Software System Engineer

About this position

Develop software to predict the performance of the latest sonar systems? Plan and evaluate operations with underwater drones? Join TNO as a software engineer.

Since the invasion of Ukraine, the geopolitical situation has become more unpredictable than ever and requires rapid innovation. TNO plays a key role as a knowledge institute for Defence & Security, with more than a thousand specialists working on national and European security.

The Acoustics and Underwater Warfare division brings together acoustic expertise and mainly works for the Royal Netherlands Navy. The Underwater Operations & Seabed Security department focuses on research into autonomous underwater systems, for example for mine detection using drones, anti-submarine warfare and protection of critical infrastructure. We develop advanced acoustic sensors and data processing for situational awareness, and model performance against underwater threats under different conditions.

What will be your role?

As a Software System Engineer, you work in multiple research and development projects to develop solutions for our clients. You collaborate with highly motivated software engineers and scientists. Where needed, you take the lead in designing and developing software tools. No two projects are the same, so there are plenty of opportunities to further develop yourself.

Your activities include:

• Developing software for demonstrators at sea to validate new technologies.
• Leading (sub)teams of software engineers and participating as a team member in projects.
• Consulting with scientists to translate their ideas into demonstrators.
• Writing software documentation and test reports.
• Stimulating collaboration with colleagues.

If you believe you can help us further develop in these areas and are looking for a role that contributes to society, offers variety, and challenges you as a scientist, then this is the right place for you.

What we expect from you

Develop software to predict the performance of the latest sonar systems? Plan and evaluate operations with underwater drones? Join TNO as a software engineer.

Since the invasion of Ukraine, the geopolitical situation has become more unpredictable than ever and requires rapid innovation. TNO plays a key role as a knowledge institute for Defence & Security, with more than a thousand specialists working on national and European security.

The Acoustics and Underwater Warfare division brings together acoustic expertise and mainly works for the Royal Netherlands Navy. The Underwater Operations & Seabed Security department focuses on research into autonomous underwater systems, for example for mine detection using drones, anti-submarine warfare and protection of critical infrastructure. We develop advanced acoustic sensors and data processing for situational awareness and model performance against underwater threats under different conditions.

What you'll get in return

Challenging and varied work with a real impact. And plenty of opportunities as, at TNO, you are in charge of shaping your career. We offer a gross monthly salary between € 4,600 and € 7,000 (based on your knowledge and experience), 8% holiday pay, a 13^th month bonus of 8.33% and a flex budget (5.58% + € 180). In addition, 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).
• An employer working towards a respectful, inclusive, and equitable work environment where every employee can flourish, with various initiatives such as Jong TNO, numerous expertise based guilds, Rainbow Community and Round Tables on diverse inclusion topics.
• We offer 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 TNO colleagues. That’s how you will get to know a lot of people really quickly.
• 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.

Read more about tailoring your benefits package.

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. That is why we invest in an inspiring and inclusive working environment where colleagues can excel, have autonomy and continue to grow.

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 find each other in wonder and ingenuity. 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. And in doing so, you make your mark on our time.

The selection process

Please apply before the 26th of July, 2026. The selection process comprises two interview rounds. The preliminary interview takes place on the 30th of July, 2026. The second interview round has been scheduled for the 6th of August, 2026. In a final meeting we will discuss the terms of employment and your tailored benefits package. We aim to finalize the entire process within four weeks.

The selection process may include an online assessment and a reference check.

A certificate of Conduct (VOG) is required before starting a new job at TNO.

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. Read more about security screening.