Developer Platforms Engineer — API, SDKs & Docs

openrouter.ai; United States; Remote; USD 120,000 - 190,000; Full time

Job summary

OpenRouter is hiring a Software Engineer on the Developer Products team to build the surfaces external developers use to integrate with OpenRouter — our API, SDKs, docs, CLI, and other tools. You’ll help shape how agents interact with our platform and grow our developer ecosystem.

This role rewards autonomy and collaboration, with a track record of shipping reliable software. You’ll expand our platform’s features and deliver exceptional experiences for our users as the company scales.

Qualifications

• 5+ years building external-facing developer products (APIs/SDKs).
• Strong API and SDK design instincts with libraries engineers can integrate.
• Strong TypeScript skills; TypeScript shop across the AI ecosystem.
• Experience shipping developer-facing libraries and tools.
• Excellent written communication; documentation and SDK references are part of the role.
• Proactive, autonomous, shipping features without wait for tickets.

Responsibilities

• Own and evolve the public REST API and developer experience, including design, versioning, errors, and rate limiting.
• Build and maintain client SDKs across TypeScript and Python; lead SDK launches.
• Ship the Agent SDK and expand it for multi-step, agentic workloads.
• Treat docs, examples, and starter repos as products and ensure strong entry points for OpenRouter.
• Make all developer-facing surfaces agent-friendly for AI coding agents.
• Collaborate with DevRel, Product, and Platform to identify gaps and drive end-to-end initiatives.

Skills

API design

SDK design

TypeScript

Python

Developer tools

Tools

REST APIs

SDKs

Documentation tooling

Job description

OpenRouter is hiring a Software Engineer on the Developer Products team to build the surfaces external developers use to integrate with OpenRouter — our API, SDKs, docs, CLI, and other tools. You’ll help shape how agents interact with our platform and grow our developer ecosystem.

This role rewards autonomy and collaboration, with a track record of shipping reliable software. You’ll expand our platform’s features and deliver exceptional experiences for our users as the company scales.