Staff Software Engineer Retirement AI
Gusto is a payroll and HR platform that helps small businesses pay domestic and international employees, manage benefits, and automate compliance.
Maintainer signals as of 8/12/2026
Projects
About Gusto
Gusto serves small and mid-sized businesses with payroll processing, employee benefits administration, and HR tools in one platform. Users can run payroll, manage health insurance, hire globally, and pay international contractors in local currency or USDC stablecoins. The platform automates payroll tax filings across multiple states and integrates with tools like QuickBooks and Xero.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will ship user-facing AI features for Gusto Retirement, implementing language-model-powered experiences and integrating LLMs through prompting, tool loops, evaluation, and monitoring. You will make pragmatic architecture decisions, collaborate with product and design, write reliable code, and integrate with existing systems.
Requirements
- 7+ years of software engineering experience building and shipping production products or platforms
- Hands-on experience implementing LLM-powered features such as RAG flows, agents, tool loops, or workflow automation
- Strong engineering skills in services, APIs, and data flows
- Experience contributing to team execution including sprints, Jira, scoping, and cross-functional coordination
- Ability to communicate with product, design, and engineering teams
- Experience with Ruby on Rails or a comparable language
- Experience with React or a comparable library
Responsibilities
- Design, build, and ship production features using large language models
- Implement and integrate LLMs through prompting, tool loops, evaluation, and monitoring
- Make architecture decisions and resolve technical risks
- Partner with product and design to shape and iterate on experiences
- Collaborate with engineering teams to integrate existing systems
- Write clear, reliable, well-tested code
Benefits
- Equity (RSUs)