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.

About Wordware. 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.

About Sauna. 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.

Startups are intense, but the intensity is intentional here. We work in focused sessions, cool down, and go again. You’ll have real ownership, clear outcomes, and the satisfaction of seeing your work land with customers, not months from now, but this week. If you’re joining Wordware, you’re choosing impact over spectacle. You’ll shape the product, the standards, and the way we work together. It’s demanding but humane: we write things down, respect time off, and prefer steady progress to late-night heroics.

Who thrives here? People who like small, correct moves that compound. People who stay calm when the plan changes and make the next good decision without drama. People who treat constraints as design inputs, not roadblocks. If you’ve built something from scratch, carried it through the unglamorous parts, and kept your standards high, you’ll feel at home.

We’re not optimizing for résumé lines; we’re optimizing for judgment. You don’t need to be loud. You do need to be reliable, curious, and willing to own outcomes.

We judge by what you build, not when you build it. Weekends are for life. Burnout doesn’t make good software. We’re aiming for something durable and generational, and that requires knowing when to push and when to recharge. If that balance and this mission resonate, we should talk.

Don't see your role? If what we’re building clicks for you and you’re exceptional, tell us. We’ll consider shaping a role around the right person.

How to stand out? Show us signal. Build something with Sauna, send a short note on what worked and what didn’t, or point out a concrete way to improve the product. Clarity beats volume. Initiative beats polish.

If you’re truly excellent, a LinkedIn link is enough—ping it to lucy[at]wordware.ai

⚠️ Please read first

• This is a full-time, in-person role based in San Francisco (Presidio) - we work from the office 5 days a week.

• You must be based in the Bay Area or willing to relocate before starting.

• We require US work authorisation , but are open to O-1 visa sponsorship for truly exceptional candidates.

Full Stack Engineer

What You’ll Do

You’ll write and ship full-stack features end to end — from frontend UI, to backend logic, to the database and infra.

We’re still a small team, and the product is early — you won’t just be building features; you’ll help shape the trajectory of the company and the future of AI development.

Here are a few examples of the kinds of things you might work on:

• Build a real-time, multiplayer IDE for AI development — think Google Docs meets VSCode, powered by Y.js and TipTap.

• Extend our executor: a custom runtime that turns natural language into live, traceable agent workflows with pause/resume and retries.

• Design the “GitHub for AI” — an interface for exploring, remixing, and sharing agents and flows with versioning and collaborative editing.

• Talk to users, debug live issues, and ship fixes fast — often the same day.

• Make product calls in the moment when things are ambiguous, and help shape the platform we’re building.

• ${your ideas}.

Stack

TypeScript, React, Next.js, Node.js, PostgreSQL, Cloudflare Workers, Durable Objects, Y.js, and TipTap.

Who you are

Minimum

• You have 4+ years of engineering experience , with a strong track record of shipping real products.

• You’re fluent in TypeScript and comfortable working across the stack — frontend, backend, and database.

• You’ve built and owned complex full-stack systems end to end, not just small pieces.

• You’re comfortable with ambiguity , unblock yourself, and make progress without waiting on perfect specs.

• You enjoy working in a fast-paced, high-trust startup environment and like wearing multiple hats.

Bonus (but not required)

• You’ve worked with our stack: React, Next.js, Node.js, PostgreSQL, Cloudflare Durable Objects.

• You’ve built or integrated with LLM-based tools and have hands-on experience with AI workflows.

• You’ve been a founder or early-stage engineer before, and care deeply about product.

The Process

We keep our process simple. Exceptional candidates go from first touch to offer within 2 weeks.

1. Application

2. 15-minute intro call

3. 45-minute technical interview

4. System design interview

5. Final conversation

6. Work trial

• Full-stack Typescript, Next.js, React and SST serverless on AWS/Cloudflare
• Using TipTap as the core of our IDE with Y.js for collaboration
• PartyKit (Cloudflare Durable Objects) for Y.js websockets and likely for future orchestration of pipelines
• Open source LLMs hosted by Together AI (we’re a customer story on their website) + Groq + OpenAI/Anthropic/Mistral/Google/Cohere/Perplexity for proprietary LLMs