Full Stack Developer – Java & Modern Frontend

Digital Engineering

·

København, Pakhus 47

Full Stack Developer - Java & Modern Frontend
With close to 3,000 employees, we are one of the largest tech consulting companies in the Nordics. To put it simply, we help people create value in the complex landscape of digital transformation.

Apply here

Twoday is the leading digital transformation partner in Northern Europe with a global presence. With approximately 3,000 specialists, we collaborate with some of the most admired private and public organisations to deliver cutting-edge digital solutions. Our expertise spans software engineering, Data & AI, cloud platforms, digital experiences and business applications.

We are now looking for a Senior Platform Engineer to help transform a large-scale development and deployment platform from traditional DevOps into a modern AI-assisted and agentic engineering setup.

Permanent position at Twoday | Copenhagen

Full Stack Developer - Java & Modern Frontend

Twoday is looking for experienced Full Stack Developers to join our Digital Engineering organisation and work with business-critical digital solutions within the Danish healthcare sector.

You will work across backend and frontend development in a complex environment where software quality, integration, security and operational stability are essential.

The role

As a Full Stack Developer, you will contribute throughout the development lifecycle - from technical design and backend services to user interfaces, testing, deployment and production support.

Your responsibilities will include:


Developing and maintaining Java-based backend applications

Developing REST APIs and system integrations

Developing modern frontend applications using JavaScript and TypeScript technologies

Working with Spring and Spring Boot

Integrating frontend applications with backend services and APIs

Working with relational databases and data-driven applications

Developing automated unit and integration tests

Participating in code reviews and technical design

Supporting CI/CD, deployment and production operations

Troubleshooting complex issues across frontend, backend and integrations

Contributing to modernisation and reduction of technical debt

Collaborating with architects, DevOps Engineers, testers and other development teams

Working effectively across organisational and supplier boundaries


What we're looking for

You have:


Strong professional software development experience

Professional Java experience

Experience with Spring and preferably Spring Boot

Strong experience with JavaScript and/or TypeScript

Experience developing REST APIs and integrations

Experience with SQL and relational databases

Experience with modern frontend frameworks

Experience with Git and modern development workflows

Experience with automated testing

Understanding of CI/CD and modern software delivery

Experience from complex enterprise environments


Experience with Docker, Kubernetes, Kafka, messaging, Jenkins, Azure DevOps or Infrastructure as Code is an advantage.

Experience from digital healthcare is highly valued. We are particularly interested in developers who have worked with national healthcare solutions, healthcare integrations, healthcare data or other critical systems within the Danish healthcare sector.

Experience from complex public sector systems and multi-supplier delivery environments is also valuable.

Fluent Danish, both written and spoken, is required.

You must be able to work onsite at the customer location in Copenhagen when required, which may include five days per week.

What we offer

At Twoday, you'll join one of the leading technology consultancies in the Nordics. You will be permanently employed by Twoday and work on long-term, business-critical customer engagements while remaining part of our professional engineering community.

We offer challenging projects, strong technical communities, continuous professional development and the opportunity to work with solutions that have significant societal impact.

You will join Twoday as a permanent employee and become part of a strong professional community across software engineering, architecture, cloud and data.

You'll work on long-term, business-critical customer engagements while continuing to develop your expertise within Twoday's engineering community.

About Twoday

Twoday operates from modern offices across 30 locations in Norway, Sweden, Denmark, Finland, and Lithuania. We have a strong and unique social environment with highly engaged employees. If you are the candidate we are looking for, you will play a central role with exciting opportunities to grow within an international and innovative group, working on cutting-edge technology and software solutions. You will also have the flexibility to occasionally work from one of our main offices in Oslo, Stockholm, Copenhagen, Helsinki or Vilnius.

Diversity & inclusion

Do you not meet all the requirements? Studies show that women and minorities are less likely to apply for a job if they don’t meet every qualification. At Twoday, we are committed to building a workplace and community where everyone is welcome. If you are excited about this role but your previous experience doesn’t perfectly align with the job description, we still encourage you to apply.

Department

Digital Engineering

Lokationer

København, Pakhus 47

Apply here

Digital Engineering

·

København, Pakhus 47

Full Stack Developer - Java & Modern Frontend
With close to 3,000 employees, we are one of the largest tech consulting companies in the Nordics. To put it simply, we help people create value in the complex landscape of digital transformation.

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