Frontend or Full Stack .NET Developer

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

Frontend Developer with .NET Experience

Would you like to build intuitive, reliable digital solutions that support an important area of the Danish public sector? Twoday is looking for an experienced frontend developer who is also comfortable contributing across the full technology stack.

You will join an established development team working on business-critical solutions used by professional users. Your primary focus will be frontend development, but you will also contribute to the .NET backend when needed.

Your responsibilities

• Develop and maintain modern web applications using Angular and TypeScript

• Translate complex requirements into intuitive and accessible user experiences

• Contribute to backend development in C# and .NET

• Develop and integrate REST APIs

• Write automated tests and ensure high code quality

• Participate in code reviews, technical discussions and solution design

• Collaborate closely with developers, testers and business stakeholders

• Contribute to CI/CD pipelines and continuous improvement of development practices

Your background

• Strong professional experience with Angular and TypeScript

• Solid experience with C# and .NET

• A frontend-first full-stack profile

• Experience with REST APIs and automated testing

• Familiarity with Azure DevOps, Azure Pipelines and YAML

• Experience with OpenAPI and Dapper is an advantage

• Experience from complex enterprise or public-sector solutions is an advantage

• Fluent spoken and written Danish

• Able to work full-time onsite in Copenhagen

What we offer

At Twoday, you will become part of a strong professional environment where knowledge sharing, collaboration and technical quality are central. You will work on meaningful digital solutions while developing your skills alongside experienced colleagues.

The position is a permanent role at Twoday, working full-time onsite with one of our public-sector customers in Copenhagen.

Interested? We look forward to receiving your application.

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.