Sr. Software Engineer, Group Engineering

Sr. Staff Software Engineer, Pay Group Engineering

Join to apply for the Sr. Staff Software Engineer, Pay Group Engineering role at Gusto

At Gusto, we’re on a mission to grow the small business economy. We handle the hard stuff—like payroll, health insurance, 401(k) s, and HR—so owners can focus on their craft and customers. With teams in Denver, San Francisco, and New York, we’re proud to support more than 400,000 small businesses across the country, and we’re building a workplace that represents and celebrates the customers we serve.

Learn more about our Total Rewards philosophy.

We’re hiring seasoned engineers to join our teams that work on core platform capabilities, improving our existing systems for extensibility and scalability, and building the future of Gusto’s Payroll system. As a Gusto Software Engineer at this level, you’ll guide projects end-to-end by influencing initial feature specs, understanding how to take existing systems closer to desired end states, executing on projects, and maintaining code that powers core experiences.

If you’re interested in building elegant software with far-reaching effects in our modern economy, join us!

Payroll is the beating heart of Gusto’s business. The Pay Group teams are responsible for the product, ops, and service components Gusto uses to onboard customers, process payrolls, calculate taxes & deductions, pay and file with tax agencies, and maintain compliance on behalf of the customers. The domain is highly complex and offers the opportunity to engage in system design that simplifies this for customers, both internal and external.

• Contractors + EOR: The Contractors + EOR team is building the best platform for businesses to hire, pay, and manage their entire workforce—whether they’re contractors, employees, or international teammates. We make contractor payments fast, reliable, and compliant, while simplifying workflows for employers with powerful tools like automated payments, reimbursements, and bulk onboarding. Beyond payments, we’re creating seamless experiences for international employees through payroll, onboarding, and compliance solutions that scale across borders.
  
  Together, our mission is to position Gusto as the go-to platform for small and mid‑sized businesses to confidently support every member of their team, no matter where they work.
• Payroll: Payroll is the core of Gusto’s business, ensuring employees are paid accurately, on time, and in compliance with complex regulations. Our teams design and maintain the infrastructure and customer experiences that make payroll simple and reliable. From setup through submission, we build intuitive systems that help business owners run payroll with confidence.
• Tax: The Tax team ensures Gusto customers remain compliant and confident by managing every aspect of payroll taxes—including setup, calculation, payments, filings, and year-end communications. We design seamless, end-to-end experiences that simplify complex processes and build the infrastructure that keeps taxes accurate and on time. By combining reliable systems with thoughtful design, our team makes one of the most complicated parts of running a business simple for employers.
• Time: The Time team builds trusted, intuitive tools that make it easy for businesses to schedule, track, and manage their teams. From scheduling shifts and managing availability to tracking hours and time off, we deliver smart, compliant solutions that reduce complexity for employers while empowering employees. By embedding automation and mobile-first workflows, we transform how time is managed—so teams can focus on what matters most.

• Design, build, and test the foundation that supports compliant payroll for millions of people
• Help scale one of the largest Ruby/Rails and Type Script/React applications in the world
• Collaborate on complex and ambiguous problems with partnerships from Engineering, Product Management, Design, Data Science, Compliance, Operations, and other cross-functional teams
• Build the software platform that powers multiple 1st and 3rd party products and serves millions of…