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. Team The Devops Engineer would be an active member within the Voice Application Services team, responsible for providing automation and test support for the SW releases of Five9. Key Responsibilities Design, implement, and maintain infrastructure as code using tools like Ansible and Terraform Build and manage scalable cloud infrastructure on AWS and GCP Develop and maintain CI/CD pipelines using platforms such as GitLab CI/CD, or similar Automate deployment, monitoring, and operational workflows across distributed systems Collaborate with Development, QA, and Operations teams to ensure seamless delivery and high system reliability Monitor system performance, troubleshoot issues, and implement solutions to improve availability and scalability Develop and maintain reusable automation modules and frameworks Identify inefficiencies in existing processes and drive improvements in automation and operational workflows Work with REST APIs and integrate services across systems and platforms Leverage AI-assisted coding tools such as Claude Code or GitHub Copilot to improve productivity and code quality Support and manage voice infrastructure components, including protocols such as SIP (Session Initiation Protocol) and RTP (Real-time Transport Protocol) Qualifications & Skills 5+ years of experience in DevOps, SRE, or infrastructure engineering roles (preferably in telecom, SaaS, or service provider environments) Hands-on experience with Ansible and Terraform, including writing and maintaining reusable modules Strong experience with cloud platforms such as AWS and GCP Proficiency in Unix/Linux systems, including CLI-based administration and shell scripting Solid understanding of CI/CD pipelines (GitLab, or similar) Demonstrated understanding of AI-assisted development tools (e.g., Claude Code, GitHub Copilot) Familiarity with voice technologies and protocols such as SIP and RTP Strong troubleshooting, debugging, and problem-solving skills Excellent written and verbal communication skills in English Ability to work effectively in distributed, cross-functional 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.

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 5+ 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. 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 5+ 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. Join the leader in cloud contact center solutions and help shape the future of Workforce Engagement! Five9 is seeking a highly technical, detail-oriented, and proactive WEM Platform Engineer / Systems Analyst to join our high-performing global operations team. In this role, you will be responsible for driving the technical readiness, configuration, and quality assurance testing of our WEM platforms. Operating as a key technical liaison, you will coordinate closely with internal Five9 teams and external vendors to facilitate seamless software deployments, migrations, and integration configurations. To excel in this role, you must possess strong technical acumen, exceptional coordination skills, and the ability to clearly articulate complex technical concepts to both technical and non-technical stakeholders. What You’ll Do As a WEM Platform Engineer, you will be accountable for the following key responsibilities: Implementation, Deployment & Migration Coordination Migration Readiness: Drive technical readiness, historical data mapping, and coordination for WEM migrations from legacy systems, partnering with implementation specialists and vendors for final execution. Release Coordination: Coordinate WEM release readiness and partner with internal Five9 release engineering teams and vendors to facilitate deployments, ensuring minimal operational disruption. Feature Enablement & Lab Testing: Own and configure advanced platform features in dedicated lab environments to perform rigorous validation and testing prior to coordinating UAT/GA promotions. Integration & Configuration Adapter Configuration & Data Import: Configure custom adapters (including Twilio, Workday, and telephony APIs) and execute historical data imports within staging environments. Data Integrity & Automation: Build and manage database mappings and establish automated daily extracts and audit reports to maintain high data quality. Support, Quality Assurance & Incident Management UAT & Defect Management: Design, write, and execute robust User Acceptance Testing (UAT) and QA protocols to identify, log, and remediate software defects prior to coordinating production releases. Collaboration, Requirements & Knowledge Leadership Cross-functional Collaboration: Represent the technical WEM operations team in weekly vendor syncs, pilot program touchpoints, and stakeholder reviews. Knowledge Leadership: Conduct regular internal knowledge-sharing sessions to the broader operations team. Author, publish, and maintain technical runbooks and standard operating procedures for adapter configurations and system resolutions. Qualifications: Education: Bachelor’s degree in Computer Science, Information Systems, or a related technical field (or equivalent work experience). Experience: A minimum of 3 years hands-on experience as a Systems Analyst, Technical Support Engineer, or Test Analyst in a Contact Center environment (CCaaS/UCaaS). WEM Expertise: Proven track record supporting or coordinating WEM platform migrations. Deep technical knowledge of Verint Cloud Services (VCS), Desktop Messaging. Verint “Badging” preferred. Technical Proficiency: Strong understanding of database structures, API integrations (e.g., Twilio, Workday), and data mapping protocols. QA & Testing: Solid background in structured software testing, test case development, and UAT execution. Incident Coordination: Demonstrated ability to troubleshoot complex technical incidents, coordinate with vendor support, and contribute to root-cause analyses. Why Join Five9 Industry leader in cloud contact center innovation, serving top global brands. Remote-first role with exposure to high-profile enterprise customers. Continuous learning with access to training, certifications, and cross-platform expertise. Collaborative, high-performance culture where your expertise directly impacts customer success. Work Location: This role is hybrid and requires 2 days a week in office. Company Benefits Company stocks Annual merit increase based on performance 15% night shift differential pay Paid Leave with Cash Conversion HMO with free dependents Retirement Plan Life Insurance While on work from home setup: Internet and meal allowance are provided Employee Assistance Program for mental and social well-being Government-mandated Benefits (SSS, PhilHealth, PagIBIG, 13 th month pay, Solo parent leave, Special leave for women) 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. Our triage pipeline is heavily AI-enriched, so analysts spend little of their day working alerts directly. The role is the work around triage: incident response, detection engineering, response automation, threat intelligence, and building the AI tooling the pipeline runs on. It is closer to a security engineering role than to a conventional SOC analyst role, and we expect you to write code. This position requires the person to work Pacific Time hours (9:00AM - 5:00PM). Responsibilities Incident response. Own incidents end to end: scoping, containment, forensics, write-up, and remediation follow-through. Detection engineering. Write, tune, test, and retire detections. Detection content is version controlled, reviewed, and measured on outcomes rather than alert volume. IR automation. Build playbooks, integrations, and workflows that remove repeated manual steps from the response process. This is a large part of the role. Threat intelligence. Track activity relevant to our environment and convert it into detections, hunts, and hardening work. Threat hunting. Be a contributor to our hypothesis-led threat hunting initiatives. AI-assisted development. Build and improve the agents, prompts, and enrichment logic behind the triage pipeline. Alert triage. A limited amount: escalations the pipeline surfaces, plus the feedback that improves it. Requirements Hands-on security operations experience, including incidents you can walk through in detail. Proficiency in at least one scripting language (Python or equivalent) and a preference for solving recurring problems with code. Working knowledge of detection logic, log pipelines, and modern telemetry sources: EDR, identity, cloud, network, and SaaS. Ability to take an ambiguous problem, define what done looks like, build it. Clear written communication: incident timelines, design notes, and postmortems. Preferred GCP and/or AWS experience, including cloud logging, IAM, and cloud-specific failure modes. Low-code automation platforms such as Tines or n8n, and judgment about when a workflow should become production code. Agent programming and prompt engineering, specifically LLM tooling reliable enough for operational use. Experience with AI-enriched detection or triage pipelines. How the team works You will be given problems rather than tickets, and you are responsible for the solution and the reasoning behind it. There is no micromanagement and minimal handholding. This suits people who self-direct and are candid when something is not working. It does not suit people who need an assigned queue. 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. $66,300 — $174,700 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. Senior Software Engineer in AI - Java Spring, backend 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 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: Be part of an agile team developing a scalable, highly available application platform using modern PaaS platforms such as GCP. Utilizing Java Spring Framework and Spring Boot for creation of highly scalable, robust microservices. Reactive programming is desirable but not required. Build and scale the backend services and data pipelines that turn large volumes of customer conversations into insights. Integrate AI and LLM services into those pipelines, and make sure the insights they produce are accurate and traceable. Understand how to leverage PaaS components, such as message buses, cloud functions (lambdas), and noSQL databases when developing software in order to achieve scalability, reliability, and operability. Participate and contribute to requirements analysis and feature grooming. 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). Highly proficient in Java - Spring Framework, Spring Boot, and REST API design. Reactive programming (rxjava or similar) is desirable but not required. Hands-on experience building AI-powered products or services, including practical LLM integration - prompt design, structured output, evaluation, and managing cost and latency. Hands-on experience designing and implementing scalable, event-driven microservices. Experience with PaaS hosted relational and no-SQL databases (mySQL, BigQuery, DataStore, Redis, etc). Experience with public cloud technologies and tools - Kubernetes, noSQL databases, message buses. Experience with large-scale data processing and analytics is a plus. Familiarity with vibe coding using different AI tools like Claude Code. Experience in developing automated test cases with modern tools such as JUnit. Experience in operational code ownership - on-call, troubleshooting, uptime. Experience in applying design patterns and separating concerns in a distributed system. Solid understanding of security best practices for protecting applications and data. 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. To complement our rapid growth, we are actively looking for a Senior Software Engineer – 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, 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 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. Required skills : 5+ years of software development experience as part of a Java development team using Spring Framework. Experience with designing and building highly available and scalable applications. 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. Desired skills: 3+ years with Cloud Platform (AWS, Azure, GCP as plus) and Spring Cloud. 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. An advanced degree in an engineering or a business discipline is highly desirable. 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. AI Engineering Manager ABOUT THE ROLE Five9 is a leading provider of cloud contact center software, bringing the power of Five9 AI and automation to organizations worldwide. The Enterprise-AI Team drives Five9's internal adoption of AI — turning emerging capability into real business outcomes across the company. The AI Engineering Manager leads the team that builds and operates Five9's internal AI solutions — the AI Automation Engineers who build solutions and automations, and the AI Platform Engineers who build and run the platform underneath them. This is a hands-on role: at least 30% of your time is spent building, reviewing, and unblocking work alongside the team, primarily in Claude — Claude Code and the Claude API / agent tooling. The rest is people leadership — managing performance, mentoring engineers, and guiding growth, while balancing delivery against the team's long-term technical health. You partner closely with the solutions architect on technical design, the program manager on roadmap and prioritization, and the enablement lead on adoption, so what the team builds ships, holds up in production, and reaches the people who need it. HOW YOU CONTRIBUTE Team leadership & people management — Lead, mentor, and develop the AI Automation and AI Platform Engineers; manage performance, run regular 1:1s, and guide career growth. Hands-on project work (30%+ of your time) — Personally build, review, and ship real project work alongside the team — solutions, automations, and platform tasks — primarily in Claude (Claude Code, the Claude API, and agent / MCP tooling). Technical excellence & standards — Drive best practices in Claude-based development, code review, and design quality; hold the team — and your own work — to the architect's standards. Delivery & roadmap execution — Partner with the program manager and business stakeholders to plan and sequence delivery; balance short-term commitments against long-term technical health. Cross-functional partnership — Work closely with the solutions architect on technical design, and with platform, security, and other engineering teams to keep the team's output integrated and secure. Quality, security & standards adherence — Ensure everything the team ships — including your own work — meets security, data-classification, and responsible-AI requirements. Coaching & growth — Support the team's professional growth through coaching, training, and knowledge-sharing; create real opportunities for skill development. Troubleshooting & unblocking — Get hands-on with complex technical problems — in Claude-driven builds and platform issues alike — and drive them to resolution. Continuous currency — Stay current on Claude and the broader AI-augmented engineering landscape so your own craft, and the team's, keep pace. SKILLS, COMPETENCIES & QUALIFICATIONS — REQUIRED Bachelor's or Master's degree in Computer Science, Engineering, or a related field. 8+ years in software or AI engineering, with 2+ years in a leadership role — including a track record of personally shipping production work, not only overseeing it. Demonstrated hands-on proficiency building with Claude — Claude Code and/or the Claude API / agent tooling — in a you-direct / AI-executes / you-verify working style. Hands-on cloud-native delivery fundamentals: Git, automated testing, CI / CD, and cloud deployment (Google Cloud preferred). Working fluency with the platform layer the team depends on: infrastructure-as-code (Terraform), containers / orchestration, and MLOps / LLMOps basics (model / agent serving, evaluation, versioning). Solid understanding of integration patterns, APIs, and data-management practices in cloud-deployed systems. Excellent communication skills, a strategic mindset, and the ability to collaborate across technical and business teams in a fast-paced environment. SKILLS, COMPETENCIES & QUALIFICATIONS — PREFERRED Experience with Google Cloud services and infrastructure-as-code / CI-CD delivery pipelines. Experience personally building AI / LLM-powered features, agents, or automations in Claude — not only directing others' builds. Contact center / CX technology exposure (Five9 or comparable). Experience partnering with product, design, or business stakeholders to shape a delivery roadmap. Prior experience standing up or scaling an engineering team's practices from an early stage. WHERE THIS ROLE SITS Primary focus: hands-on leadership of the AI engineering / builder team — At least 30% hands-on in the team's own project work — building and unblocking in Claude alongside the AI Automation Engineers and AI Platform Engineers — plus people leadership and delivery execution for both. Owns hands-on delivery, team leadership & people growth — Combines direct, in-Claude project execution with day-to-day people leadership for the builder team — coaching, performance management, and career growth. Reports to the Sr. Director; partners with the program manager — Coordinates roadmap and prioritization with the program manager; reports team outcomes up to the Sr. Director, Enterprise AI. KEY RELATIONSHIPS Direct reports: the AI Automation Engineer(s) and AI Platform Engineer(s). Reports to: Sr. Director, Enterprise AI. Key partners: the Principal AI Solutions Architect (technical design) · the AI Program Manager (roadmap and prioritization) · the AI Enablement & Learning Lead (adoption) · information security and enterprise architecture. At least 30% of this role is hands-on in the team's own Claude-based project work, not purely oversight. 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. We are looking for a Senior Information Security Engineer to join our growing Security Risk Management team. The Security Risk Management team aims to expand beyond traditional risk management; we are building an engineering driven program that designs, automates, and scales the controls, workflows, and tooling that protect Five9 and our customers. As a key contributor to the program the role supports the day-to-day execution of risk identification, assessment, treatment, and reporting across Five9's infrastructure, services, and acquisitions. You'll work directly with engineering, operations, and business stakeholders to surface security risks, drive them toward resolution, and maintain a clear picture of Five9's risk posture for leadership. Key Responsibilities: Identify, document, and assess security risks across Five9's environment, including production infrastructure, cloud services, corporate systems, and acquired platforms Maintain the Security Risk Register in Jira, ensuring risks are accurately categorized, assigned to appropriate owners, and tracked through their lifecycle Engage with service owners, engineering leads, and operations teams to establish risk ownership and drive remediation or mitigation plans Facilitate the risk acceptance process, including preparing risk acceptance documentation and coordinating approval with appropriate stakeholders Develop and deliver risk reporting for security leadership and executive audiences, including dashboards and metrics that communicate risk posture clearly Collaborate with compliance, vulnerability management, and other Information Security functions to ensure risk findings are incorporated into the broader security program Research and apply risk management frameworks and methodologies to continuously improve program maturity Contribute to the development of risk management policies, procedures, and playbooks Requirements: 3+ years of experience in information security, with at least 2 years focused on security risk management or GRC Demonstrated experience maintaining a security risk register and driving risk treatment decisions with cross-functional stakeholders Strong understanding of risk assessment methodologies (qualitative and quantitative) Familiarity with security frameworks such as NIST CSF, NIST 800-53, ISO 27001, PCI, or SOC 2 Ability to communicate security risks clearly to both technical and non-technical audiences Experience with Jira or similar tools for tracking and managing risk workflows Self-directed and comfortable engaging directly with service owners, engineers, and leadership to resolve ambiguity around risk ownership Preferred Skills : Experience with cloud environments (GCP, AWS, or Azure), particularly assessing risks related to cloud architecture and services Familiarity with vulnerability management programs and how they feed into risk management Experience supporting compliance audits or regulatory assessments (ISO 27001, SOC 2, PCI DSS) Experience building or contributing to security metrics, KPI dashboards, or executive reporting Prior work in a SaaS or contact center / communications platform environment Hands-on experience using agentic coding tools (Cursor, Claude Code, Copilot, etc.) and a working knowledge of Python Professional certification in Information Security or Risk Management (such as CISSP, CISM, CISA, CRISC, etc.) Workplace location: This role is hybrid and requires 3 days a week in our Porto office. 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. We are seeking a Staff Information Security Engineer to join Five9's Information Security team. This role will own the operationalization and ongoing maturity of Five9's Cyber Resiliency program (the practice of using tooling to continuously identify, prioritize, and remediate infrastructure resilience issues across our AWS, GCP, Azure cloud environments). You'll be responsible for program governance, tool ownership, process development, and engineering engagement to scale the program across the organization. As secondary responsibilities, you will support the Cloud Security program as a senior technical resource. Key Responsibilities: Cyber Resiliency Program (Primary) Own the operational lifecycle of the Cyber Resiliency program, including tool administration, system and resource mapping, criticality tiering, and issue triage workflows Develop and maintain program governance: process documentation, SLAs for remediation, escalation paths, and quarterly review cadences Build executive reporting for security and engineering leadership: resilience score trends, remediation velocity, IaC coverage, and risk exposure by system criticality tier Drive the communication plan for the program, ensuring engineering teams understand expectations before receiving remediation tickets Define and maintain issue prioritization frameworks that balance system criticality, environment, severity, and remediation effort Partner with engineering leads to drive remediation of infrastructure resilience issues, removing blockers and tracking progress through Jira Cloud Security (Supporting) Partner with the Cloud Security team on architecture reviews, policy development, and strategic initiatives across GCP, AWS, and Azure Develop and refine security guardrails, policy-as-code, and automated detection and response capabilities for cloud misconfigurations Evaluate and improve cloud security posture including IAM architecture, network segmentation, and workload protection Ensure cloud security solutions are under configuration management and deployed through CI/CD pipelines Requirements: 5+ years of experience in information security, with demonstrated experience in a senior technical role Experience operationalizing a security program or service: building governance, processes, and reporting, not just executing within an existing framework Deep hands-on experience with at least one major cloud platform (GCP strongly preferred), including IAM, networking, compute, and storage security Strong experience with infrastructure-as-code (Terraform required) and CI/CD pipelines Demonstrated ability to drive remediation and risk reduction across engineering teams without direct authority Experience building executive-level security reporting and metrics Excellent communication skills: able to present program status and risk to engineering leadership, security leadership, and executive audiences Self-directed with the ability to manage competing priorities across program operations and supporting workstreams Preferred Skills : Experience with cyber resilience or infrastructure resilience tooling (Gambit, Wiz, or similar CSPM/CNAPP platforms) Experience conducting risk assessments or security maturity assessments using frameworks such as NIST CSF, ISO 27001, or CMMI Background in Kubernetes security and container workload protection Experience with multi-cloud environments (GCP + AWS + Azure) Python scripting for automation and tooling Security certifications (CISSP, CCSP, SANS certifications, or similar) Prior experience in a SaaS, contact center, or communications platform environment Experience mentoring or technically leading junior engineers Workplace location : This role is hybrid and requires 3 days a week in our Porto office. 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.