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May 18, 2026

Fullstack Developer

Senior • On-site

Copenhagen, Denmark

Introduction & Summary
We are seeking a highly skilled Fullstack Developer.

The ideal candidate will possess extensive experience in backend and frontend development, with proficiency in Python and JavaScript frameworks. If you have a passion for developing innovative solutions and a keen interest in AI technologies.

Main Responsibilities
As a Fullstack Developer, you will be responsible for designing and implementing web applications and services. Your focus will be on enhancing user experiences through effective software solutions.

  • Develop and maintain backend services using Python with FastAPI.

  • Implement frontend solutions utilizing React / NextJS.

  • Work with PostgreSQL (Relational) and Qdrant (Vector) databases.

  • Utilize Azure and Docker for deploying applications.

  • Collaborate with cross-functional teams to define, design, and ship new features.

  • Ensure code quality and maintainability throughout the development process.

  • Debug and optimize existing applications.

Key Requirements

  • Strong experience in backend development using Python (FastAPI, SQLAlchemy, Alembic).

  • Proficient in frontend technologies, specifically Javascript/Typescript with React / NextJS.

  • Experience with relational databases, particularly PostgreSQL.

  • Knowledge of vector databases like Qdrant.

  • Familiarity with cloud platforms such as Azure.

  • Experience with Docker for containerization.

  • Experience with LLM / AI technologies is a plus.

  • Bonus: Familiarity with LangGraph / LangChain for Python.

Nice to Have

  • Previous experience with AI-driven applications.

  • Understanding of software design patterns and best practices.

  • Experience in agile development methodologies.

Start: ASAP

End: End of September 2026

Location: Greater Copenhagen Area

Onsite/remote: min. 3 days onsite per week