Description:

OpenRouter is seeking a Senior Full-Stack Engineer to join their small, highly technical team of 5.
The role involves shipping user-facing features, building elegant front-end interfaces with React, and creating powerful backend API functionality.
The ideal candidate will thrive on autonomy, value collaboration, and have a track record of shipping software that works.
Responsibilities include building and maintaining user-friendly interfaces using React and Next.js, designing and deploying scalable API functionality, taking features from concept to production, writing clean and maintainable TypeScript code, and optimizing performance across systems.
The team works asynchronously over Slack, Notion, and Linear, allowing for uninterrupted time to build high-quality software.

Requirements:

Candidates must have 4+ years of professional experience in full-stack development, including shipping user-facing features and working with modern front-end frameworks.
Proficiency in React, TypeScript, Next.js, and JS runtimes is required, with bonus points for experience with Cloudflare Workers or other edge-first serverless platforms.
A startup mindset is essential, as candidates should thrive in fast-paced, ambiguous environments and be comfortable taking ownership of projects end-to-end.
Strong communication skills and a team-oriented attitude are necessary, along with the ability to self-manage and deliver high-quality results while working asynchronously.
A craftsperson's approach to user experience, performance, and maintainability is expected, with a focus on shipping delightful and impactful features.

Employees will work at the forefront of AI and LLM infrastructure, building tools for developers and enterprises.
The position offers the opportunity to work closely with a small, talented team of top-notch engineers who value excellence and innovation.
There are growth opportunities available as the company scales, allowing for advancement into leadership roles or specialization in areas of interest.
Competitive compensation is provided, including an attractive salary, equity, and benefits that reflect the impact on the company's success.