Software Engineer

Responsibilities:

• Own and evolve our public REST API and the developer experience around it, from API design and ergonomics to versioning and errors.
• Build and maintain our client SDKs across TypeScript and Python, and lead the launches of our upcoming SDKs.
• Ship our Agent SDK, expanding it into a surface for multi-step, agentic workloads built on OpenRouter.

Developer Experience Focus:

• Treat documentation, examples, and starter repos as products, instrumenting what developers and AI coding agents land on first.
• Make every developer-facing surface agent-friendly, given that AI coding agents are users of our APIs and SDKs.
• Collaborate with our DevRel, Product, and Platform teams to identify gaps in the developer ecosystem.

Candidate Profile:

• 5+ years building external-facing developer products such as APIs, SDKs, or developer platforms widely used by engineers.
• Strong API and SDK design instincts with a track record of shipping libraries that developers integrate with.
• Strong TypeScript skills and an AI-forward workflow, interested in what agentic systems can do.
• High agency and a bias toward action, comfortable owning a product line at a small company with fluid team boundaries.