Senior Applied AI Engineer
About the role
Senior role responsible for building, refining, and scaling agent systems inside Sauna by Wordware, from architecture to evaluation and deployment. Focus on production-ready AI agent systems with fast response times, traceability, and uptime; collaboration across infra, frontend, and product.
Responsibilities
- Implement multi-step, tool-using agents that hit real APIs and handle retries, auth, timeouts, and edge cases.
- Design agent memory systems that persist relevant state across runs, e.g. memory migrations, context organization, and orchestration state.
- Create agents that proactively do work and send you reminders.
- Own and evolve our eval framework: both automated checks and human-in-the-loop scoring.
- Dig into production failures from traces and fix the underlying system.
- Plus whatever else you see fit.
Qualifications
- 4+ years of engineering experience, including time shipping production software.
- You've built and deployed agent-like systems: multi-step LLM pipelines, tool-using bots, scripted assistants, or similar.
- You ran at least one of them in production, made the architecture calls on it, and can explain the tradeoffs.
- Hands-on experience with production-grade code and cross-system work without a strict spec.
Skills
Benefits
- Base salary: $180K–$240K + meaningful early-stage equity + health, dental, 401(k), considerable PTO, gym budget, lunch.
About Wordware
AI agents you can rely on
AI Agents have arrived. They are powerful enough to read, plan, and act across your everyday life and work. The question is no longer whether they can run canned demos to check the weather, it’s whether real teams can rely on them for critical work. We optimize for adoption over spectacle: useful, accountable systems that help top professional complete real tasks. Wordware is backed by Spark Capital, Felicis, and Y Combinator, with a $30M seed round. Our beautiful, historic San Francisco office sits in the shadow of the Golden Gate Bridge, it’s full of plants and radiates innovation and calm. We genuinely love working together. At lunch we talk about alignment and AI consciousness, we have surfboards in the office ready to use, we take walking meetings on the beach and hang out after work at the bar or climbing wall. We work really hard because we care deeply about what we do. Sauna is Wordware’s AI workspace for professionals. Think ‘Cursor for Knowledge Work’ and you’re halfway there. With explicit permission, it connects to tools like Gmail, Calendar, Slack, and thousands more, to gather the right context to move your work forward. It learns who you are, drafts and refines your documents, presentations, and datasets, researches across the web and your org’s internal knowledge, summarizes long threads to cut through the noise, proposes next steps, even acts on your behalf when enabled. You can work with Sauna live, side-by-side, or schedule jobs to run automatically in the background, with clear permissions and easy off-switches. Sauna brings the power of AI Agents to all professionals.
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