Onsite IT Support Specialist - Petten & Utrecht

About this position

At TNO, researchers and experts work on innovations that make the Netherlands safer, healthier, more sustainable and more digital. A reliable and secure IT environment is essential to this work. Within Information Services, we support colleagues across our various locations and ensure they can make optimal use of our IT services and solutions.

As an Onsite IT Support Specialist, you are one of the faces of Information Services in The Hague. You support users through the service desk, resolve IT issues on site and have the opportunity to develop specialist knowledge in other IT domains. This gives you a role that combines daily interaction with users with the opportunity to deepen your technical expertise in a secure and technically challenging environment.

What will be your role?

You support researchers and other TNO employees in using IT products and services. Your main focus is on service desk and onsite support, with the opportunity to specialise in additional IT domains. These may include Microsoft 365, SharePoint, ALM, Linux, workplace services or other IT platforms used within TNO. Together, we will determine which specialisation best matches your profile and the needs of the team.

Your day-to-day responsibilities include:

• Resolving incidents and service requests via phone, email and tickets.
• Installing, configuring and replacing workplace equipment, hardware and software.
• Supporting users at various TNO locations in the Utrecht and Petten regions.
• Handling Tier 2 incidents within your specialist domains.
• Documenting changes, procedures and knowledge articles.
• Collaborating with specialists and DevOps teams to implement structural improvements.

What we expect from you

You are service-oriented, work in a structured way and feel comfortable in an environment where information security, accuracy and responsibility are essential. You connect easily with others and have a growth mindset.

You bring:

• MBO level 4 vocational working and thinking level in an IT-related field.
• Experience in a service desk, workplace management or IT support role.
• Good communication skills in both Dutch and English.
• A precise way of working and an awareness of the potential impact of errors in a secure IT environment.
• The ability to follow procedures accurately and document your work correctly.
• An interest in IT management, applications or IT security and the motivation to further develop your expertise.
• A category B driving licence.
• Willingness to work at different TNO locations in the region.
• Willingness and ability to obtain an A/B security clearance (Verklaring van Geen Bezwaar) from the Dutch General Intelligence and Security Service (AIVD).
• An affinity with IT platforms and IT security.

Nice to have

• Experience working within a larger organisation where information security plays an important role.
• Experience with Microsoft 365, SharePoint, Linux, ALM or similar applications and platforms.
• Experience working according to established procedures, security guidelines and quality standards.

What you can develop with us

Previous experience or specialisation is not required. What matters more to us is your interest in these and other IT knowledge domains and your motivation to further develop your expertise. At TNO, you will have the opportunity to build specialist knowledge in:

• Microsoft 365, SharePoint, ALM, Linux and other platforms used within TNO.
• Working in secure and high-security environments.
• Tier 2 support within specialist IT domains.

What you'll get in return

Challenging and varied work with real impact. And plenty of opportunities to grow, because at TNO you largely shape your own career path. In addition to a gross monthly salary (based on a full-time, 40-hour work week) ranging from € 2,800 to € 4.000, depending on your knowledge and experience, you will receive a 13th-month allowance (8.33%) and a flex budget (5.58% + € 180 per month). Both the 13th-month allowance and the flex budget can be paid out monthly. As a result, your total monthly compensation can range from approximately € 3,250 to € 4,600. You'll also receive holiday allowance and have every opportunity to further develop yourself, both professionally and personally.

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).
• 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 27th of October, 2026. The selection process comprises two interview rounds. 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.

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.