Staff Software Engineer, AI Developer Tools

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 400,000 small businesses nationwide and are building a workplace that reflects the people we serve.   All full-time employees receive competitive base pay, benefits, and equity (RSUs) — because everyone who helps build Gusto should share in its success. Offer amounts are determined by role, level, and location. Learn more about our Total Rewards philosophy .   AI is a fundamental part of how work gets done at Gusto. We expect all team members to actively engage with AI tools relevant to their role and grow their fluency as the technology evolves. AI experience requirements vary by role and will be assessed during the interview process. About the Role: As a Staff Engineer on the Developer Productivity – AI Developer Tools team, you will play a pivotal role in architecting and scaling the AI platform that powers how Gusto builds software. Operating at the intersection of platform engineering and applied AI, you will help redefine our development lifecycle by embedding intelligence directly into it. From building custom internal coding assistants and automating complex refactors to stabilizing local environments and enhancing CI/CD pipelines, your work will eliminate developer friction at every stage. Your mission is to harness Large Language Models and intelligent automation to accelerate engineering velocity, reduce cognitive load, and fundamentally transform how our teams design, test, and ship products. About the Team: The AI Developer Tools team is a specialized unit within Developer Productivity. We believe that AI is the next great leap in software craftsmanship. Our goal is to provide every builder at Gusto with a suite of "superpowers"—tools that understand our codebase and handle the "toil" so our builders can focus on creative problem-solving in a safe way with appropriate guardrails. We treat our fellow builders as our customers and prioritize tools that are not just powerful, but delightful to use. Here’s what you’ll do day-to-day: Architect AI Workflows: Design and implement internal tools and platforms that integrate LLMs into the developer workflow (e.g. automated PR reviews) with a focus on autonomous agentic agents. Collaborate & Evangelize: Work closely with builders across the company to understand their pain points and partner with Infrastructure/Platform teams to ensure AI tools are scalable and secure. Stay on the Cutting Edge: Actively engage with emerging AI technologies, frameworks, and research to ensure our internal tooling remains world-class, along with defining how we incorporate and manage best practices from the industry. Build Faster Feedback Loops: Identify bottlenecks in the development lifecycle and apply AI solutions to remove them, from local environment setup to automated testing. Ensure Stability: Like any infrastructure role, you will monitor the health of our developer tools, diagnosing issues related to performance, networking, and tool integration. Here’s what we're looking for: 8+ years of software development experience: You are a systems thinker who is comfortable with architectural complexity and delivering production-grade code. AI-Native Mindset: You are curious about (and using) AI tools in your daily flow. You understand how to prompt, fine-tune, or build RAG systems to solve practical problems. Developer-First Perspective: Curiosity and ability to operate in an AI-native environment. Integrating intelligence, automation, and experimentation to increase developer productivity through tooling and infrastructure enhancements. Strong Communication: You can translate complex technical AI concepts into actionable tools that provide immediate value to other engineers. Comfortable with architectural thinking and delivering solutions through code. Experience with Rails and Ruby, including developer tooling for large engineering teams. Ability to work with colleagues as both customers and partners. Our cash compensation amount for this role is targeted at $190,000/yr to $210,000/yr in Denver & most remote locations, and $220,000/yr to $250,000/yr in New York, Seattle & San Francisco Bay Area. Stock equity is additional. Final offer amounts are determined by multiple factors including candidate experience and expertise and may vary from the amounts listed above. Gusto has physical office spaces in Denver, San Francisco, and New York City. Employees who are based in those locations will be expected to work from the office on designated days approximately 2-3 days per week (or more depending on role). The same office expectations apply to all Symmetry roles, Gusto's subsidiary, whose physical office is in Scottsdale. Note: The San Francisco