Description:

OpenRouter is the world’s largest marketplace of LLMs, rapidly growing to meet the needs of developers, enterprises, and AI enthusiasts.
The company is seeking a Senior Full-Stack Engineer to join a 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 functional software.
The engineer will play a critical role in shaping the product as the company scales, expanding platform features, and delivering exceptional user experiences.
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; candidates should thrive in fast-paced, ambiguous environments and be resourceful and proactive.
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 is important; candidates should care deeply about user experience, performance, and maintainability, aiming to ship delightful and impactful features.

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