Software Developer/Engineer

You will: Build and maintain integrations across 250+ platforms — APIs, OAuth flows, rate limiting, error handling. Ship features and fixes to the One CLI, the single interface for 64,000+ agent tools. Design backend systems that support agent memory, scheduling, and real-time triggers. Write clean, tested code that handles the edge cases real APIs throw at you. Work side by side with a small team — own problems, ship solutions, document them for the next person. You should have: 3+ years of professional software development experience. Strong proficiency in TypeScript and/or Node.js. Experience building or consuming REST and OAuth APIs. Solid understanding of async programming, error handling, and distributed systems basics. Hands-on experience with Claude Code, Codex, or a similar AI agent harness. This is not optional. Clear written communication in English — we work async across time zones. The ability to own a problem end to end without hand-holding. Bonus: You've worked on developer tooling, integration platforms, or middleware. You're familiar with MCP (Model Context Protocol) or LLM function calling. You have open source contributions we can read. How we work: We use Claude Code and similar agent harnesses every day. If you already work this way, you will move 5x faster here. If you don't yet, you will learn quickly. Comfort building with AI is not optional. Why One: Remote, global, async by default. Small team, real ownership, work that ships. A category being built in real time. Flexible setup and direct comms, always. Future Benefits: PTO This role may include other cash and non-cash compensation such as performance incentives, project bonuses, paid tools/software access, and more. Apply To This Job