Senior Software Engineer, International Mid Market

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.

International expansion is a critical growth engine for Toast's future. Outside the US, we currently operate in Canada, UK, Ireland, and Australia and are actively growing our product platform in these markets. As we gain market share, we are increasing our upmarket product investment into Mid Market (MM). Our goal is to be able to win and retain larger and more complex restaurant and hospitality operators.

As part of this team’s mission you will get close to customers to fully understand the nuances of each of their unique needs, to ensure your contributions are making a meaningful impact to their business. As a Senior Engineer you will be responsible for delivering these features from start to finish, ensuring code quality, high technical architectural standards and high quality products.

A day in the life (Responsibilities)

• Design, build and maintain high performing, flexible, and scalable solutions that help restaurants operate their business effectively

• 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

• Collaborate closely with Product, Design and Engineering stakeholders

• 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.

• 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)

• 5+ 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

• Excited about AI-assisted development and LLM-based agents (Claude Code or similar), and interested in pioneering new workflows with the team

• 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

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.

#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