Senior Backend Developer

You will work on designing and delivering a digital solution that will ensure the discharge of hazardous substances into the Danish waters are in accordance with environmental quality requirements. You will be doing a difference for a cleaner Denmark.You will be part of a collaborative and international team of developers, product owners, UX’ers, and domain experts, working closely together, based onsite in Denmark)The main responsibilities and challenges in the job are:Design, develop a backend applications using.NET technologies (you will be the lead developer through out the project)Contribute to architecture and technical design of the solutionBuild and optimize REST APIs and microservicesEnsure high software quality through testing, code reviews, and best practicesTroubleshoot and resolve performance and stability issuesCollaborate closely with local and international colleagues across disciplinesContribute to technical documentation and knowledge sharingSupport continuous improvement of development processes and toolsQualifications and personal skills We are looking for a new colleague who will join us in developing digital solutions for water and environmental challenges and who has the following qualifications:Required:Minimum 6–8 years of experience in backend development Strong expertise in C#, .NET, and ASP.NET CoreExperience with: REST APIs and microservices architectureSQL and database design/optimizationORM frameworks (e.g. Entity Framework Core)Unit and integration testingGitHubworking in Agile/Scrum environments Solid understanding ofSoftware architecture and design principlesPerformance, scalability, and memory managementGood communication skills in English (written and spoken) Ability to document technical solutions clearlyNice to have:Experience with: Event-driven architectures (e.g. RabbitMQ, MediatR)Real-time applications (e.g. SignalR)Containerization (Docker, Kubernetes)Cloud platforms (e.g. Azure)CI/CD pipelines and DevOps practicesHands-on experience using AI agents in software development tasks such as code generation, testing, and CI/CD workflows.Familiarity with: External API integrationsSpatial data (GIS tools such as PostGIS or QGIS)Experience with scripting (PowerShell, Python)Personal skillsSelf-motivated and proactiveStrong collaboration and communication skillsStructured and quality-orientedSolution-minded with a focus on delivering valueWe offerTo work at DHI means being part of an organization that contributes to solving some of the world’s most important challenges within water and environment.A senior role with technical influence and responsibility for 9 monthsA team of highly skilled and motivated colleaguesOpportunity to work in an international and collaborative environmentFlexible working conditions, possibility to work from home 2 days a week.A unique chance to contribute to solutions with real-world environmental impactOffice locationYou will be located in our office in Hørsholm, Denmark, with close collaboration with international colleagues.How to apply Please submit your application including CV via the relevant job posting on DHI’s website:http://www.dhigroup.com/careers Deadline for application: 5 June 2026For further information, please contact: Louise Mærsk, mail: lorm@dhigroup.com, mobile: +45 61 33 51 33. Apply Share in your network Deadline: Expected start date: 01/08/2026 Expected start date: as soon as possible Contact person: Louise Rosenberg Maersk lorm@dhigroup.com Position type: Full time City: Hørsholm Country: Denmark Job type: Software development and IT DHI are the first people you should call when you have a tough challenge to solve in a water environment – be it a river, a reservoir, an ocean, a coastline, within a city or a factory.

For more information please visit www.dhigroup.com DHI A/S Agern Alle 5 2970 Hørsholm Denmark hr-support@dhigroup.com Powered by Emply