Sitecore Developer (.NET)

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
Sitecore Developer (.NET)
Are you an experienced Sitecore developer who enjoys being close to the code and turning business needs into reliable digital solutions? Twoday is looking for a hands-on developer for a business-critical assignment with a large Danish public-sector organisation.
You will be permanently employed by Twoday, with your first assignment carried out full-time on-site at the client’s offices in Copenhagen.
The role
You will join a development team responsible for maintaining, improving and further developing the client’s Sitecore-based solutions. Your focus will be practical software delivery: writing code, troubleshooting, implementing integrations and ensuring that solutions perform reliably in production.
You may contribute to technical decisions and solution design, but this is primarily a hands-on development role rather than a pure architecture position.
Your responsibilities will include:
Developing and maintaining solutions in Sitecore and C#/.NET
Implementing new functionality and improving existing solutions
Building and maintaining integrations and APIs
Troubleshooting defects and resolving technical issues
Contributing to testing, code quality, documentation and deployment
Collaborating closely with developers, testers and business stakeholders
Your background
We expect you to have:
Solid professional experience with Sitecore development
Strong hands-on skills in C# and .NET
Experience with integrations, APIs and web-based solutions
The ability to understand and work confidently in an existing solution landscape
A structured approach to quality, maintainability and documentation
The confidence to take responsibility for tasks from clarification through to implementation
An open and pragmatic approach to using AI-assisted development tools where relevant
Experience with Sitecore upgrades, deployment, performance optimisation or complex public-sector solutions would be an advantage.
Fluency in spoken and written Danish is essential, as daily collaboration and documentation take place in Danish. You must also be able and willing to work full-time on-site 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.
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.

Work arrangement
No