Software Engineer, AI Developer Tools

Gusto's mission is to grow the small business economy by handling payroll, health insurance, 401(k)s, and HR. With teams in Denver, San Francisco, and New York, they support more than 500,000 small businesses nationwide.

As a Staff Engineer on the Developer Productivity - AI Developer Tools team, you will architect the AI platform that accelerates engineering across Gusto, building a secure, context-aware, AI-native development lifecycle. You will eliminate developer friction through AI tools, multi-agent systems, and intelligent automation.

The AI Developer Tools team is a specialized team within Developer Productivity, providing every builder with a suite of superpowers tools that understand the codebase and absorb operational toil.

• Architect AI core infrastructure: design, scale, and maintain internal platforms and APIs integrating LLMs into the developer workflow, focusing on autonomous agents, RAG, and context delivery.
• Drive technical leadership: establish best practices for AI, including evals, guardrails, and latency/token optimization.
• Collaborate with product engineering, Infrastructure, and Security teams to ensure scalable, compliant, and secure AI tooling.
• Optimize feedback loops and maintain enterprise reliability with production-grade rigor.

• 8+ years of systems expertise with production-grade distributed software.
• Production AI experience with prompt engineering, fine-tuning, RAG, and multi-agent workflows.
• Developer-first mindset and passion for developer experience.
• Strategic execution with focus on data privacy, security, cost, and reliability.
• Exceptional communication and ability to work across teams.

Cash compensation targeted at $180,000-$200,000/yr in Denver & most remote locations, and $220,000-$245,000/yr for San Francisco, New York & Seattle. Stock equity is additional.

All full-time employees receive competitive base pay, benefits, and equity (RSUs).