Gusto

Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API)

Gusto
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1 day ago
Denver, CO, USA +2 moreStaff+
H1B sponsor

Base Salary

$213k - $278k/yr

Responsibilities

  • Identify and solve high-impact technical and organizational problems spanning multiple domains.
  • Design API contracts and agent-facing tools for developer partners and AI agents.
  • Engage with developer customers and internal agent partners to deliver the payroll product.
  • Write clean, tested, and performant production code.
  • Provide technical guidance and mentoring across the organization.
  • Inform and maintain team practices for reliability and observability.
  • Troubleshoot and resolve production issues.

Requirements

  • 12+ years of professional software development experience.
  • Experience owning organization-wide engineering initiatives and contributing to the scaling of engineering organizations.
  • Expertise in Ruby and Ruby on Rails, including work across large Rails applications and multiple codebases.
  • Experience designing and building platforms and public-facing APIs for reliability, performance, and scale.
  • Experience mentoring engineers and raising the technical bar across an organization.
  • Ability to align technical goals with business priorities and communicate technical constraints to business leaders.
  • Preferred experience includes payroll, tax, or fintech domains; model-facing tooling such as MCP servers, tool and function definitions, or AI-provider integrations; and GraphQL at scale.

Benefits

  • Competitive base pay, benefits, and RSU equity; stock equity is additional to the stated cash compensation.
  • Employees based near Denver, San Francisco, or New York offices generally work in the office approximately 2–3 days per week or more depending on the role.
  • Approved remote work requires a secure, reliable, and consistent internet connection.
  • Gusto provides equal employment opportunity and reasonable accommodations for qualified applicants.

Tech Stack

GraphQLRubyRuby on Rails
Gusto

About Gusto

10,000+ employees

Gusto builds cloud software that handles payroll, benefits, HR, and compliance for small businesses in the U.S., sold as a subscription with integrated services. Its platform runs payroll, files taxes, administers health insurance and 401(k)s, and offers tools for onboarding and time tracking. Founded in 2011 and headquartered in San Francisco, the privately held company says it serves 500,000+ small businesses nationwide.

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