Senior Full-Stack Engineer

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August 9

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OpenRouter

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Artificial Intelligence • SaaS • Education

OpenRouter is a platform providing a unified interface for interacting with various large language models (LLMs). It focuses on delivering better prices and uptime without the need for subscriptions. The platform supports multiple AI tasks and showcases models like Mistral Small 3 and DeepSeek R1 Distill Qwen 32B, which are designed for fast performance and high accuracy. OpenRouter also features gaming and coding tools that enhance usability across different sectors such as marketing, finance, and education.

2 - 10 employees

Founded 2023

🤖 Artificial Intelligence

☁️ SaaS

📚 Education

📋 Description

• About the Role: OpenRouter is the world’s largest marketplace of LLMs, growing rapidly to meet the evolving needs of developers, enterprises, and AI enthusiasts. As part of our small, highly technical team of 5, we are looking for a Senior Full-Stack Engineer who thrives on shipping user-facing features, building elegant front-end interfaces with React, and creating powerful backend API functionality. • This role is ideal for engineers who love autonomy, value collaboration, and have a track record of shipping software that works. You’ll play a critical role in shaping our product as we scale, helping expand our platform’s features, and delivering exceptional experiences for our users. • We work asynchronously over Slack, Notion, and Linear, protecting uninterrupted time to build. If you’re passionate about crafting high-quality software, working with cutting-edge technology, and helping us create an impactful AI infrastructure company, we’d love to hear from you.

🎯 Requirements

• Experience: 4+ years of professional experience in full-stack development, including shipping user-facing features and working with modern front-end frameworks. • Technical Expertise: Proficient in React, TypeScript, Next.js, and JS runtimes. Bonus points for experience with Cloudflare Workers or other edge-first serverless platforms. • Startup Mindset: You thrive in fast-paced, ambiguous environments. You're resourceful, proactive, and comfortable taking ownership of projects end-to-end. • Collaborative & Autonomous: Strong communication skills and a team-oriented attitude. You can self-manage and deliver high-quality results while working asynchronously. • Craftsperson's Approach: You care deeply about user experience, performance, and maintainability. Your goal is to ship delightful and impactful features, not just code.

🏖️ Benefits

• Cutting-Edge Work: Be at the forefront of AI and LLM infrastructure, building tools for developers and enterprises alike. • Small, Talented Team: Work closely with a tight-knit group of top-notch engineers who value excellence and innovation. • Growth Opportunities: As we scale, grow into leadership roles or specialize further in your area of interest. • Competitive Compensation: Attractive salary, equity, and benefits that reflect the impact you’ll have on our success.