Senior Software Engineer, Core Frameworks

About the Role

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.

Join the Core Frameworks team, a focal point for foundational engineering at Toast. The Core Frameworks team empowers developers across the company by building and maintaining the core libraries and tools used for developing web services. We maintain and grow local development tools that accelerate engineers in the inner-loop of development, increasingly leveraging AI to enhance these workflows. As a Senior Software Engineer, you will be crucial in maintaining and enhancing the infrastructure and tools used by hundreds of developers at Toast to create a best-in-class customer and guest experience. You'll work on developing new features—including AI-assisted capabilities—that will enable other programmers to be more productive and effective in doing their jobs.

We seek a proactive and skilled Senior Software Engineer with a strong background in building core libraries and developer tooling. In this role, you will work as part of a team of talented engineers and collaborate closely with product managers and internal users. You will design, develop, and maintain tools that streamline the software development lifecycle, exploring how AI can further optimize these processes. You’ll also contribute to key internal development platform components like service templates, manage LaunchDarkly for the company, and help teams identify dependencies that need to be upgraded. This position is ideal for someone with an eye toward systematic software development and is passionate about delivering high-quality software solutions that improve the work of other developers.

Day in the Life (Responsibilities)

• Lead complex projects that impact developers across Toast
• Participate in code reviews and provide constructive feedback to peers
• Troubleshoot, debug, and resolve production issues as they arise
• Participate in architectural discussions and influence the technical roadmap
• Advocate for best coding practices to raise the bar for you, your team, and the company
• Mentor and provide technical guidance to other team members
• 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)

• Demonstrated leadership driving significant projects to completion from design to rollout
• Expertise with Kotlin/Java
• Experience integrating AI into developer tools
• Familiarity with developer tools: AWS, Docker, GitHub
• Experience building Backend API Services on a product-oriented team
• Confidence to take on big challenges and humility to ask questions when necessary

What Will Help You Stand Out (Nice to Haves)

• Experience with one of the API standards: OpenAPI, gRPC or GraphQL
• Exposure to React/Typescript and Go
• Understanding of CICD workflows
• Experience with ECS/K8s, Gradle and Postgres
• Experience with Backstage Developer Portal

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.