Backend Developer (Mid-Level) position in Copenhagen. Responsibilities include designing and implementing services using Python, Node.js, or Rust, working on data engineering, and collaborating with product teams. Requires strong experience with Python, web application development, and Git. Familiarity with FastAPI, SQL, and event-driven systems is a plus. Competitive salary with benefits including free lunch, wellness support, five weeks of holiday, and flexible work-from-home options.