Staff Software Engineer

USAFull-time2026-10-07 → 2026-11-10

Hybrid

Core

Design, build, test, and own end-to-end experiences for savers managing 401(k)s, IRAs, contributions, portfolios, and withdrawals.

Role type

Staff Software Engineer (Backend/Frontend)

Builds

Backend services, APIs, and frontend interfaces for retirement savings platforms

Domain

Fintech / Retirement Savings

Required skills

Ruby on Rails, React, GraphQL, message-based systems (Sidekiq, Kafka), system architecture, production support, observability

Preferred skills

AI tools in engineering workflow, proactive guidance on retirement decisions

Technologies

Ruby on Rails, React, GraphQL, Sidekiq, Kafka

Responsibilities

Design and build backend services and APIs; own frontend interfaces; contribute to system architecture; debug production issues; improve reliability and operational tooling

Seniority

Staff, hands-on IC with strategic influence

About Gusto

At Gusto, we're on a mission to grow the small business economy. We handle the hard stuff — payroll, health insurance, 401(k)s, and HR — so owners can focus on their craft and their customers. With teams in Denver, San Francisco, and New York, we support more than 500,000 small businesses nationwide and are building a workplace that reflects the people we serve.