Staff Software Engineer, Retirement AIActive$227K–$284K

The opportunity

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.

What you'll do

  • Design, build, and ship production features that use large language models to solve real customer problems.

  • Implement and integrate LLMs (prompting, tool loops, evaluation, monitoring, etc).

  • Make pragmatic architecture decisions, de-risk tricky areas, and keep the work unblocked.

  • Partner with product and design to refine ideas, shape scope, and iterate quickly on end-to-end experiences.

  • Collaborate with other engineering teams to integrate with existing systems and unblock dependencies.

  • Write clear, reliable, well-tested code that ships quickly and scales well.

What they're looking for

  • + years of software engineering experience building and shipping production products or platforms
  • Hands-on experience implementing LLM-powered features (e.g., RAG flows,: agents, tool loops, workflow automation with language models, etc)
  • Strong engineering skills (e.g., services, APIs, data flows); comfortable spending most of your time coding.
  • Experience running or heavily contributing to a team’s execution: sprints, Jira, scoping, and cross-functional coordination.