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System Administrator

Posted 17 Nov 2025
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Work experience
2 to 10 years
Full-time / part-time
Full-time
Job function
Degree level
Required language
English (Fluent)

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We are currently looking for a System Administrator to join the team in Delft.

“A good sysadmin is somebody who automates their own job away"

S[&T] is a hi-tech company located in Delft that has been realising specialised software projects, services, and consultancy for (amongst others) the space industry for over twenty-five years.

Our three-person IRS (IT, Resources, and Security) team supports about 100 users in their day-to-day activities. Our userbase is growing fast, and with that comes the need to strengthen our infrastructure and support team.

We’re looking for a System Administrator with a broad range of skills and interests — someone who enjoys solving technical puzzles, improving systems, and keeping things running smoothly behind the scenes.

Main responsibilities

A bit about our setup

We have a heterogeneous environment, meaning there’s always something interesting to work on:

  • Linux servers, and a mix of Linux / Windows / macOS laptops.
  • A combination of local, co-located, and cloud servers.
  • Extensive use of Docker containerisation across our infrastructure.
  • Microsoft 365 for collaboration and document sharing.
  • A variety of self-hosted services including Firewall/ switches/ WiFi, DHCP/DNS, printers, GitLab, NextCloud, Mantis, Redmine, Jenkins, Grafana, Matomo dashboards, and more.

We also support and advise internal project teams, each with their own specific hardware, software, and security needs. S[&T] is ISO9001 and ISO27001 certified, so information security is a top priority in everything we do.

You’ll be hands-on with things like:

  • Onboarding and offboarding colleagues and their hardware.
  • Maintaining and monitoring our machines, networks, and licenses.
  • Providing first-line support — from fixing issues to setting up new workspaces.

And you’ll have a say in the bigger picture:

  • Structurally addressing security concerns.
  • (Re)designing our network architecture for better performance and security.
  • Improving our helpdesk setup and efficiency.
  • Developing tools and processes to automate workflows, monitoring, and alerting.
  • Keeping up-to-date with new technologies, trends, and security advisories.

Requirements

We’d love to find someone who:

  • Communicates clearly in English — written and spoken — and actually enjoys helping people.
  • We aim to be an IT team that others feel comfortable approaching, not one they avoid!
  • Is confident working with Linux-based systems, and can write scripts or small tools to make everyday tasks more efficient.
  • Has some experience (or willingness to learn) Windows, macOS, or M365 administration — versatility is more important than knowing everything upfront.
  • Scripting knowledge or affinity would be a big plus!

What we offer

A friendly and collaborative team where you can have a real impact. We value people who take initiative, enjoy learning, and care about doing things the right way — both technically and professionally.

Apply by sending your CV and motivational letter directly to recruitment@stcorp.nl.

Sensing problems. Developing solutions.
Our Sensing and Control Systems provide new insights and access to what is happening in harsh environments. Scientific Data Processing ensures that you get the most out of the world's most under-utilized precious resource: data. We can then turn that data into smart decisions with our Intelligent Software Applications. Or if you need on-site support, we have…


Sensing problems. Developing solutions.
Our Sensing and Control Systems provide new insights and access to what is happening in harsh environments. Scientific Data Processing ensures that you get the most out of the world's most under-utilized precious resource: data. We can then turn that data into smart decisions with our Intelligent Software Applications. Or if you need on-site support, we have the brightest minds and greatest people in Technical Consulting for R&D.

Taking the R&D Journey Together
Research and development projects are usually long-term investments in complex systems involving stringent requirements, formalized relationship structures and interfaces, and highly impactful project phases and team scaling. It is important to have an experienced partner that is in it for the long haul. At S[&]T, we are relationship driven, and think not only about the first steps toward partnership, but the long-term win-win-win. We have flexible methods of partnering, and are able to support R&D via projects, personnel and products, depending on which method provides the best solution. Our open communication style and people-driven methods create smooth interfaces and ensure that we are a dependable partner through thick and thin.

Meant to be at S[&]T
At S[&]T, relationships always come first, and we treat our employees like we would like to be treated. We understand that smart people need flexibility, challenging projects, open communication and a motivating career path. If you would like to choose your own adventure when it comes to building a role that is right for you, we are here to support you along the way. Our flat structure and direct connections in a variety of R&D settings provides you with plenty of opportunity, while we also work hard to ensure that we create a fun environment along the way.

Aerospace & Defence
Delft
150 employees