Full Stack Developer

November 4, 2026

Office

Senior

København, Denmark

Indeed

Keep in mind

Office-only work

Description

Permanent full-stack role developing business-critical digital solutions for the Danish healthcare sector. The work spans backend services, REST APIs, modern frontend applications, secure integrations, automated tests and production support in a complex enterprise environment. The position is fully onsite at the customer location in Copenhagen, delivered in collaboration with developers, architects, testers and DevOps across multiple suppliers.

Responsibilities

Developing and maintaining backend services, REST APIs and modern frontend applications
Building secure, reliable integrations between systems
Working with relational databases and data-driven applications
Implementing authentication, authorisation and secure API communication
Contributing to event-driven solutions and asynchronous processing
Developing automated tests and supporting CI/CD and deployments
Troubleshooting production issues and improving system performance and stability
Collaborating across teams and suppliers on technical design, documentation and delivery

Requirements

Solid professional fullstack development experience
Strong backend experience with C#/.NET, Java/Spring Boot or comparable technologies
Experience with JavaScript/TypeScript and modern frontend frameworks such as React, Angular or Vue
Experience with REST APIs, integrations and relational databases
Understanding of OAuth2/OpenID Connect, secure coding and API security
Knowledge of event-driven architecture, idempotency and asynchronous processing
Experience with automated testing, Git and CI/CD
Experience working in complex enterprise environments
Fluent Danish, both written and spoken
Experience with Docker, Kubernetes, Infrastructure as Code and multi-supplier delivery environments is an advantage

Conditions

Permanent employment with the first assignment supporting critical public-sector healthcare systems in Copenhagen
Full-time onsite presence at the customer location
Collaborative technical environment focused on quality, security, knowledge sharing and reliable software delivery