Senior Software Engineer, Product

Senior Software Engineer, Product San Francisco, CA / Remote (US) Full-time About the company We're partnering with a venture-backed AI infrastructure company building tools that help teams develop, test, and deploy reliable machine learning systems. Their product is used by both fast-growing startups and large enterprise customers to ensure AI behaves consistently, safely, and at scale. The team is early, highly technical, and product-focused. Founders have deep experience building complex AI systems and are now investing heavily in the frontend and product experience to support enterprise-grade use cases. The role This is a product-focused frontend engineering role for someone who cares deeply about craft, usability, and polish . You'll work directly with the founding team and designers to build high-quality, web-native product experiences. The role goes beyond implementing designs — you'll help shape technical direction, influence product decisions, and turn complex customer problems into elegant, scalable UI solutions. What you'll do Partner closely with founders to expand and refine the core product Collaborate with design to ship polished, high-quality UI/UX Build complex frontend features using React and modern web technologies Implement thoughtful interactions, animations, and micro-interactions in code Improve frontend architecture and codebase health using current best practices Help define a technical roadmap that translates customer needs into product improvements Contribute to hiring and help raise the bar for frontend quality across the team What we're looking for 4+ years of experience in frontend or product-focused engineering Deep expertise with React; experience with Next.js and/or Vite is a plus Strong command of TypeScript and modern JavaScript Close attention to detail and pride in building polished user experiences Ability to own projects end-to-end with minimal oversight Interest in AI systems, developer tools, or highly technical products Comfort working in ambiguous, fast-moving environments Why this role High impact: Build the frontend of a platform solving real problems in AI reliability and trust Early ownership: Work directly with founders and influence core product and technical decisions Growth: Opportunity to grow into a staff-level or lead role as the company scales Flexibility: Remote-friendly with optional in-person collaboration Strong team: Collaborate with experienced engineers and product leaders Benefits Competitive salary and meaningful equity Health, vision, and dental insurance Flexible PTO Remote-friendly / hybrid culture Regular team off-sites and team events