Hi, I’m Martien de Kleijn

A Hands-on IT professional with a passion for optimizing systems, solving problems, and getting things done. Based in Rotterdam, available for freelance projects.

Here’s a bunch of companies I’ve helped along the way:

Hi, I'm Martien de Kleijn

What I Love Doing

I thrive on tackling complex IT challenges and making a real impact for clients. My passion lies in streamlining systems, driving automation, and helping organizations transform their digital environments. Here’s what gets me excited every day:

Migrations

Migrating, upgrading, and optimizing IT infrastructure—on-premises and in the cloud

Automation

Automating routine tasks with tools like PowerShell, Ansible, and SCCM.

Troubleshooting

Troubleshooting tough technical issues and finding creative, lasting solutions.

Projects

Leading or supporting challenging projects (migrations, upgrades, rollouts)

Mentoring

Mentoring colleagues, sharing knowledge, and improving team processes

Helping

Helping organizations improve efficiency, security, and reliability through smart IT choices.

Stuck with an IT challenge or planning your next big project?

Let’s team up and get it sorted—get in touch!

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