About Me

I'm Marcel, a 28 year old IT Engineer in the Mission Critical field.

My passion for technology started at a young age, I still remember opening up my first computer at 10 years old and the VCR wasn't safe either! Over the years, I've tried to expand my skills and developed an understanding of various IT things, including system administration, network management, and cloud computing.

Professionally, I thrive in dynamic environments where I can apply my technical expertise to solve complex problems. And I enjoy collaborating with teams to design and implementing various IT solutions.

When I'm not glued to my homelab, I enjoy spending time outdoors, exploring nature trails, or lose myself into Fantasy novels or random Manhwa's (Often Isekai's haha) and of course taking photographs of the beautiful landscapes I encounter while traveling.

I would classify myself as a Jack of all trades. But I don't agree with the old saying "Jack of all trades, master of none." and rather say "Jack of all trades, master of none, though oftentimes better than a master of one."

I also love to do the odd IT jobs around me like setting up the camera system of the restaurant at the Train station or even setup the POS system, Sound system, CCTV and networking at another local restaurant.

One of my great friends made the avatar which I hide behind online, So check out their work! and many thanks for it, I still love it after so long.

Picture of Marcel Haazen

Education Experience


  • University of Applied Sciences Utrecht

    Bachelor of Science (BSc) in Cyber Security and Cloud engineering.
    Specializations: Cloud Engineering, Cyber Security, IT Management.
    Graduation: Did not finish due to personal reasons. but did get an Propaedeutic Certificate as proof of academic capabilities.

  • Koning Willem I College

    Secondary Vocational Education (MBO4) in IT Management.
    Specializations: IT Management, Network Management.
    Graduation: July 2019.

  • ROC Ter AA

    Secondary Vocational Education (MBO3) in IT Systems and Devices.
    Specializations: System and Network Administration.
    Graduation: July 2016.

Work Experience


  • Mission Critical Engineer

    Conclusion Mission Critical, 2023 - Present
    Responsibilities:
    - Design, implement and maintain customer IT environments.
    - Troubleshoot and resolve complex technical issues.
    - Collaborate with cross-functional teams to ensure optimal system performance.
    Systems used: Linux (RHEL 8), Windows Server, VMware, Cisco Networking, Fortigate Networking, postfix/exim mail systems.

  • Junior System Engineer

    Orange Business Services (Basefarm), 2022 - 2023
    Responsibilities:
    - Manage customer IT environments including PCI-DSS compliant environments.
    - Monitor systems and respond to incidents.
    - Perform routine maintenance and updates.
    Systems used: Linux (RHEL 7), Windows Server, Cisco ASA, F5 Load Balancer.

  • Trainee Unix System Administrator

    Simac IT NL, 2019 - 2022
    Responsibilities:
    - Manage customer IT environments.
    - Monitor systems and respond to incidents.
    - Perform routine maintenance and updates.
    - Automation of tasks using shell scripting and Ansible.
    - Laid groundwork for the new monitoring system based on NetXMS.
    Systems used: Linux (RHEL 7, SLES, CentOS, Ubuntu), AIX, Windows Server.

  • For any Experience older than this I would recommend checking my LinkedIn profile.