Developer - Custom Development
Semco Maritime
Company Overview
Semco Maritime A/S
Esbjerg, Denmark
1888
Approximately 1,300 employees and a revenue of $296.6 million in 2023 (source: zoominfo.com).
What They Do
Semco Maritime focuses on engineering, construction, and services in both conventional energy, including oil and gas, as well as renewable energy, particularly offshore wind. The company offers specialized solutions such as wind farms, fire suppression systems, telecommunications/IT, and mobilization services. Additionally, they provide engineering studies, projects, installation/commissioning, as well as maintenance and decommissioning of offshore assets, making them a versatile player in the energy sector (source: europeanjobdays.eu). Semco Maritime serves global energy markets and has a geographical presence in Denmark, the UK, Norway, Vietnam, Singapore, Montenegro, West Africa, and the North Sea (source: cbinsights.com). Their products and components support offshore assets, including electrical installations and valve maintenance, and they utilize a portable concept called "shipyard in a box" for flexible setups at customer locations (source: zoominfo.com).
Projects & References
Semco Maritime has completed a number of notable projects, including upgrades of drilling rigs and offshore work in Denmark, Norway, the UK, Singapore, Montenegro, and West Africa over the past 30 years. Among the ongoing major projects is the Mayflower Wind project in the USA, which commenced in January 2020 and is the company's largest order to date (source: semcomaritime.com). The company has also secured important contracts with clients such as TotalEnergies, including a 5-year contract for labor and construction services on Danish North Sea installations (source: zoominfo.com).
Recent Developments
In the past two years, Semco Maritime has secured a 5-year contract with TotalEnergies for Danish North Sea installations, which took effect in November 2022 (source: zoominfo.com). On April 12, 2023, they entered into a strategic partnership with BlueNord ASA, supporting a license application for the Elly-Luke gas field in the Danish North Sea (source: zoominfo.com). Furthermore, David C. Hutchinson was appointed as CEO and UK Country Head for Semco Maritime Ltd. on October 13, 2022, based in Aberdeen to drive growth in the UK (source: zoominfo.com).
Working There
Semco Maritime offers a wide range of roles in project management, engineering, design, construction, service, and maintenance. They have recently advertised positions in the UK, including Service Coordinator and Senior Planning Engineer, indicating active recruitment in Grimsby as well as likely in Esbjerg and Aberdeen (source: europeanjobdays.eu). The company culture emphasizes a cohesive team of highly skilled individuals working in a non-hierarchical environment, providing employees with freedom and responsibility (source: europeanjobdays.eu). Specific benefits are not documented in the available sources.
Last updated on Feb 23, 2026 | Report an issue
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.
Apply now
Job expired?Please let Semco Maritime know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
Apply now
Job expired?Please let Semco Maritime know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
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About the role
April 9, 2026
Full time
Company
- Esbjerg, Denmark
3-5+ years of experience
UTC+01:00
