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’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.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 Staff Software Engineer to join our Payments team to build out 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. The successful candidate will guide and contribute to the development of services providing supporting and core functionality within and around this payment processing solution.A Day In The Life (Responsibilities)Plan, design, build, and deliver features for Toast’s payments productsPlan, develop, and implement best practices such as automated test suites to ensure the code shipped to our customers meets the highest quality standardsRoll — pun intended! — features out to customers, including monitoring for successCollaborate with our PM (and UX) on the definition and design of featuresCollaborate and partner with a wide array of teams across Toast in order to spread knowledge inter- and intra-teamLead and work with experienced engineers to deliver design and code reviewWhat You’ll Need To Thrive (Requirements)8+ years of experience in designing and implementing robust backend servicesAbility to step into a technical leadership role on the team, guiding/coaching/mentor more junior engineers on best practices in architecture, design, coding, testing, deployment, etc.Proven ability to design and develop scalable and secure APIs that integrate with various internal/external systemsApplied knowledge of best practices in API lifecycle management, including versioning, documentation, and deprecation strategies, with the ability to share this amongst the team and peersDemonstrated experience with microservices architecture and containerization technologies for enhanced scalability and maintainabilityNice to HavesDemonstrated proficiency with DynamoDB or PostgreSQLProficiency in Kotlin (or Java and willing to learn Kotlin) and Kotlin‑specific frameworks and libraries for building efficient backend solutionsExperience with modern data architectures (event sourcing, OLAP, ETL/ELT, streaming data)Experience designing payments APIsFamiliarity with PCI‑DSSFamiliarity with AI‑augmented development workflows and tools (e.g., Claude Code, GitHub Copilot, Codex, or similar)BenefitsWe strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry.AccommodationsToast 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.Equal Employment Opportunity StatementFor 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.
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