Senior Full-Stack Developer position in Copenhagen. Requires 5+ years of experience with React.js, Node.js, NestJS, NextJS, TypeScript, PostgreSQL, MongoDB, and Docker. Responsibilities include developing and maintaining back-end and front-end solutions, implementing automated tests, conducting code reviews, and addressing technical debt. Salary ranges from DKK 60,000 to DKK 65,000. Benefits include free lunch, coffee/tea, pension plan, and a positive work environment. Work schedule involves 3 days in the office per week.