AI Summary
Design and develop full-stack features, build and operate backend systems, and work directly with the CTO to make key decisions. 5+ years of engineering experience required. Fluency in TypeScript and experience with real-time systems a must.
Key Highlights
Design and develop full-stack features
Build and operate backend systems
Work directly with the CTO
Key Responsibilities
Write and ship full-stack features end to end
Build and operate the sandbox infrastructure
Design the deployment and migration pipeline
Technical Skills Required
Benefits & Perks
Base salary: $180K–$240K
Meaningful early-stage equity
Health, dental, 401(k)
Nice to Have
Cloudflare Workers
Durable Objects
serverless compute at the edge
Job Description
⚠️ 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.
What You'll Do
You’ll write and ship full-stack features end to end, from the agent runtime and backend APIs, to the web and desktop UI that users interact with every day.
We're still ~15 people and shipping to our first paying users. You won't just be building features, you'll be making the decisions that determine whether this system holds at 1000x the current load.
You'll work directly with our CTO. Here are a few examples of the kinds of things you might work on:
- Build and operate the sandbox infrastructure where agents execute code, process isolation, resource limits, secure credential handling across thousands of concurrent sessions.
- Design the deployment and migration pipeline for a Cloudflare Workers + Fly.io architecture, including blue-green rollouts and canary patterns.
- Instrument real-time workloads end to end: SSE streaming, task queues, and multi-model LLM provider routing.
- Ship new backend capabilities, tool integrations, scheduled task execution, memory indexing, and see them used by real people the same week.
- Reduce operational toil for a small team: structured logging, tracing, monitoring, and incident response tooling that actually works at our scale.
- ${your ideas}.
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TypeScript, Cloudflare Workers, Durable Objects, Hono, Drizzle ORM, Postgres, Zod, SST, Vercel AI SDK, Docker, React, Vite
Who You Are
Minimum
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- You have 5+ years of engineering experience building and operating backend systems in production. You've been on-call.
- You're fluent in TypeScript and comfortable working across the stack, but your instinct is to go deeper on the backend.
- You've built real-time systems: WebSockets, SSE, event streaming, or message queues in production.
- You have distributed systems intuition, you understand consistency tradeoffs and have opinions about them.
- You've shipped infrastructure to real users, not just internal tooling.
- You've worked with Cloudflare Workers, Durable Objects, or serverless compute at the edge.
- You've built agent systems, model routing layers, or tool-use architectures with LLMs.
- You've been a founder or early-stage engineer and care deeply about product.
Interested in relocating to United State? Check out our comprehensive Relocation Jobs in United State page with detailed relocation packages and benefits.
Base salary: $180K–$240K + meaningful early-stage equity + health, dental, 401(k).
The Process
We keep our process simple. Exceptional candidates go from first touch to offer within 2 weeks.
- Application: Submit your resume and answer a few short questions.
- 15-minute intro call: Quick check to align on location, motivation, and logistics. If it's a go, we move fast from here.
- 45-minute technical interview: You'll work through a real backend problem. We're looking for fluency, depth, and how you think about systems.
- System design interview: A deep dive into how you architect systems. We'll walk through a real Wordware problem together.
- Final conversation: We answer your questions and scope out the work trial.
- Work trial: Paid trial to work on a real project in person with us, usually a few days to two weeks (flexible to do what works for you). See how we work and whether this feels like the right fit on both sides.
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