Career Profile

I am a passionate Security Engineer and Linux Administrator with extensive all-round knowledge of Linux, Security and Networks. My passion lies in particular with Open Source, Cloud solutions, High Availability solutions and Security. I have gained relevant work experience in the roles of Linux System Administrator, Technical Specialist, Architect and Security Engineer. With my experience within complex working environments and my unprecedented interest in new techniques, I will not shy away from a challenge.


Mavo D

1990 - 1995

RedHat Certified Engineer (RHEL7)


ITIL Foundation





Lead Security Developer / Security Engineer

January 2022 - current

Describe your role here lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem. Nulla consequat massa quis enim. Donec pede justo. Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo.

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Area Product Owner / Lead Engineer

November 2020 - December 2021
SSC Campus RIVM and KNMI (contracted)

Product Area Owner and Senior Engineer of the Specific Hosting team of SSC Campus. The specific hosting team is, among other things, responsible for the hosting services and One of the major projects of Specific Hosting is the National Vaccination Program with the associated Covid 19 vaccination registration.

PHP Developer / Senior Engineer

July 2019 - November 2020
Undisclosed due to NDA (contracted)

Sorry, I cannot disclose information about the exact nature of my work or my daily life at this client. It is closely related to Public Key Infrastructure, data encryption and highly secure computing environments.

Senior Engineer

May 2017 - June 2019

In this position, I was part of a team of 3 people who were responsible for managing approximately 500 physical hosting servers, 3500 virtual machines and a 5 petabyte offsite backup platform. I developed the so-called ‘autobackup’ platform, which is created on the basis of ZFS on a FreeBSD platform, web servers sync their data here at intervals and ZFS takes care of archiving. The hosting servers require a 24/7 99.995% uptime and run in a high availability cluster environment with 24/7 monitoring and surveillance.

Senior Engineer

January 2017 - May 2017
Liberty Global B.V. (contracted)

At Liberty Global, I was part of a team of 9 people, that was responsible for designing and building the Operational Data Hub (ODH), part of the One Back Office (OBO) platform. The ODH platform can be used to perform real-time performance analytics based on CPEs, BSS and OSS based on real-time data.

Security Consultant

November 2016- January 2017
Ultimum Managed Services (Intern project)

Within Ultimum, I was involved in various security tests of clients’ websites, infrastructures and applications, and hosting workshops for colleagues and clients. Resulting in a safer environment for various customers, a higher level of knowledge regarding internet safety among employees and more stable and more secure websites

DevOps Engineer

September 2016 - November 2016
Meyn B.V. (contracted)

I was hired at this company to develop a deployment system for various virtualization techniques and in-house software products. The client’s wish was a central platform based on Kickstart and Ansible, from which the entire virtualization platform can be implemented and managed at remote locations using simple methods.

Security / Unix Consultant

June 2016- September 2016
Ultimum Managed Services (Intern project)

Within Ultimum, I was involved in various Linux/Unix and Open Source tasks, including the management and migrations of complex customer platforms (including Slackware 13, Keepalive, Zebra, Openvpn and Amazon). I was also ultimately responsible for various migrations and pen tests within Ultimum and for customers.

Systems and monitoring Architect

March 2016 - June 2016
SLTN (contracted)

SLTN had a need for a 24/7 monitoring platform for a large telecom supplier, because of the complexity of the platform and the network, I was asked to design and develop it. The end result was a central monitoring system where multiple locations can be managed, roll-out of new controls via an automated system, all within the requirements of the end customer, taking into account their safety requirements through. VPN tunnels, Encryption, SSL, etc.


December 2015 - March 2016
Merus N.V. (contracted)

For Merus, I was asked to replace an outdated database platform with various problems with a new PostgresQL High Available, multi DC cluster, virtualized on HyperV.

Senior Linux Engineer

February 2015 - November 2015
FD Mediagroep B.V. (contracted)

Within FD Mediagroep I was involved with all Linux / Solaris systems, network equipment, Storage systems and related other hard/software

Senior Linux Engineer

February 2014 - February 2015
Tele2 Nederland B.V. (contracted)

Within Tele2, I was involved with all Linux, HP-UX, Solaris, SUN-OS systems and related other hard/software, including F5 load balancers, Cisco Content switches, Juniper firewalls, etc.


You can list your side projects or open source libraries in this section. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum et ligula in nunc bibendum fringilla a eu lectus.

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You can list your publications in this section. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum et ligula in nunc bibendum fringilla a eu lectus.

  • The Art of Computer Programming
  • Donald E. Knuth
    Addison-Wesley, 1968
  • Genetic Programming III: Darwinian Invention & Problem Solving
  • Koza, J.R., Andre, D., Bennett, F.H., Keane, M.A.
    Morgan Kaufmann Publishers Inc., San Francisco, CA, USA, 1st edn. (1999)
  • A syntax directed compiler for Algol 60
  • Edgar T. Irons
    Comm. ACM 4 (1961), 51–55

    Skills & Proficiency

    Python & Django

    Javascript & jQuery


    HTML5 & CSS

    Ruby on Rails

    Sketch & Photoshop