Software Engineer, C#, Self Protection Mission, Lystrup

Requisition ID 928 - Posted - Lystrup - Denmark - Full Time - Mid-Senior Level

Airborne self-protection systems rely on software prepared, configured, and analyzed before and after flight. The quality of this software directly influences how advanced defense systems perform in practice. In this role, you will help design, build, and improve the mission software behind it. Come and join us!

We are expanding and strengthening our capabilities in defense and aerospace, developing advanced mission-critical systems used on land, at sea, and in the air. As complexity increases, so does the need for robust, well-engineered software. This is part of Terma’s overall purpose – securing people through advanced technology.

Your role in our team

As our new software Engineer, you will develop and maintain mission software with long service-lives, supporting configuration, analysis, and verification of airborne self-protection systems. Your work spans the full software lifecycle – from design and implementation to testing, deployment, and long-term evolution.

In this role, you will collaborate closely with Systems Engineers, architects, testers, and domain specialists who represent product and user needs. Working in an agile and iterative way, you help qualify and challenge how solutions are implemented, bringing technical judgement and practical experience where it adds value, with a strong focus on correctness, traceability, and operational reliability.

You will become part of the Self Protection Mission software team within Terma’s Defense Air organization, working on mission-level systems used throughout the lifecycle of airborne operations. The team combines experienced engineers and early-career colleagues, with strong domain knowledge and a culture of mutual support, shared responsibility, and pride in the work. We approach our systems with professionalism and responsibility, while recognizing that thoughtful judgement, transparent dialogue, and a healthy sense of humor are essential to building resilient teams and robust software.

How you will make a meaningful contribution

You will work on software with clear requirements for correctness, stability, and traceability. Typical challenges include:

• Designing, implementing, and maintaining C#-based mission software
• Supporting configuration and analysis workflows used before and after flight
• Working with domain-specific rules and system behavior rather than ad-hoc logic
• Ensuring quality through structured testing, documentation, and compliance
• Develop reliable software used in operational and mission-critical contexts
• Take ownership appropriate to your experience, from understanding domain needs to seeing solutions deployed
• Contribute to technical quality, continuous improvement, and knowledge sharing

Our tool chain is pragmatic and proven rather than bleeding-edge. Modernization is an active focus area, supported by a deliberate effort to strengthen technical leadership across the organization.

Bring your world class expertise into play

You are fluent in English both in writing and verbal at a professional level. Danish is an advantage but not a requirement. Moreover, we are also looking for a new colleague with the following qualifications:

• You hold a bachelor´s or Master´s degree in Computer Science, Software Engineering or another relevant technical field.
• Experience with C# and the .NET application platform, and an interest in building robust, maintainable solutions
• Willingness to broaden your skill set across areas such as DevOps, APIs, UX, testing, performance, and design practices
• Experience working on complex systems, or an interest in growing into that space

As a person, you collaborate effectively with others and contribute positively to teams that share knowledge and take collective responsibility for complex systems. You are curious and confident in asking relevant questions, and you value open, honest dialogue. You take pride in delivering reliable solutions that work in practice and approach your work with sound judgement and professionalism. At the same time, you maintain a willingness to learn and bring a constructive attitude that supports strong collaboration and high-quality results.

Terma is an international high-tech company developing advanced systems for defense and security. We work with complex technologies in long-lived products and value technical depth, collaboration, and long-term responsibility. We offer strong professional communities and room to grow, both technically and personally.

When joining Terma, we promise that you will experience: Great people, challenging tasks, world-class expertise, and meaningful contribution in your daily work.

Benefits at Terma


At Terma, we prioritize the well-being of our employees, ensuring they are well taken care of. Joining our team comes with a multitude of perks designed to enhance your social life, cultural experiences, and health.

International Environment: Explore great teamwork and professional sparring with colleagues around the world.

Flexible Working Hours: Enjoy the opportunity to work flexibly and the option to work from home up to two days per week. Internet connection at home is paid for by Terma.

Comprehensive Benefits Package: Receive a 10% paid pension along with a beneficial health care and insurance package. Enjoy discounts from various business partners.

Well-being Perks: Opportunity to enroll in our on-site massage-offer at our locations in Denmark.

Social and Professional Events: We have an active staff association that arranges a variety of social activities and events to bring all of our colleagues together.

Competence networking across professional experts in Terma: Professional presentations and knowledge sharing across the organization.

We are dedicated to fostering a diverse, equitable, inclusive, and welcoming workplace. Our commitment to DEIB (Diversity, Equity, Inclusion, and Belonging) means we actively value and celebrate unique backgrounds, perspectives, and experiences. We strive to create an environment where all employees have equal opportunities to succeed, feel respected and valued, and experience a true sense of belonging.

To support an unbiased evaluation process, we kindly encourage applicants to omit personal details such as photos and age from their applications.

If you would like to take on the challenge of working in an innovative company, we look forward to receiving your application. A resume is required, while a cover letter is optional. To ensure that your application will reach us and is properly processed, we only accept applications via . Applications will be processed continuously.

Do you have any questions regarding the position?

Feel free to contact Hiring Manager on e-mail: Se e-mailadresse på jobbank.dk

Bear in mind, that we need you to confirm that you can obtain a security clearance by the Danish Defense Intelligence Service, and that all adults in your household are not posing any risk to the related risk-evaluation. This entails among other issues:

• That you have as a minimum stayed within NATO/EU/MISWG countries for the last 7 years only interrupted by short stays abroad, and
• That you have not committed serious criminal offences

Terma group has headquarters in Denmark and is a high-tech company developing products and systems for defense and non-defense security applications, including command and control systems, radar systems, self-protection systems for aircraft, space technology, and aerostructures for the aircraft industry. TERMA | Allies in innovation