for innovation in real-time communications, and is the tip of the spear for the application of Artificial Intelligence. Five9 has led the charge with its Genius AI platform. Five9 offers a high-energy environment with lots of room for personal and professional growth. Our innovative AI team is seeking a talented and experienced Senior Full Stack Software Engineer to join our Voice of Customer (VOC) team. AI experience is required for this role - you will work hands-on with AI technologies from vendors like Azure, OpenAI, Google, Databricks, IBM, and Amazon, and continue to build on some of the hottest skills on the market. An ideal candidate for us is an experienced engineer who is passionate about building high performance web platforms and applications, a brilliant problem solver and a creative self-starter. Voice of Customer (VOC) is Five9’s AI-powered customer insights product. Every day, contact centers handle enormous volumes of voice and chat conversations that hold the clearest signal about what customers actually want - and almost none of it gets read. VOC applies AI to those conversations at scale to surface why customers are reaching out, how those reasons cluster and shift over time, and where the business should act. The result is a set of insights and analytics that CX and operations leaders use to make decisions, with the ability to trace any insight back to the conversations behind it. Key Responsibilities: Implement UX designs by working with UX Designers on a day-to-day basis, using React/Redux based framework. Build the customer-facing insights experience for VOC - interactive dashboards, charts, and drill-down views over AI-generated insights. Be part of an agile team to develop a scalable, highly available application platform using modern PaaS platforms such as GCP. Participate and contribute to requirements analysis and grooming. Understand how to leverage PaaS components, such as CDN, noSQL databases when developing software in order to achieve scalability, reliability, and operability. Ability to build custom widgets for dashboards developed using Google Looker Studio plugins is a plus, but not required. Document and communicate clearly architecture and implementation solutions. Have ownership of your code in production, including on-call, troubleshooting. Key Skills: 5+ years software development experience (mandatory). React/Redux focus. Highly proficient in JavaScript and Java. Hands-on experience building AI-powered product interfaces - presenting model output to users and supporting human review and correction of it. Experience building data-heavy or analytics interfaces - charts, dashboards, filtering, and large result sets. Experience with PaaS hosted relational and no-SQL databases. Desirable, but not required, experience with custom widget development using Google Looker Studio. Experience in operational code ownership - on-call, troubleshooting, uptime. Experience in applying modern UI design patterns and separating concerns in a distributed system. Familiarity with vibe coding using different AI tools like Claude Code. Must have experience working within an Agile/Scrum team. Positive, self-motivated and enthusiastic attitude with a strong sense of ownership. Strong pro-active communication skills, both verbal and written. AI skills in speech recognition and natural language processing are a plus but not required. Experience in contact center software is a plus but not required. This role is hybrid and requires 3 days a week in office . Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. As part of the Cloud Platform Engineering team, you will be building Five9’s Modern SaaS platform. An ideal candidate for us is an experienced engineer who is passionate about building high performance cloud platforms with automation first mindset and a brilliant problem solver and a creative self-starter. Key Responsibilities: Be part of Cloud Platform Infrastructure Team, focused on building hybrid-cloud solutions. Build automation capabilities towards common abstractions, tools, automation for CI/CD and progressive delivery of Cloud Native applications. Enable all Five9 development teams with Cloud Native developer workflow, conduct developer training and toolset to automate software delivery with a focus on Scale, HA. Design, and build secure, highly scalable, enterprise grade platform Tools. Document and communicate clearly of architecture and implementation solutions. Work closely with product managers, architects, testers, and development teams. Troubleshoot and support current Cloud platform in production. Key Qualifications: 7+ years of professional DevOps / production operations experience. 5+ years of Cloud Native application delivery experience. Strong Hands-on experience with CI/CD tools like GitLab, GitHub, Jenkins, etc., Intimate knowledge of public cloud infrastructures (GCP - Preferred, AWS, Azure). Hands-on experience working on core Cloud services – Kubernetes, Compute, Storage, Network, Virtualization, Identity and Access Management (IAM). Expert level in Current technology Stack Helm, K8S, Istio, GCP, AWS, GKE, EKS, Terraform, SRE/DevOps practices or equivalent. Strong proven experience in Infrastructure as Code (IaC), to be responsible for building robust platforms using automation. Experience building automation and deploying high quality software with test frameworks and CI/CD, Progressive Delivery. Strong development experience in one or more programming languages - Python, Terraform, Golang, Java, etc. Advanced knowledge of Linux based systems and runtimes. DevOps mindset and familiarity with the concept of Site Reliability Engineering – inherent sense of ownership through the development and deployment lifecycle. You understand what it takes to run mission critical software in production. Ability to prioritize tasks, work independently and work collaboratively in an agile environment. Workplace location: This role is fully remote for candidates who reside outside Porto, Maia, Matosinhos, Gondomar, Valongo e Vila Nova de Gaia. Candidates who reside within those municipalities would be required to work in-office 3 days a week. Benefits: Five9 Shares Bonus Scheme 10% Flex Benefit Meal Allowance Medical Insurance Life Insurance 25 day Annual Leave + Public Holidays Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. To complement our rapid growth, we are actively looking for a Software Engineer – Data Platform with experience working on Google Cloud Platform, to join our team. Five9 delivers market-leading up-time for its Contact Center application while constantly delivering new features and capabilities to highly demanding enterprise customers. This requires that Five9 continually enhances, updates and modernizes the Platform Services that the Contact Center Application runs on. This position requires excellent understanding of cloud software: how it's built, deployed, tested and managed. Key Responsibilities: Contribute to the next generation of Five9’s modern SaaS platform and applications, providing businesses the ability to improve customer service through the power of AI in the Contact Center. You will play a critical role in developing a highly-available, highly-scalable and reliable infrastructure for microservices. You will apply your expertise of cloud computing stack, broad software technologies, and open source tools to resolve what are often considered seemingly unsolvable cloud technology platform challenges for our customers. Gain deep application-level knowledge of existing systems as well as contributing to their overall design. Dive deep into the software stack to troubleshoot and provide production support as needed. Work with a team of peers, share a passion for what they’re creating and pull your own weight. Requirements: 3+ years of software development experience as part of a Java development team using Spring Boot. 1+ years with Cloud Platform (AWS, Azure, GCP as plus) and Spring Cloud. Experience with designing and building highly available and scalable applications in GCP. Experience and hands on skills with GCP Products such as Google Big Query, Cloud Storage, Cloud Functions, Pub/Sub, App Engine, Cloud SQL. Experience and hands on skills with Docker, Kubernetes. Hands on experience working as part of a Continuous Delivery team who continuously develop, test, deploy and manage production applications on Google Cloud Platform. Good understanding of private and public cloud design considerations and limitations in the areas of virtualization and global infrastructure, distributed systems, load balancing and networking, event processing, massive data storage and security. Bachelor's degree in an engineering field. An advanced degree in an engineering or a business discipline is highly desirable. Workplace location: This role is fully remote for candidates who reside outside Porto, Maia, Matosinhos, Gondomar, Valongo e Vila Nova de Gaia. Candidates who reside within those municipalities would be required to work in-office 3 days a week. Benefits: Five9 Shares Bonus Scheme 10% Flexi Benefit Meal Allowance Medical Insurance Life Insurance 25 day Annual Leave + Public Holidays Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. We are seeking a highly experienced Senior DevOps Engineer – Storage Platforms to build, automate and operate large-scale Software Defined Storage (SDS) and Kubernetes platforms in a private cloud environment. This role focuses on Storage Engineering with Infrastructure-as-Code and GitOps practices while ensuring scalability, resilience, and performance . This is a deeply technical role requiring expert-level understanding of Software Defined Storage, Kubernetes and extensive working knowledge on Linux Operating systems. You will also collaborate with platform and SRE teams to maintain secure, performant, and multi-tenant-isolated services that serve high-throughput, mission-critical applications. Key Responsibilities Deploy, automate, and operate large-scale Software Defined Storage architectures across private and public cloud regions within ITIL methodology. Deploy and support enterprise storage platforms (Pure Storage, HPE, NetApp) and SDS solutions (Ceph, Longhorn). Integrate self-service storage workflows for Kubernetes CSI and OpenStack consumers (VM and Baremetal). Implement and manage backup solutions (preferably Rubik). Build and maintain Infrastructure-as-Code for storage platforms using Ansible, Terraform, Helm and Git, with Python/Bash automation. Implement CI/CD pipelines for infrastructure updates, patching, upgrades, testing, and rollback. Implement and improve monitoring, alerting, and observability for storage systems (capacity, latency, IOPS, recovery health) using GitOps and tools such as Prometheus, Loki, and Grafana. Perform deep troubleshooting across storage, Kubernetes, hypervisors, networking, and Linux systems . Develop and maintain technical documentation , architecture diagrams, operational procedures, and runbooks Participate in on-call rotations , incident response, and root cause analysis. Collaborate globally on change management , documentation, and operational best practices. Minimum Qualifications 6+ years of experience managing enterprise storage and Kubernetes platforms on Linux. Strong hands-on experience with SDS solutions (Ceph, Longhorn) and storage migrations from legacy systems. Expertise with block, file, and object storage , including Fibre Channel (Cisco MDS) and IP-based protocols (NVMe-oF or iSCSI farbics). Expert knowledge of Kubernetes and Linux systems (Ubuntu, RHEL/CentOS). Proficiency with Infrastructure-as-Code (IaC) (Ansible, Terraform) for provisioning storage and backup schedules Expertise in backup technologies (preferably Rubik) Strong scripting skills in Python and Bash (Golang (GO) a plus). Experience operating 24x7 mission-critical production environments . Hands-on experience with KVM hypervisors (Suse Harvester, OpenStack) . Strong written and verbal communication skills. Proficiency with Git, CI/CD pipelines, and automated testing frameworks Ability to write technical documentation and contribute to community wikis or knowledge bases. Bachelor’s degree in computer science or equivalent professional experience. Preferred Qualifications OpenStack Cinder multi-backend administration. Backup platforms (Rubrik). Understanding of CIS/NIST security and infrastructure lifecycle management. ITIL Foundation/advanced certifications in support of ITSM standard methodology. Background in telco, edge cloud, or large enterprise environments. CNCF Certified Kubernetes Administrator (CKA), Certified Kubernetes Security Specialist (CKS) or Red Hat specialist in Ceph Storage Administrator (EX125) certifications. Master’s degree in computer science, IT, Engineering, or a related field preferred; equivalent experience and relevant industry certifications will also be considered. What You’ll Get A collaborative team that’s deeply invested in infrastructure excellence. Complex technical challenges that require creative, scalable solutions. The opportunity to shape a next-generation private cloud platform-built reliability. Access to the latest tools, frameworks, and upstream project developments. Skills and Attributes: Analytical Thinking & Problem Solving: Demonstrated ability to translate complex, cross-domain requirements into scalable and resilient cloud infrastructure and automation solutions. Collaboration & Teamwork: Strong interpersonal and communication skills with a proven track record of effective collaboration across multidisciplinary teams, including developers, operations, security, and product stakeholders. Mentorship & Leadership: Passionate about knowledge-sharing and mentorship, with experience guiding junior engineers and fostering a team culture of continuous learning, innovation, and technical excellence in cloud engineering and DevOps practices. Work Location: This role is fully remote for candidates who reside outside the 30 mile radius of one of our offices. For candidates who reside within a 30 mile radius of one of our offices, this role is Hybrid and would require 3 days a week (T, W, TH) in office. As part of our continued commitment to diversity, equity, and inclusion, Five9 supports pay transparency during the entire recruitment process. Actual compensation packages are based on several factors that are unique to each candidate including, but not limited to: skill set, depth of experience, certifications, and specific work location. The range displayed reflects the minimum and maximum target for new hire salaries for the job across the United States. Your recruiter can share more about the specific compensation package during your hiring process. Additionally, the total compensation package for this position may also include an annual performance bonus, stock, and/or other applicable incentive compensation plans. Our total reward package also includes: Health, dental, and vision coverage, beginning on the first day of employment. Five9 covers 100% of the employee portion of the health, dental and vision coverage and shares a high portion of the dependent cost. We also offer Short & Long-Term Disability, Basic Life Insurance, and a 401k saving plan with employer matching. Access to an innovative mental health support platform that offers personalized care and resources in areas such as: therapy, coaching and self-guided mindfulness exercises for all covered employees and their covered dependents. Generous employee stock purchase plan. Paid Time Off, Company paid holidays, paid volunteer hours and 12 weeks paid parental leave. All compensation and benefits are subject to the requirements and restrictions set forth in the applicable plan documents and any written agreements between the parties. The US base salary range for this role is below. $90,700 — $252,200 USD Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. We are seeking a skilled DocuSign CLM Administrator and Workflow Developer to join our Business Technology team. This role is responsible for administering, configuring, and maintaining the DocuSign CLM platform, including users, permissions, templates, workflows, metadata, and repositories, and for building and maintaining the commercial document templates and workflows used to generate, route, negotiate, and execute Five9’s customer agreements. The ideal candidate has at least three years of business systems administration experience, including at least two years of hands-on DocuSign CLM administration, and holds a Certified DocuSign CLM Administrator credential, with a Certified DocuSign CLM Workflow Developer credential strongly preferred. The position is a hybrid role combining in-office and work-from-home days, based in Chennai or Bengaluru, India, and requires regular overlap with United States business hours, including work until approximately 11:30 PM India Standard Time when needed. Key Responsibilities • Administer, configure, and maintain the DocuSign CLM platform, including users, permissions, templates, workflows, metadata, and repositories. • Create and maintain commercial document templates — including Master Services Agreements, service orders, order forms, amendments, and renewals — using legal language and clauses approved by the Legal team. • Develop and maintain DocuSign CLM workflows for document generation, review, approval, negotiation, signature, storage, amendments, and renewals. • Configure conditional content and clause selection based on product, pricing, transaction type, and geography. • Support the generation of service orders and commercial documents from Salesforce CPQ quotes and quote line information, and maintain related field mappings between Salesforce CPQ, DocuSign CLM, and DocuSign eSignature. • Partner with Legal, Deal Desk, Sales Operations, Finance, and other stakeholders to translate business and legal requirements into scalable templates and workflows. The New CX Starts Here • Troubleshoot document generation, workflow, data mapping, and electronic signature issues, and drive them to resolution. • Identify opportunities to simplify contract processes, reduce manual effort, and accelerate contract execution. • Participate in moderately complex CLM enhancements and projects, working independently with guidance on broader architectural or strategic decisions. Key Requirements Required Qualifications: • Minimum three years of business systems administration experience, including at least two years of hands-on DocuSign CLM administration. • Bachelor’s degree in Information Technology, Computer Science, or a related field, or equivalent practical experience. • Certified DocuSign CLM Administrator credential required; Certified DocuSign CLM Workflow Developer credential strongly preferred, given the role’s focus on building and modifying approval and document workflows. • Experience configuring and supporting a production DocuSign CLM implementation, including users, permissions, security, repositories, and metadata. • Hands-on experience building DocuSign CLM workflows, including approval routing, conditional steps, notifications, escalations, and exception handling. • Experience building and maintaining commercial document templates (e.g., Master Services Agreements, service orders, order forms, amendments, renewals) and clause libraries using legal language approved by the Legal team. • Experience supporting Salesforce CPQ generated quotes and commercial documents, including familiarity with the underlying Salesforce data (Account, Opportunity, Quote, Quote Line, Product, Contract). • Experience maintaining integrations and field mappings between Salesforce CPQ, DocuSign CLM, and DocuSign eSignature, and ensuring contract status and executed agreements are accurately returned to Salesforce. • Working knowledge of DocuSign eSignature, including envelope templates, recipients, signing order, and authentication. • Basic Salesforce administrator-level knowledge (objects, fields, relationships, and permission sets) and familiarity with the Salesforce CPQ data model and document generation process. • Working knowledge of XML, JSON, HTML, basic JavaScript, REST APIs, and SQL. The New CX Starts Here • Proficiency with Microsoft Word template formatting, including tables, styles, sections, headers, and conditional content. • Strong analytical, troubleshooting, and communication skills, with the ability to work independently across Legal, Deal Desk, Sales Operations, Finance, and IT, and across a distributed, global team. Preferred Qualifications: • DocuSign eSignature Administrator or Salesforce Certified Administrator certification is a plus. • DocuSign CLM Implementation Consultant or Technical Consultant certification is a plus, particularly for candidates building more complex integrations or performing solution architecture. Why You’ll Love This Role: • You will play a central role in shaping how Five9 generates, negotiates, and executes customer contracts at scale. • You will partner closely with Legal, Deal Desk, Sales Operations, and Finance, gaining broad visibility into the commercial contracting process. • You will work at the intersection of Salesforce, Salesforce CPQ, DocuSign CLM, and DocuSign eSignature, solving practical, cross-system problems that directly impact deal velocity. • If you enjoy simplifying complex processes and building reliable, well-documented systems, this role offers strong opportunities to grow your CLM and business systems expertise. This role is hybrid and requires 3 days a week in office . Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. Five9 has led the cloud revolution in contact centers, helping organisations transition from legacy premise-based solutions to the cloud. The cloud contact center market has become the hot space for innovation in real-time communications, and is the tip of the spear for the application of Artificial Intelligence, especially Generative AI and Large Language Models (LLM). Our innovative AI team is responsible for developing a suite of leading edge AI products built upon industry-leading AI tech from vendors like OpenAI, Google, and Amazon. These products include enterprise voice and chatbots (think: ChatGPT for businesses), agent assistance, and conversation analytics. This team - the fastest growing at Five9 - is seeking a talented and experienced Senior Front End React/Redux Software Engineer. In this role, you will be part of the team that builds software that brings AI technologies to users. Prior AI experience is not required - you will receive on-the-job experience for some of the hottest skills on the market. An ideal candidate for us is an experienced engineer who is passionate about building high performance web platforms and applications, a brilliant problem solver and a creative self-starter. Key Responsibilities: Implement UX designs by working with UX Designers on a day-to-day basis, using React/Redux based framework. Build custom widgets for dashboards developed using Google Looker Studio plugins. Be part of an agile team to develop a scalable, highly available application platform using modern PaaS platforms such as GCP. Participate and contribute to requirements analysis and grooming. Understand how to leverage PaaS components, such as CDN, noSQL databases when developing software in order to achieve scalability, reliability, and operability. Document and communicate clearly architecture and implementation solutions. Have ownership of your code in production, including on-call, troubleshooting. Key Skills: 5+ years software development experience. React/Redux focus. Highly proficient in JavaScript and TypeScript. Experience in operational code ownership – on-call, troubleshooting, uptime Experience in applying modern UI design patterns and separating concerns in a distributed system. Must have experience working within an Agile/Scrum team. Positive, self-motivated and enthusiastic attitude with a strong sense of ownership. Strong pro-active communication skills, both verbal and written. Experience in contact center software is a plus but not required. Experience with custom widget development using Google Looker Studio is a plus but not required. Workplace location: This role is fully remote for candidates who reside outside Porto, Maia, Matosinhos, Gondomar, Valongo e Vila Nova de Gaia. Candidates who reside within those municipalities would be required to work in-office 3 days a week. Benefits: Five9 Shares Bonus Scheme 10% Flexi Benefit Meal Allowance Medical Insurance Life Insurance 25 day Annual Leave + Public Holidays Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. As a Senior Software Engineer on the Cortex Management Team, you will design, develop, and maintain backend software solutions supporting Five9’s AI initiatives. This role focuses on building scalable, reliable, and high performance backend systems that power end to end platform capabilities. You will be responsible for backend architecture, service design, implementation, testing, and documentation. Working closely with product owners and key stakeholders, you will translate requirements into robust backend services and APIs. The role also involves deep technical exploration of emerging technologies and partnering with product teams to bring innovative ideas into production. In addition, this position plays a key role in mentoring other engineers and driving backend engineering best practices across Five9. How You Contribute • Leverage strong expertise in programming languages, frameworks, and development methodologies to solve complex backend and distributed systems challenges. • Write high quality, efficient, and maintainable backend code by following best practices and contributing to core services, APIs, and platform capabilities. • Troubleshoot and resolve complex production and architectural issues by identifying root causes and implementing scalable solutions. • Ensure development stays on track, deliverables meet milestones, and solutions align with business and platform objectives. • Collaborate closely with cross functional teams including product managers, other backend development teams, frontend engineers, and quality assurance to ensure alignment on requirements, functionality, and delivery. • Follow and contribute to engineering processes, service documentation, technical specifications, and API contracts. • Ensure that the development stays on track, milestones are met, and the project aligns with business objectives. Required Skills and Qualifications • 5+ years of industry experience in Java backend development. • Strong proficiency with server side technologies, including: o REST API design and implementation o Microservice architectures o Backend frameworks such as Spring Boot o Databases (SQL, NoSQL, Redis) • Hands on experience designing and implementing scalable, high performance microservices that expose REST APIs. • Experience solving complex problems that span multiple services, products, or distributed systems. • Solid understanding of security best practices and the ability to implement measures to protect applications and data. • Ability to work both independently and as part of a collaborative engineering team. • Strong commitment to delivering high quality, performant, and scalable backend solutions on time and within scope. • Proven ability to mentor other developers through direct guidance and code reviews. • Bachelor’s degree (or equivalent) in a relevant discipline. Desirable Qualifications • Experience with Google Cloud Platform (GCP), Kubernetes, Build tools (Gradle preferred) and CI/CD pipelines (Gitlab preferred) • Experience with Event Driven messaging systems • Experience with Contact Centre technologies, including IVR, Virtual Agents, VoIP, and telecommunications service providers. • Experience with AI Development Tools (Claude preferred) Key stakeholders • Service owners and their teams • Technical leadership and senior management • Engineering teams This role is hybrid and requires 3 days a week in office . Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer. Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at accommodations@five9.com to request an accommodation. Requests will be handled confidentially and in accordance with applicable law. View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal . Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.