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Software & System Engineer

Posted 18 Aug 2026
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Work experience
0 to 5 years
Full-time / part-time
Full-time
Job function
Salary
€3,700 - €4,200 per month
Degree level
Required language
English (Fluent)
Deadline
31 August 2026

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Join TNO as a Software & System Engineer in The Hague and contribute to the development of advanced sonar applications for the latest naval vessels.

About this position

TNO is a leading research and technology organization dedicated to innovation in defence and security. Our Acoustics and Underwater Warfare department develops advanced sonar and software solutions to strengthen the capabilities of the Royal Netherlands Navy. In today’s unpredictable geopolitical environment, your work is vital to protecting our society. By developing reliable and advanced software, you contribute directly to national security and the success of defence operations. This is meaningful work that delivers solutions to urgent challenges. Would you like to help protect our fleet against underwater threats such as torpedoes and drones? Then this role is an excellent opportunity.

What will be your role?

As a Software & System Engineer, you will work within a motivated team to develop sonar applications for use on board naval ships. You will translate research results into robust C++ software, support the modernization of the Dutch fleet, and collaborate closely with Navy software engineers. Strict quality standards and extensive testing are key aspects of this role.

Your responsibilities include:

  • Developing and enhancing C++ software for naval frigates.
  • Collaborating with researchers and Navy engineers.
  • Ensuring software is maintainable and well documented.

What we expect from you

  • A completed Master’s degree in Computer Science, Applied Mathematics, Physics, or a related field.
  • Experience with C++ and configuration management.
  • Affinity with software testing and signal processing.
  • Strong communication skills and a structured way of working.

What you'll get in return

Challenging and varied work with a real impact. At TNO, you are in charge of shaping your career, and you will be given every opportunity to develop yourself.

TNO offers optional employee benefits, enabling you to tailor your benefits package to match your personal situation. You may also expect:

  • An extremely professional, innovative working environment where colleagues are leading experts in their field.
  • The opportunity to attend courses, workshops and conferences, and to receive training and coaching based on your needs.
  • 33 days annual leave plus a flexible holiday that can be used on a cultural, religious, or otherwise important day of your choosing (on a full-time basis).
  • A comprehensive and flexible mobility plan that also includes full compensation for public transportation for commuting and business travel.
  • Great social events with your team and other colleagues.
  • Flexible working hours, the possibility to work parttime (32 or 36 hours) and the possibility of working from home.
  • Extensive relocation package for international candidates.
  • A good pension scheme.

TNO as an employer

Our people are at the heart of TNO. Their curiosity, expertise and entrepreneurial mindset make it possible to deliver high-impact research and innovations that contribute to society’s sustainable wellbeing and prosperity.

Your talent and ambition have every opportunity to flourish at TNO. You work with experts both within and beyond TNO, have access to advanced technology and the freedom to explore, experiment and innovate. Our strength lies in independence, reliability and collaboration. We are driven to push boundaries. By working with businesses and government, and by connecting different perspectives, we strengthen our innovative capability and create responsible, meaningful results.

At TNO, we believe this is our time to help society, government and business move forward faster. Together with driven colleagues, you turn knowledge into concrete innovations or ventures that truly make a difference by combining the power of science and entrepreneurship.

As you will be working for clients in the domain of defence and security, a Certificate of No Objection issued by AIVD (the Dutch General Intelligence and Security Service) is mandatory. This means you will have to undergo a security screening.

Innovation with purpose: that is what TNO stands for. We develop knowledge not for its own sake, but for practical application. TNO connects people and knowledge to create innovations that boost the competitive strength of industry and the well-being of society in a sustainable way.

Management Consulting
Den Haag
3,300 employees