Wordware
Senior Product Engineer
$180K–$240K
San Francisco · On-site · Senior · Full-time · Posted Sep 17, 2026
- Experience
- No specific years stated; the company says it values trajectory over tenure.
- Visa sponsorship
- US work authorisation required; open to O-1 or J-1 visa sponsorship for exceptional candidates.
About the job
Own and build Sauna’s product interfaces, taking features from interaction design through frontend and full-stack implementation, analytics, and iteration based on feedback.
What you'll do
- Build product surfaces for delegating work to Sauna, monitoring and controlling tasks, and reviewing results.
- Develop interfaces for memory, routines, generated apps, collaboration, onboarding, and billing across web and other channels.
- Deliver end-to-end features and improve client performance, including local-first handling of large message histories.
What they ask for
- Deep React knowledge and experience shipping complex web products through post-launch ownership.
- Ability to own full-stack features, including migrations, routes, data fetching, UI, and analytics.
- Strong product judgment, autonomy, and attention to performance and interaction details.
- Based in the Bay Area or willing to relocate before starting; US work authorisation required.
Nice to have
- Experience building UIs for LLM-based products or real-time collaboration.
- Local-first architecture or sync-strategy experience; design background or strong visual sense.
Pay
$180K–$240K USD base salary
Tools
TypeScript, React, TanStack Query, TanStack Router, TanStack DB, Zustand, TailwindCSS, IndexedDB
AI focus
Build the product interfaces for an AI assistant that carries out work, learns user preferences, and supports routines and generated apps; professional AI-product experience is not required, but candidates should use AI heavily in their workflow and explore current models.
Model-written summary · the original posting is authoritative