Staff Software Engineer, Security & AI Platform

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 500,000 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: We’re hiring two Staff Engineers for our Product & AI Security Engineering team. You’ll own and evolve the security foundations behind Gusto’s products and AI/LLM experiences—from authentication and authorization at scale to securing core services and data.You'll define and own security architecture and standards across Gusto's products and AI/LLM experiences — setting the direction for authentication, authorization, and safe data handling, and building the platf