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Senior Software Engineer - Card Readers Toast is building the all-in-one restaurant platform that helps restaurants operate their business, increase sales, engage guests, and keep employees happy. Toast connects employees, operations, and guests on a reliable, easy-to-use platform so restaurateurs can stay one step ahead of a rapidly evolving hospitality market. The Card Readers team processes millions of card payments a day for Toast’s restaurant customers. Hundreds of thousands of restaurants depend on the software we build to run their business. We make payments friction-free while maintaining the highest levels of security, enabling new payment options, and staying at the forefront of emerging technologies. As a Senior Software Engineer on the Card Readers team, it’s your job to make sure those millions of payments are processed quickly, reliably, and securely. You will be a key team member responsible for designing, developing, and maintaining our POS payment integrations. You will work closely with hardware SDKs, the core POS application team, and other cross-functional stakeholders to drive technical decisions and refine the target architecture for our payment solutions. Your expertise in high-throughput asynchronous JVM solutions, coupled with a deep understanding of mission-critical transaction processing, will be crucial in delivering robust and scalable solutions. A day in the life (Responsibilities) Design, develop and roll out robust, high-performance applications using Kotlin. Lead technical discussions and decisions on best practices, performance optimizations, and security. Collaborate with cross-functional teams (backend, product, UX/UI, QA) to deliver seamless payment experiences. Optimize mobile payment flows for security, speed, and reliability. Shape the face of development at Toast by helping to balance building maintainable software for long term success, with the need to deliver value to customers in an iterative fashion. Ensure compliance with PCI-DSS, security best practices, and other financial industry standards. Mentor and guide junior engineers, conduct code reviews, and drive best practices in software development. Troubleshoot and resolve complex technical issues, ensuring high availability and performance. Participate in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Stay up to date with emerging technologies, frameworks, and trends. What you'll need to thrive (Requirements) Expert-level proficiency in Kotlin, Java, and/or JVM languages Deep knowledge of multi-threading/concurrency (experience with coroutines a plus) Experience working in a large (Android) project/codebase, architecting for clear domain boundaries, modularity, reusability, and testability Track record of complex and robust SDK integrations completed successfully Experience designing public APIs for hassle-free consumption Expertise in observability, monitoring, and alerting for complex user-device interactions Strong skills in mentoring fellow developers on best practices Openness and enthusiasm for AI tooling to enhance R&D productivity Excellent communication, collaboration, and problem-solving skills that lead others by example Nice to have: Card Payments/EMV experience Hardware/device integration experience Security and key management experience === PREVIOUS REQUIREMENTS FOR COMPARISON === Strong proficiency in Kotlin and modern Android frameworks (Jetpack, Coroutines, Flow). Deep understanding of Android architecture components, MVVM, and Clean Architecture . Strong knowledge of Android security best practices and secure data storage. Familiarity with mobile payment processing, tokenization, NFC, and EMV standards (a plus). Experience working with third-party payment gateways, in-app purchases, or POS integrations (a plus). Excellent communication and collaboration skills, with the ability to work effectively with cross-functional teams. Strong problem-solving skills and ability to work in a fast-paced, agile environment. Non-essential skills, nice to have Prior experience with distributed systems and microservices Experience with EMV Payments or Kernel ** This is a hybrid role requiring in-office presence two days per week *** #LI-HYBRID #BI-Hybrid AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits . How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast People Are the Secret Ingredient in Our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com . ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. At Toast, the IQ Grow team is on a mission to scale new, high-impact go-to-market initiatives. By combining the cutting-edge innovation of AI agentic solutions with human-in-the-loop workflows and touchpoints, we are redefining how restaurants connect with their guests. Our goal is to deliver a truly personalized marketing experience that empowers Toast customers to build lasting relationships, drive engagement and grow their businesses. If you're excited about pioneering at the intersection of advanced AI and human-centered design to make a real-world impact, we’d love to have you on the team! You will be a key part of a high-impact, high-ownership engineering team solving complex challenges in a fast-moving product space. Your engineering leadership will be balancing technical excellence alongside a strong product mindset to solve for continuous growth within both the team and our product space. A day in the life (Responsibilities) Design, build and maintain high performing, flexible, and scalable solutions that help restaurants deliver a best-in-class guest experience : define and execute the technical architecture for AI agents within Marketing and Demand Generation domains, ensuring systems are scalable, reliable, and secure. Collaborate closely with Product, Design and Engineering stakeholders Maintain a strong hands-on presence, writing code, prototyping new patterns, and resolving complex technical bottlenecks under load. Collaborate with Principal and Senior Principal Engineers across Toast to align on best practices, agent patterns, and spec-driven development paradigms. Guide, mentor, and elevate engineers within the Team area, fostering a culture of technical excellence and continuous learning. Ship features end-to-end, from design through rollout, monitoring for success and iterating based on real-world use Be an awesome teammate who's all in on collaboration and collective success Leverage cutting edge AI tools to enhance you and your team’s development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team. Mentor less experienced engineers and up-level the team through design reviews, constructive feedback, and agent-assisted engineering practices What you'll need to thrive (Requirements) 8+ years of backend/full-stack experience, delivering products that drive impact Ability to read and integrate with frontend applications; showing curiosity to work across the stack when needed Strong enthusiasm for agentic development practices, LLM integration, and modern software paradigms. Effectively works with ambiguity, agile delivery, and shipping usable software incrementally Passionate about making users happy and seeing people use your product in the wild Strong on software development fundamentals — code quality, unit tests, clean code — and open to evolving your workflow with AI tooling Strong collaboration skills: you communicate clearly with engineers, product, and business stakeholders, and adapt technical detail to the audience Curiosity and a growth mindset: you seek feedback, embrace change, and want to grow toward broader ownership Balanced expertise: Ability to design high-level technical solutions on a whiteboard while remaining deeply connected to code-level execution and system performance. Effective communication: Ability to articulate complex technical ideas clearly to both technical peers and product leadership. Our Tech Stack A core of Java & Kotlin based backend services React SPAs leveraging Tailwind, GraphQL and Storybook. Android app built in Java & Kotlin running in the restaurant Claude Code and similar AI agentic development tools as part of daily engineering PostgreSQL and DynamoDB as core persistence And many more technologies that help us build a top class platform. **This is a hybrid role requiring in-office collaboration two days per week in our Dublin office .** #LI-HYBRID #BI-Hybrid AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits . How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast People Are the Secret Ingredient in Our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com . ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. Support Technology builds the systems and platforms that power how Toast supports restaurants across every stage of their journey. Our teams work at the intersection of customer experience, agent experience, and intelligent systems, developing the capabilities that enable scalable, high-quality support across channels. Support Tech is responsible for a broad ecosystem that includes agent tooling, customer-facing support experiences, communications infrastructure, and the emerging platform capabilities that enable AI-assisted support. These systems work together to help restaurants resolve issues quickly, access the help they need, and operate their businesses with confidence. As Toast continues to grow, the support platform must evolve to handle increasing scale and complexity while improving the overall customer experience. Support Tech plays a critical role in shaping how that platform develops, ensuring that our systems remain reliable, extensible, and capable of supporting new experiences and capabilities over time. About This Role We are building the Customer Experience Platform that will define how Toast supports restaurants at scale. As Senior Principal Engineer for Support Tech, you will serve as the LOB-level technical leader responsible for defining and driving the multi-year strategy that shapes how Toast delivers support. You will translate business strategy into coherent technical direction, align engineering investments with measurable customer and operational outcomes, and guide the architectural evolution of the support platform. This role extends beyond ownership of individual systems or services. You will help define how core components of the support ecosystem — including AI-assisted capabilities, contact center infrastructure, agent tooling, and customer-facing support experiences — work together as a unified platform. You will partner closely with engineering, product, design, and Care leadership to establish a shared technical vision, make high-impact architectural decisions, and ensure that our platform continues to scale as new capabilities and experiences are introduced. Success in this role requires strong systems thinking, sound architectural judgment, and the ability to bring clarity to complex technical environments. You will help strengthen engineering leadership across the organization, guide teams toward durable platform solutions, and ensure that our technology investments translate into meaningful improvements for both restaurants and the Care teams that support them. A day in the life (Responsibilities) Define and drive the multi-year technical strategy for the Support Tech platform, ensuring alignment with company goals and long-term customer experience outcomes. Lead architectural direction for critical platform capabilities that support customer and agent support experiences, including contact center infrastructure, AI-assisted support systems, and internal agent tooling. Evaluate and de-risk major technical investments such as platform migrations, vendor integrations, and large-scale architectural changes. Ensure that evolving systems across Support Tech operate as a coherent and extensible platform rather than a collection of disconnected tools or services. Partner with product, design, and Care leadership to translate strategic goals into scalable technical solutions that improve support outcomes and operational efficiency. Establish architectural principles and engineering standards that guide teams toward durable, scalable platform solutions. Provide technical leadership and mentorship to senior engineers, helping raise the overall engineering bar across the Support Tech organization. Influence technical direction across multiple teams and functions, aligning stakeholders around shared platform decisions and long-term strategy. Leverage cutting edge AI tools to enhance your development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team. What you'll need to thrive (Requirements) 10+ years of experience in software engineering, with a strong background building and evolving large-scale distributed systems and customer-facing platforms. Demonstrated experience defining technical strategy or architecture for complex platforms spanning multiple systems and teams. Strong systems thinking and platform design experience, with the ability to connect individual services and tools into coherent technical ecosystems. Proven ability to lead high-impact architectural decisions and guide organizations through complex technical transitions. Experience influencing technical direction across teams and collaborating with product, design, and operational partners to deliver meaningful business outcomes. Strong communication skills and the ability to articulate complex technical ideas clearly to both technical and non-technical stakeholders. A track record of mentoring senior engineers and raising the engineering bar within an organization. Experience working on customer experience platforms, workflow systems, or other complex operational software environments is strongly preferred. AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits . #LI-REMOTE The base salary range for this role is listed below. The starting salary will be determined based on skills, experience, and geographic location. In addition to base salary, our total rewards components include cash compensation (overtime, bonus/commissions if eligible), equity, and benefits. You can learn more about how we align pay with local labor markets in our Geographic Pay Zone Philosophy . Pay Range $246,000 — $394,000 USD How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast People Are the Secret Ingredient in Our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com . ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Toast is a rapidly growing company that's revolutionizing how the restaurant industry does business by pairing technology with an extraordinary commitment to customer success. We help restaurants streamline operations, increase revenue, and deliver amazing guest experiences through our platform that combines restaurant point of sale, team management, guest-facing technology, and award-winning customer support. Join us as we empower the restaurant community to delight guests, do what they love, and thrive. We’re looking for an engineer to help build and scale Toast’s labor cost and timekeeping platforms - systems that directly influence labor spend for more than 166,000 restaurant locations. You’ll work on highly visible, mission-critical infrastructure supporting millions of employees and operators across Toast restaurants. In this role, you’ll gain hands-on experience with large-scale, data-intensive systems. We’ve processed over a billion of shift records and are in the midst of an exciting architecture modernization to support rapid growth and faster development. We are operating at true scale, pushing the limits of our databases. If you’re excited to lay the technical foundation for the next generation of labor cost management—and to help restaurant operators save real money—we’d love to hear from you. A day in the life (Responsibilities) Drive the evolution of our next-generation timekeeping platform, operating at significant scale and processing tens of millions of shift events each week Build, run, and improve core backend systems alongside a collaborative, supportive team. Take end-to-end ownership of systems, contributing to a strong engineering culture focused on quality, reliability, and long-term maintainability Lead work across the full development lifecycle—design, estimation, implementation, testing, debugging, and deployment—while learning and applying best practices for building and operating reliable systems at scale. Ship code that directly impacts Toast’s growth and the day-to-day operations of restaurant teams Partner with product and design to influence what we build and how we build it Contribute to and elevate team standards through thoughtful code reviews and technical discussions Mentor and provide technical guidance to other team members What you'll need to thrive (Requirements) 5+ years of back-end experience with one or more object-oriented programming languages (such as Java, Kotlin, or similar). Experience owning and operating production systems. A track record of tackling ambiguous, high-impact challenges and delivering scalable solutions Ability and motivation to learn quickly and apply knowledge to solve real problems A hunger to take on challenging projects and build systems that operate at massive scale. Above all, we’re looking for a strong engineer with solid fundamentals. Our Tech Stack A core of Java & Kotlin based backend services React SPAs leveraging Tailwind, GraphQL and Storybook. Android app built in Java & Kotlin running in the restaurant Claude Code and similar AI agentic development tools as part of daily engineering PostgreSQL and DynamoDB as core persistence And many more technologies that help us build a top class platform. **This is a hybrid role requiring in-office collaboration two days per week in our Dublin office .** AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits . How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast People Are the Secret Ingredient in Our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com . ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Toast is driven by building the restaurant platform that helps restaurants adapt, take control, and get back to what they do best: building the businesses they love. Responsibilities Toast is looking for self-motivated individuals who love building great software and want to have fun while doing it. Our engineering teams offer opportunities to work on a variety of impactful areas, including Android and iOS development, web front-end, back-end infrastructure, AI/machine learning models, cybersecurity and compliance, and more. You could contribute to designing user-friendly interfaces, building secure and scalable systems in AWS using Java or Kotlin, applying machine learning for security and analytics, or creating tools for large-scale data processing. You’ll collaborate with talented mentors and engineers, gain hands-on experience with technologies like Python, TensorFlow, Splunk, and big data tools, and help empower restaurants through innovative technology. Whether you’re passionate about front-end design, advanced AI models, or cloud security, Toast has a role for you. Work on a an engineering team responsible for entire modules of Toast’s products Build, and maintain high performance, flexible, and highly scalable web and mobile applications Participate in designing, estimating effort, implementing, testing, debugging, configuring, integrating and documenting database, middle-tier and front-end code Develop AI powered tools that save our customers time and deliver better hospitality to their guests, Diagnose performance bottlenecks and implement optimizations Think in terms of the end-user and design accordingly Actively contribute to product design and feature selection discussions Participate in code reviews to ensure technical implementations meet functional requirements Build cutting edge tools for analytical data processing, explore the power of Toast data and build machine learning models Implement secure software development processes Leverage cutting edge AI tools to enhance your development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team. Requirements: Currently enrolled in an academic program A passion for learning and a desire to understand what it takes to build software that empowers restaurants to thrive and do what they love Knowledge of at least one of the following: Java development Mobile software development (preferably with Android) SQL or NoSQL databases RESTful microservices Web front-end basics: HTML, CSS, and JavaScript Machine Learning and/or Generative AI development #LI-DNI #BI-DNI How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast People Are the Secret Ingredient in Our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com . ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. Your mission is to lead the architectural design, technical execution, and implementation of AI agents and infrastructure for Toast's Team area within our FinTech line of business. The Team area is a mission-critical space on which our restaurants rely to manage their staff and optimize their labor. As a Principal Engineer, you will serve as a key technical leader in the group, driving modern architectural patterns—including spec-driven development and agentic workflows—to deliver high-impact software. A Day in the Life (Responsibilities) Define and execute the technical architecture for AI agents within the Team domain, ensuring systems are scalable, reliable, and secure. Partner closely with Engineering Managers and Product Managers to translate product roadmaps into robust technical designs and deliverables. Maintain a strong hands-on presence, writing code, prototyping new patterns, and resolving complex technical bottlenecks under load. Collaborate with Principal and Senior Principal Engineers across Toast to align on best practices, agent patterns, and spec-driven development paradigms. Guide, mentor, and elevate engineers within the Team area, fostering a culture of technical excellence and continuous learning. What You'll Need to Thrive (Requirements) 10+ years of experience designing, building, and operating highly scalable, mission-critical distributed systems and SaaS products (ideally AWS-hosted). Proven track record of leading complex technical initiatives and delivering robust software architecture from design to production. Strong enthusiasm for agentic development practices, LLM integration, and modern software paradigms. Balanced expertise: Ability to design high-level technical solutions on a whiteboard while remaining deeply connected to code-level execution and system performance. Effective communication: Ability to articulate complex technical ideas clearly to both technical peers and product leadership. What Will Help You Stand Out (Nice to Haves) Experience building systems that leverage LLMs, autonomous agents, or ML models. Hands-on experience with enterprise integration frameworks (e.g., Apache Camel) or event-driven messaging systems (e.g., Apache Pulsar). Experience establishing robust CI/CD, testing, and deployment strategies for complex systems. Domain knowledge in workforce management or restaurant operations. Location: Remote (within Ireland) or Hybrid (Dublin) AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits . How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast People Are the Secret Ingredient in Our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com . ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. We help restaurants streamline operations, increase revenue, and deliver amazing guest experiences through our platform that combines restaurant point of sale, team management, guest-facing technology, and award-winning customer support. As a Toaster, you will be challenged to take on meaningful projects to help craft the company's future. Join us as we empower the restaurant community to delight guests, do what they love, and thrive. Your mission is to lead the architectural design, technical execution, and implementation across the foundational domains of Toast’s Team Suite products, Payroll and Team Management. The Payroll product delivers daily value to its users - enabling restaurant owners to pay their staff and pay their taxes, and enabling transparency for wages and tips for restaurant employees. The Team Management suite allows restaurants to hire, manage, and schedule their staff. As a Principal Engineer, you will serve as a key technical leader in the group, driving modern architectural patterns—including spec-driven development and agentic workflows—to deliver high-impact software. A day in the life (Responsibilities) Lead fellow developers, product managers, designers, and user researchers to build a strong tech infrastructure that enables amazing features Own the architecture for authentication, authorization, and organizational hierarchy — driving technical direction in these domains across the organization Help us transform a traditional SasS platform into an agentic, system-of-action Flex your full-stack muscles by driving challenging large end-to-end initiatives or core architecture changes in a supportive, collaborative team environment Define and drive technical strategy for problems that affect multiple parts of the business Mentor developers across multiple teams through code-pairing and detailed code, architecture, and project reviews Champion best practices for development, deployment and quality life cycles Leverage cutting edge AI tools to enhance your development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team. What you'll need to thrive (Requirements) Strong technologist with extensive experience defining and implementing high scale SaaS solutions. Deep experience with identity and access architecture — authentication, permissions models, and multi-entity organizational hierarchy — in a multi-tenant SaaS platform. Experience with a broad set of technologies that includes those used at Toast - tiered web applications, microservices, mobile, API design patterns, Java, Kotlin, React, data analytics. Strong enthusiasm for agentic development practices, LLM integration, and modern software paradigms. Experience with integration design patterns across high-scale, data-rich enterprise systems. A proven track record of building partnerships across engineering, product, customer success, and other stakeholders. Experience and interest in mentoring peers Experience maintaining a high bar for quality, and guiding teams to hold a high bar for the technical quality of their deliverables. Hungry to take on challenging technical projects AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits . #LI-REMOTE The base salary range for this role is listed below. The starting salary will be determined based on skills, experience, and geographic location. In addition to base salary, our total rewards components include cash compensation (overtime, bonus/commissions if eligible), equity, and benefits. You can learn more about how we align pay with local labor markets in our Geographic Pay Zone Philosophy . Zone A $230,000 — $368,000 USD Zone B $200,000 — $320,000 USD Zone C $180,000 — $288,000 USD How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast People Are the Secret Ingredient in Our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com . ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Toast is building the restaurant platform that helps restaurants adapt, take control, and get back to what they do best: running the businesses they love. We’ve grown into a leading hospitality software company in the U.S., and are now entering our next phase of growth—one defined by scale, complexity, and a new class of enterprise customers. As our customers grow, so do the demands on our platform. Operators who once managed a handful of locations are rapidly expanding, while new enterprise brands are adopting Toast to power increasingly complex operations. Supporting this evolution requires more robust, enterprise-grade capabilities. Within this space, we’re looking for a Software Engineering Manager to lead our Partner Connect team. In this role, you’ll guide a team delivering high-impact features that directly shape the experience of every Toast customer. You’ll be responsible not just for what the team builds, but how it builds—driving clarity, improving execution, and maintaining a high bar for quality. Your team will own the frameworks to manage integrations with Toast for all our partners and customers.You will work with the team to help build a feature rich, consistent, unified experience for anyone who wishes to connect to Toasts APIs, consume our data and integrate with restaurants. You will also play a role in evolving our architecture to support ever more complex new features and best-in-class monitoring as we scale to orders of magnitude of our current size! You’re someone who enjoys developing engineers and building strong, collaborative teams. You connect day-to-day work to broader outcomes, helping your team understand the impact of what they’re building while identifying opportunities to deliver more effectively. You bring enough technical depth to provide clear direction and sound judgment, while still empowering engineers to take ownership. Day to day, your work will span reviewing design documents and pull requests, facilitating cross-team discussions, partnering with product and architecture on roadmaps, and supporting your team’s growth through regular 1:1s and feedback. Join us to shape a critical domain that touches every Toast customer. About this roll *: Help drive the operational plan and strategic roadmap Lead the technical vision and execution for Toast’s partner and integration platforms, driving business impact across the customer lifecycle. Coach individual contributors for professional and technical development Collaborate with stakeholders across the organization to help your teams get stuff done Mentor both new and experienced engineers in both technology and leadership Guide teams to build systems that will scale to the next order of magnitude of growth Track and ensure teams are delivering impact and outcomes in their work Drive knowledge sharing programs across the engineering organization Hire and develop new team members Operate effectively in a fast moving environment where experimentation, iteration, and platform stability must coexist. Do you have the right ingredients* ? Experience writing, delivering, and operating software in a SaaS environment Experience mentoring and developing successful teams A strong sense of empathy for customers and teammates A desire to build a diverse team that wins together and prioritizes customer success A process-driven approach to engineering leadership, with experience creating operating mechanisms, metrics, monitoring, and feedback loops that improve outcomes over time. Demonstrated success partnering with product stakeholders to drive measurable outcomes. Ability to translate broad strategic goals into clear technical roadmaps and execution plans. AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits . How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. We ask that you complete interviews and assessments on your own, without real-time AI tools, recording, or transcription bots, unless we tell you otherwise in advance. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast People Are the Secret Ingredient in Our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry brings together people with a wide range of backgrounds, experiences, and perspectives, and we value that same breadth at Toast. We strive to build a culture grounded in authenticity, respect, and humility, where every Toaster has a real opportunity to grow, contribute, and do their best work—raising the bar in delivering exceptional experiences for our customers and each other. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com . ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.