Full-stack Developer

About Cognee

Cognee is building the knowledge engine for AI agents to adapt and learn from feedback. We provide a developer tool for engineers and data scientists to build agentic systems that work in critical workflows –  open-source Python SDK runs 1,000,000+ times per month, it is in production at 70+ companies, we reached 12k+ Git Hub stars and hit Git Hub trending several times.

The Full-Stack Developer supports Cognee’s design, product and growth teams and is responsible for user experience, usability engineering, industrial and graphical UI design, localization as well as UI engineering. Given the abstract nature of our product, your job will be to create easy to understand visualisations for our website as well as cloud solutions. By actively shaping our cloud platform, you will take active responsibility in the user experience of our customers and actively shape the success of Cognee.

It is an ideal role for someone who enjoys creative development, ownership and impact in a fast-paced startup environment.

• Develop and maintain the frontend of our cloud platform
• Implement new features end-to-end
• Integrate backend APIs and services
• Ensure performance, scalability, and clean architecture
• Manage state, routing, authentication, and API flows
• Improve UX based on product feedback and usage patterns

• Provide UI/UX input early in feature planning
• Translate product requirements into structured frontend architecture
• Improve design systems and component libraries
• Maintain a clean, scalable frontend structure

• 7+ years of experience with modern frontend frameworks (React or similar)
• Know how to build and deploy Python services on K8 (FastAPI)
• Experience with LLM APIs

• You work in a fast-paced environment, where effort is rewarded. Alongside a strong salary, we want you to participate directly in the company’s success with stock options
• You are working at the frontier of AI, building a core infrastructure piece to enable self‑adapting agentic systems at scale
• Access to the San‑Francisco ecosystem and a chance to work from our office in the bay area
• Work from a beautiful office space in Kreuzberg, at one of the ‘coolest streets in the world’, including free lunches