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Gusto·San Francisco Bay Area, United States·onsite

Staff Software Engineer, Core Products

Posted 8 days ago
Apply on company site
Ruby on RailsReactJavaScript

About the role

What you'll do

  • Lead design, development, and testing of core Gusto products including Payroll, Benefits, HR, and Retirement.
  • Mentor engineers to solve complex technical problems in large-scale, high-impact domains.
  • Collaborate cross-functionally with Product, Data, Design, and Platform teams to deliver customer-centric solutions.
  • Own multi-quarter projects focusing on scalability, performance, and reliability of large Ruby/Rails and JavaScript/React applications.
  • Drive product lifecycle from early design through launch and iteration, ensuring high-quality, maintainable code.

What you should know

  • Ideal candidates have 8+ years of experience and a passion for building scalable, customer-focused products.
  • Role requires hands-on full-stack development and ownership across the entire product lifecycle.
  • Opportunity to work with emerging AI tools to accelerate development and improve product capabilities.
  • Requires willingness to travel for onboarding and hybrid office work in the San Francisco Bay Area.
  • Strong communication skills are essential for collaborating across engineering and business teams.

About the company

  • Gusto is a mission-driven company focused on growing the small business economy by simplifying payroll, benefits, and HR.
  • Supports over 400,000 small businesses with offices in Denver, San Francisco, and New York.
  • Values diversity, inclusion, and equal opportunity, fostering a workplace that reflects its diverse customer base.
  • Emphasizes a collaborative, test-driven environment with a strong focus on customer impact.
  • Offers a hybrid work model with on-site presence 2-3 days per week in major office locations.

Key required skills

Ruby on RailsReactJavaScriptTDDAI tools

Summary generated from the original posting.