Wordware
Staff Engineer
$280K–$400K
San Francisco · Staff · Full-time · Posted Mar 20, 2026
- Experience
- 8+ years as an IC engineer.
- Visa sponsorship
- Requires US work authorisation; open to O-1 or J-1 visa sponsorship for exceptional candidates.
About the job
Build and scale Sauna’s AI-powered software platform, making architectural decisions while remaining a hands-on individual contributor.
What you'll do
- Own architectural tradeoffs and implement migrations for systems scaling across users and integrations.
- Design reliable concurrent agent sessions with consistent state across integrations.
- Set reliability and observability standards, review significant PRs, and ship code daily.
What they ask for
- 8+ years as an IC engineer; Staff or Principal experience at a company with real scale.
- Built and operated systems serving millions of users, with production experience in distributed state, real-time streaming, and multi-tenant isolation.
- Recent hands-on AI/LLM work building agent systems, model routing layers, or tool-use architectures.
- Fluent in TypeScript and productive on day one.
Nice to have
- Strong opinions on agent runtimes and deployment strategies for long-running processes.
- Experience with Cloudflare Workers at scale or significant open-source contributions.
Pay
$280K–$400K USD base salary
Tools
TypeScript, Cloudflare Workers, Durable Objects, Hono, Drizzle ORM, Postgres, Zod, Vercel AI SDK
AI focus
Build agent systems and architectures for concurrent AI agent sessions across integrations.
Model-written summary · the original posting is authoritative