Portfolio

Career

Employers and engagements

2024 – present
MaatInICT B.V.

Founder and test automation engineer

My own company, specialised in test automation for One Identity with Robot Framework. I build complex test environments and develop custom Python libraries for IAM testing.

Robot Framework One Identity Python IAM testing
2026
- 2026 – present
  
  MaatInVacatures, job platform
  
  Design and development of a job platform that brings vacancies from multiple sources together in one overview, with personal search profiles, daily automatic searches and application status tracking. Visit the website
  
  Web development HTML/CSS JavaScript API integrations
- 2026 – present
  
  Etique Hospitality, website
  
  Design, development and maintenance of the website of a hospitality business. Visit the website
  
  Web development HTML/CSS JavaScript
2025
- 2025 – 2026
  
  Rabobank, test automation engineer IAM
  
  Test automation engineer for Identity & Access Management at one of the largest banks in the Netherlands. I built and maintained automated test suites for critical IAM systems.
  
  IAM testing Test automation Banking Security
- 2025 – present
  
  maatinict.nl, website
  
  Design, development and maintenance of the MaatInICT company website, the site you are reading now.
  
  Web development HTML/CSS JavaScript
- Sep 2025 – present
  
  Vleugelslag Rouwverwerking, website
  
  Design, development and maintenance of the website for the launch of the book "Rouw en herstel na verlies door een misdrijf" (grief and recovery after loss through crime). Visit the website
  
  Web development HTML/CSS JavaScript
- 2025 – present
  
  Knipper, macOS app
  
  Design and development of Knipper, a native screenshot tool for macOS. Available on the Mac App Store.
  
  Swift macOS App design Xcode
- 2025 – present
  
  Number Field, game
  
  Design and development of Number Field, a mathematical puzzle game for iOS and Android, built natively with Swift and Kotlin.
  
  Swift Kotlin Game design iOS/Android
- 2025 – present
  
  GoGame, game
  
  Design and development of GoGame, a strategy board game for iOS with a retro synthwave look. In collaboration with Redflare B.V.
  
  Swift Game design iOS
2024
- 2024 – 2025
  
  Buma/Stemra, test automation engineer
  
  Test automation in the music industry with Robot Framework and Katalon Studio Enterprise. New, externally developed applications were delivered in short sprints; automated regression tests sped up the testing work.
  
  Robot Framework Katalon Studio Regression testing Agile
2018 – 2024

Dutch National Police (Politie Nederland)

Test automation engineer

Developing and maintaining automated test suites for critical police systems. Setting up CI/CD pipelines and safeguarding the quality of sensitive applications.

Test automation CI/CD Security testing
2011 – 2018
Ordina (now Sopra Steria)

Senior test engineer

Enterprise projects for government and financial clients. Part of the Ordina security department, focusing on functional testing, ethical hacking and security assessments.

Functional testing Ethical hacking Security testing Enterprise projects
- 2015 – 2018
  
  Dutch National Police, senior test analyst and test automation engineer IAM
  
  One Identity suite from version 6.x up to and including 9.2.1. Test automation with Robot Framework for One Identity, Active Directory, MSSQL and Oracle databases, PAM, chain partners (ketenpartners), FAB/TAB and business processes.
  
  One Identity Robot Framework IAM testing Active Directory
- 2013 – 2015
  
  Ordina Security, pentester and ethical hacker
  
  In-house pentester for DigiD assessments, code reviews, vulnerability scanning and physical penetration testing. Authorised security assessments for clients, including physical break-in tests.
  
  Penetration testing DigiD assessments Code review Physical security
- 2011 – 2013
  
  Ziggo, senior test analyst
  
  System and functional testing of Oracle applications, back-end systems and customer portals. Extensive work with SOAP and REST APIs, Oracle SQL and PL/SQL and other Oracle suites.
  
  System testing Functional testing SOAP/REST API Oracle SQL/PL/SQL
2005 – 2011
Atos Origin

Test engineer

The start of my career as a professional software tester. I gained broad experience in test methods, defect management and QA processes.

Manual testing Test methods QA processes
- 2009 – 2011
  
  AgentschapNL
  
  Test specialist for functional, system and performance testing on government projects, including Sloopregeling, (EVOA)TERRA, SDE(+) and the Default BAS application.
  
  Functional testing System testing Performance testing Government
- 2006 – 2009
  
  MijnOverheid.nl
  
  Functional and performance testing of the Dutch government's citizen portal, which gives people in the Netherlands access to government services.
  
  Functional testing Performance testing Government
- 2005 – 2006
  
  Ministry of LNV, Oracle Forms developer
  
  Reworking PL/SQL scripts in Oracle Forms for the Ministry of Agriculture, Nature and Food Quality (LNV).
  
  Oracle Forms PL/SQL Government
2000 – 2005

Texaco (A12 motorway)

Station manager

Managed a Texaco service station on the A12 motorway. Led a team of 18 people in a 24/7 shift environment and was responsible for daily operations, staff scheduling and customer service.

Team leadership Operations management 24/7 operations
1999 – 2000

Oracle Developer/Designer

Junior developer

My start in IT, after completing the Oracle University training. Oracle Forms and Reports development during the millennium projects.

Oracle Forms Oracle Reports Database development