Software Engineer (Full-Stack)

ABOUT THE ROLE We're a YC-backed AI developer tools startup (11–50 people, Seed stage) building intelligent AI agents that transform complex technical documentation into accurate, trustworthy self-serve experiences. Our platform helps technical companies deploy AI-powered assistants that answer product questions instantly — reducing support load and accelerating user onboarding. We're looking for a hands-on Full-Stack Software Engineer to join our small, high-impact engineering team. You'll work closely with the founding team and research engineers to scale our RAG engine, expand our analytics platform, and deepen integrations with a wide range of technical data sources. Your work will be visible, meaningful, and shipped quickly. WHAT YOU'LL DO - Work directly with the founding team and research engineers to define and implement features end-to-end. - Scale the backend infrastructure powering our Retrieval-Augmented Generation (RAG) engine using Python. - Experiment with and build new features in our analytics platform (React + Python). - Develop and maintain client integrations used to deploy the product for customers (React + Python). - Enable access to new kinds of data sources through Python-based ingestion pipelines. - Maintain and improve our React SDK. WHAT WE'RE LOOKING FOR Must-haves: - 3+ years of full-stack software engineering experience building complex systems with both Python backend and React frontend. - Strong proficiency in Python and JavaScript/TypeScript. - Demonstrated experience building AI assistants or NLP-driven applications. - Hands-on experience with machine learning, deep learning, and LLMs. - Experience with Retrieval-Augmented Generation (RAG) architectures. - Strong CS fundamentals — degree in computer science, mathematics, statistics, or a related field, or equivalent practical experience. Nice-to-haves: - Prior experience in a startup environment. - A marker of excellence: work at a recognized technology company, published research, significant open-source contributions, or a notable side project. - Familiarity with natural language processing techniques and tooling. COMPENSATION & BENEFITS - Salary: $100,000 – $150,000 USD annually - Visa sponsorship: Available LOCATION This role is fully remote, with a primary location preference around Berlin, Germany. Candidates based in or able to work from Germany, Denmark, or the United Kingdom are particularly welcome.