Software Engineer II, Backend

Ability to work East Coast hours required

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.

We’re not your traditional tech company and we don’t aim to be. Going against the grain is in our DNA. Building a revolutionary product begins with revolutionary thinking. That’s why we value diversity of background and lived experience. Together, we empower restaurants of all sizes to build great teams, increase revenue, improve operations, and delight their guests. We pair our deep understanding of the restaurant industry with powerful cloud based software and restaurant-grade hardware to deliver an intuitive all-in-one platform. Join us on our mission to empower the restaurant community to delight guests, do what they love, and thrive.

Bready* to make a change?

Fintech at Toast operates one of the most critical portions of the Toast infrastructure: processing payments on behalf of our restaurants and ensuring that restaurants are paid in a timely manner. Payment processing is a key source of Toast’s revenue and also the lifeblood of our customers; we process millions of dollars in transactions per day.

We are seeking a Software Engineer II to join our Payments team. The successful candidate will contribute to the development of our unified payment processing solution. This platform offers a single, integrated service for payment acceptance across various channels and supports a configurable enterprise approach. It is designed to allow a build-once, available-to-all strategy for both existing and emerging payment methods.

About this roll* (Responsibilities)

Design, build, and deliver features for Toast’s payments products

Develop and implement automated test suite to ensure the code shipped to our customers meets the highest quality standards

Roll* features out to customers, including monitoring for success

Collaborate with UX and PM on the definition and design of features

Partner with a wide array of teams across Toast

Work with experienced engineers to deliver design and code review

Do you have the right ingredients*? (Requirements)

2+ years of experience in designing and implementing robust backend services using Kotlin.

Proven ability to develop scalable and secure APIs that integrate with various internal/external systems.

Knowledge of best practices in API lifecycle management, including versioning, documentation, and deprecation strategies.

Proficiency in Kotlin-specific frameworks and libraries for building efficient backend solutions.

Demonstrated experience with microservices architecture and containerization technologies for enhanced scalability and maintainability.

Proficiency in DynamoDB

Proficiency in Kotlin (or Java and willing to learn Kotlin) and Kotlin-specific frameworks and libraries for building efficient backend solutions

Familiarity with AI-augmented development workflows and tools (e.g., Claude Code, GitHub Copilot, Codex, or similar)

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.