Senior Software Engineer, IAM

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. Toast is looking for a Senior Software Engineer to join our Identity Management team to play a critical role in developing reliable code and algorithms in our user management, permission, and web services. We are looking for an engineer who has the ability and drive to make an impact, not only on their own but by also enabling those around them to succeed. Partnering with stakeholders, product managers, product designers, product data analysts, and other engineers, you will be part of a team responsible for ensuring that our practices in the development of our platform are safe and secure. You will also be responsible for developing and maintaining core services and repositories in Toast, including integrations, managing users, authentication, and permissions. The Toast platform processes tens of millions of requests per day, and this number grows constantly as we add new restaurants and integration partners to our system. The services we develop on this team are essential for Toast’s operation and their resilience and reliability are crucial from a business and user perspective. If you want to help create something tangible that is used every day, help small businesses achieve their vision, and take on the challenge of scaling a SaaS product from millions of users to hundreds of millions of users, Toast is the place for you. A day in the life (Responsibilities) Be part of a team working collaboratively with UX, PM, QA and other engineers designing, building and maintaining high performance, flexible and highly scalable microservices, as well as development of web and mobile applications Define best practices and help choose technologies to evolve our current tech. stack while writing world-class applications Championing best practices such as quality integration and unit testing Tackle scaling challenges and implement robust solutions. Provide design feedback and participate in code reviews to ensure implementations meet requirements Monitor feature rollouts to ensure customer success, iterating and improving when necessary. Design, build, deploy, and maintain highly resilient and scalable systems critical to our customers’ success. Diagnose performance bottlenecks and optimise for better performance. Ensure that all work done is delivered with quality and is appropriately monitored and supported in production Mentoring other team members What you'll need to thrive (Requirements) Proficient in Java, Kotlin or another object-oriented language, with a deep understanding of testing, quality & best practices. In-depth understanding of microservices, distributed systems, and enterprise messaging. Familiar with asynchronous communication tools (e.g., Pulsar, JMS, Kafka). Proven track record of delivering reliable services to production. Excellent communication skills, with the ability to simplify complex technical concepts for non-technical stakeholders. A passion for technology and continuous learning. Prior experience making an impact on a previous project, product or within an organization. Enthusiasm for solving impactful challenges and writing clean, scalable code. A focus on both personal and team growth, balancing task completion with platform stability. The capacity to tackle complex and ambiguous problems , communicate clearly with others to solve the problem, and share knowledge to help the whole team succeed Experience working in the IAM space Exposure to distributed systems is a plus Experience working in a team with Agile/Scrum methodology **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 . #LI-HYBRID #BI-Hybrid 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.