Gusto

Staff Software Engineer building backend platform services and APIs that power Gusto’s payroll products at scale. The role owns complex technical domains, shapes architecture, and partners with teams across the company to deliver reliable and compliant payroll infrastructure.

Gusto is seeking a Staff Software Engineer to build full-stack expansion experiences that help small businesses discover, adopt, and retain more Gusto products. You’ll combine technical leadership, product judgment, and experimentation across customer-facing features, recommendations, upgrades, and personalization.

Own the technical strategy and measurable business outcomes for Gusto’s expansion funnel, spanning recommendations, nurture journeys, and self-serve conversion experiences. This senior staff role combines full-stack product engineering, growth experimentation, architecture, and technical leadership.

Staff Software Engineer owning full-stack HR Experience features end to end, from technical design through production monitoring. The role combines hands-on product development with technical mentorship and incident leadership.

Lead the technical direction of Gusto’s API and agent-facing platform while building scalable Ruby on Rails services that enable developers and AI agents to interact with payroll. This senior staff role combines hands-on software development, organization-wide technical leadership, and API design.

Build and evolve the cloud infrastructure platform that powers Gusto’s products, with a focus on AWS automation, Infrastructure as Code, and developer enablement. This Staff-level role will lead major cloud migrations, improve reliability and compliance, and turn operational challenges into scalable tooling.

Staff Software Engineer owning the end-to-end PEO onboarding journey, from customer discovery through setup, at Gusto. This full-stack role combines technical leadership, growth experimentation, cross-team collaboration, and AI-assisted product development.

Build and own full-stack retirement planning experiences that help more than a million savers manage 401(k)s, IRAs, contributions, portfolios, and withdrawals. This hands-on Staff Software Engineer role combines backend services, frontend applications, financial problem-solving, and end-to-end system ownership.