Senior Staff Software Engineer, API Infrastructure

Senior Staff Software Engineer, API Infrastructure

About 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.

About the Role :

As a Senior Staff Software Engineer on the Embedded Payroll team, you'll be a key technical leader responsible for influencing the team and broader organization as we build and scale our product. You'll do this through a combination of hands‑on development in our complex codebase and guiding others to deliver a high‑quality platform experience.

About the Team :

Gusto Embedded Payroll is a platform that allows developers to embed payroll directly into their own software using our APIs. We've taken Gusto’s robust payroll infrastructure and made it available to third‑party developers. Our vision is to enable anyone to build the best payroll product for their end customers—powering payroll for small and medium businesses across a variety of industries, from vertical SaaS to fintech and neobanks.

Here’s what you’ll do day‑to‑day :

• Identify and solve high‑impact problems involving technical and organizational complexity that requires understanding and coordination across multiple domains.
• Engage directly with our developer‑customers to deliver a remarkable payroll product.
• Influence organization‑wide AI best practices for platform and API engineering, ensuring solutions are secure, compliant, and aligned with business priorities.
• Partner with developer‑customers to create AI‑assisted onboarding, documentation, and sample apps that accelerate time‑to‑first‑payroll.
• Ship code. Clean, tested, and performant.
• Level up the craft of software engineering across the organization by providing technical guidance and mentoring.
• Inform and maintain best practices for reliability and observability for the team.
• Troubleshoot and resolve production issues.

Here’s what we're looking for :

Our cash compensation amount for this role is targeted at $200,000‑$230,000 / yr in Denver & most remote locations, and $230,000‑$270,000 / yr for San Francisco, Seattle & New York. Final offer amounts are determined by multiple factors, including candidate experience and expertise, and may vary from the amounts listed above.

Gusto has physical office spaces in Denver, San Francisco, and New York City. Employees who are based in those locations will be expected to work from the office on designated days approximately 2‑3 days per week (or more depending on role). The same office expectations apply to all Symmetry roles, Gusto's subsidiary, whose physical office is in Scottsdale.

Note : The San Francisco office expectations encompass both the San Francisco and San Jose metro areas.

When approved to work from a location other than a Gusto office, a secure, reliable, and consistent internet connection is required. This includes non‑office days for hybrid employees.

Our customers come from all walks of life and so do we. We hire great people from a wide variety of backgrounds, not just because it's the right thing to do, but because it makes our company stronger.

Gusto is proud to be an equal opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristic. Gusto considers qualified applicants with criminal histories, consistent with applicable federal, state and local law. Gusto is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. We want to see our candidates perform to the best of their ability. If you require a medical or religious accommodation at any time throughout your candidate journey, please fill out this form and a member of our team will get in touch with you.

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