Maarten De Boer
Lead DevOps Engineer at Visma | Onguard
Maarssen, Utrecht, Netherlands
Summary
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Rockstar🎓
Top SchoolMaarten De Boer is a Lead DevOps Engineer with 13 years of hands-on experience building and maintaining reliable hosting and private cloud platforms for Visma | Onguard and predecessors. He combines deep Windows/.NET operational knowledge with automation skills in Ansible and PowerShell, and a background in PHP and databases that helps bridge development and infrastructure teams. Maarten has progressed from hosting support and application specialist roles to technical leadership, overseeing platform security, updates, and partner enablement for production environments. An active contributor to open-source security tooling, he improved robustness in the widely used web-token JWT framework by hardening JWE deserialization against malformed inputs — a subtle but critical reliability improvement. Based in Maarssen, he brings practical systems engineering instincts informed by both formal technical education and long-term, production-facing experience.
13 years of coding experience
4 years of employment as a software developer
Game Development, Information Technology, Game Development, Information Technology at Hogeschool van AmsterdamROC Gooi & Vechtstreek
English, Dutch
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (9)
json10
php10
jwe10
jwt10
jose10
encryption9
signature9
javaws8
jwk7
Programming languages (15)
Github contributions (5)
web-token/jwt-framework
Jan 2019 - May 2022
JWT Framework
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 commits, 7 PRs, 14 comments in 3 years 5 months
Contributions summary:Maarten primarily focused on improving the robustness of the JWE (JSON Web Encryption) serializer, addressing a critical bug that caused crashes when handling invalid or malformed data. Their contributions included fixing the deserialization process to gracefully handle invalid inputs and registering aliases for arguments, likely improving dependency injection within the framework. The user's work demonstrates a strong understanding of the JWE and JWT framework internals.
jwtjosejwsjwejwk
Cloudstek/yarn-audit-junit
Mar 2022 - Apr 2026
Contributions:1 release, 1 branch, 1 tag in 4 years 1 month
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