Senior software developer

We are looking for a skilled and experienced software developer with a backend focus to join our R&D team and help us develop and maintain software solutions that support internal and external tools driving our mission: decarbonizing the maritime shipping industry.

In this position, you will have a uniquely close connection to our product – the two-stroke engine – and to the customers we support.

If you want to create innovative solutions and make a real impact, we’d love to hear from you.

You will play an important role in:

• Developing and enhancing scalable web applications using C#, .NET Core, Angular, SQL, and Azure
• Collaborating closely with product owners and cross-functional teams to deliver high-quality software
• Designing modern architectures and optimize system performance, scalability, and security
• Ensuring code quality and maintainability through best practices and coding standards
• Troubleshoot and resolve software defects

You will start by learning our current systems and gaining insight into engine performance. Soon after, you’ll take responsibility for sub-models, supported by colleagues who share approaches, calculations, and requirements. We encourage creativity and give you the opportunity to influence content and feature implementation.

We imagine that you:

• Have experience with object-oriented software development, and a solid understanding of SQL
• Have strong analytical skills and ability to design robust architectures
• An ability to share knowledge, collaborate with colleagues, and contribute to the development of the team
• Have clear communication in English
• Have experience with maintaining and developing C++ applications is an advantage
• Have knowledge of CI/CD pipelines, cloud platforms (Azure or AWS)

What can you expect from us:

You will join a team of 2–3 experienced software developers together with 5 domain experts, working in an informal atmosphere with a pleasant social environment and regular social activities. You will collaborate closely with experienced and knowledgeable colleagues who are eager to share knowledge and learn from you. We work in a collaborative and innovative environment where your ideas matter and your work makes a real difference. You will have great opportunities to grow both personally and professionally, with access to all necessary training to develop your skills for current and future demands.

We support both external and internal customers with new features of varying size and complexity - sometimes with short timelines from idea to product, and other times with longer development cycles.

To get a taste of our external tools, check out: Engine selection guide & CEAS. We also maintain several internal tools supporting engine-related data, and together we take full responsibility for both backend and frontend systems.

Unleash your potential at Everllence

Join us on our journey toward a carbon‑neutral future. At Everllence, you will help shape innovative energy solutions while growing your skills and advancing your career.

We prioritize work-life balance, flexible working hours and remote work options.

We value creativity, diversity, well‑being, and have a wide range of social clubs -from yoga and fishing to creative activities.

In 2027, we will unite our Copenhagen and Holeby locations at a new and modern site in Trekroner, Roskilde.

Build your future with us

Please apply before Sunday, 11th October, 2026. Interviews will be held during the application period.

Questions? You are welcome to contact Jason James Macellaro, Manager of Systems, Simulations and Processes, Denmark at +45 28946278.

Relocating to Denmark? We support you with a mobility package, including help with CPR registration, tax, and work permits.

We aim for a fair and inclusive recruitment process. Regardless of gender, age, religion, disability, or ethnic background, we encourage you to apply. We embrace a global mindset and intercultural environment to ensure a collaborative and inclusive workplace. If you need support, such as assistive tools for dyslexia, we can assist you.

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