Developer - Custom Development

Are you passionate about building custom end-to-end IT solutions? Come be part of our IT organization and work on custom projects which power every part of our business. Join Semco Maritime and help shape the digital backbone of the energy sector with cloud-native software, modern integrations, and disciplined engineering practices.

Your Position

Your position will be developer in Semco Maritime’s IT organization supporting our international organisation. You will work closely with the business to design and deliver valued applications enabling them to optimize and improve processes and continuously improving our digital services.

We work in an agile setup with regular ceremonies to ensure transparency and continuous improvement. You will collaborate with developers in Esbjerg, Denmark, and colleagues around the globe. We offer opportunities for career development and mentoring, individual development plans, and regular knowledge-sharing.

Your place of work will be at our Global HQ located in Esbjerg, the hub of the Danish energy industry, right on the waterfront - views do not get any better than this. The position is full-time, and you can expect to travel up to ten days per year. 

Your Tasks & Responsibilities

• Design, build, and operate full-stack, cloud-native solutions on Microsoft Azure using .NET (C#) and modern front-end technologies.
• Take ownership of solutions end-to-end, from requirements to deployment and operation.
• Develop secure, API-based integrations and apply modern architecture and security best practices.
• Ensure high quality through automated testing, code reviews, and CI/CD pipelines.
• Collaborate closely with the team and leverage AI where it creates measurable value.
• And of course, we work with AI to enhance our solutions where it adds value.

Your Profile & Qualifications

You enjoy solving complex problems with a structured and quality-focused approach. You value secure coding, good documentation, and taking ownership of your work in an agile setup.

• 3–5+ years of experience in full-stack development.
• Strong back-end experience with .NET (C#), ASP.NET Core, and front-end experience like React/TypeScript.
• Attention to detail and commitment to delivering high-quality solutions on time.
• Analytical mindset in development tasks.
• Fluent in Danish and English.

Welcome to Semco Maritime

At Semco Maritime, we create change. For people. For projects. And for the global energy sector. With us, you will join a community of over 2,300 of the most dedicated thinkers and doers in the energy industry who are driving real change and making their own personal mark on the global energy landscape.

While everyone knows why the energy transition is vital, we are concerned with the journey. How to get there. By providing the answers needed to make change real. Because we believe that global energy ambitions can only be realized through hard work and clever pragmatic solutions. This is what we do. This is what we invite you to participate in.

Safety is at the core of everything we do, and we are committed to protecting our people, partners, and the planet as we work towards a sustainable energy future.

So yes, working for us will change the energy sector – and may well change you too. 

Care to join the movement? 

Change. With us.

Apply as soon as possible via our career page. For questions, contact Johnny Christensen, Manager, Custom Development at +45 42 65 90 62.