Senior AI Engineer, Retirement Savings (Remote/Hybrid)

gusto; United States; Hybrid; USD 187,000 - 284,000; Full time

Benefits offered by this job

Stock equity

Hybrid work schedule

Remote-friendly

Job summary

gusto is seeking a senior software engineer to lead hands-on development of AI-powered, customer-facing features for retirement savings products. You will own end-to-end implementation of LLM capabilities, collaborate with product and design, and drive rapid iteration from idea to production.

The role requires strong coding focus, architecture decision-making, and cross-team coordination to deliver scalable, reliable systems at pace.

Qualifications

• 7+ years of software engineering experience shipping production products or platforms.
• Hands-on experience building LLM-powered features (RAG flows, agents, tool loops).
• Strong fundamentals across services, APIs and data flows; heavy coding focus.
• Experience leading execution: sprints, tickets, scoping, cross-functional work.
• Bias to action: iterating quickly and making pragmatic technical calls.
• Proficiency with Ruby on Rails and React; strong communication across teams.

Responsibilities

• Design, build, and ship production features using large language models.
• Implement prompting strategies, tool-use loops, retrieval-augmented flows and evaluation.
• Make pragmatic architecture decisions and keep workstreams unblocked.
• Partner with product and design to refine concepts and iterate end-to-end experiences.
• Collaborate with adjacent teams to integrate with existing systems and resolve dependencies.
• Write clear, reliable, well-tested code that ships quickly and scales.

Skills

LLM development

API design

Ruby on Rails

React

Team collaboration

Tools

Ruby on Rails

React

Job description

gusto is seeking a senior software engineer to lead hands-on development of AI-powered, customer-facing features for retirement savings products. You will own end-to-end implementation of LLM capabilities, collaborate with product and design, and drive rapid iteration from idea to production.

The role requires strong coding focus, architecture decision-making, and cross-team coordination to deliver scalable, reliable systems at pace.