4 hours ago
Base Salary
$180k - $240k/yr
Responsibilities
- Build and improve the runtime that starts agent work, maintains session state through tool calls, and resumes interrupted runs.
- Choose and implement actors, background jobs, or simpler services for different workloads and evaluate behavior under overlapping sessions.
- Design draining and resumption for long-running processes across code releases while accounting for in-flight work.
- Implement retries and timeout handling for tool calls, including cases where an external action succeeded without a returned response.
- Trace runtime failures, diagnose stalled or stopped runs, and own fixes through production.
Requirements
- Production experience building and operating stateful backend systems, including work that outlasts the initiating request.
- Experience making and shipping decisions between actors, background jobs, and simpler services.
- Experience debugging concurrency, retries, or recovery in owned production code.
- Productivity in TypeScript and interest in continuing hands-on coding as scope grows.
- Preferred experience with agent runtimes or harnesses, Cloudflare Workers, Durable Objects, comparable actor-based runtimes, or long-running processes that persist or resume across releases.
Benefits
- Full-time, in-person work in San Francisco’s Presidio five days per week; candidates must be Bay Area-based or willing to relocate before starting.
- Health, dental, 401(k), considerable paid time off, gym budget, and lunch.
- Paid in-person work trial lasting usually a few days to two weeks.
- Meaningful early-stage equity.
Tech Stack
About Sauna
Sauna (by Wordware) builds an AI assistant that compiles personal context to automate repetitive workflows—such as scheduling—and augment day‑to‑day knowledge work. It targets professionals who want software that adapts to their patterns, integrating with tools like scheduling apps rather than replacing them. The company is privately held, based in San Francisco, and raised a seed round in 2024.