Wiljan Ruizendaal
Software Engineer at Ministerie van Defensie
Utrecht, Netherlands
Summary
👤
Senior🎓
Top SchoolWiljan Ruizendaal is a software engineer based in Utrecht with a decade of hands-on experience building reliable systems for both public sector and commercial clients. Since 2015 he has contributed engineering expertise at the Dutch Ministry of Defence, while more recently founding Codexe to take on freelance and entrepreneurial software projects. Trained in Computer Software Engineering at Hogeschool van Amsterdam, he blends disciplined engineering practices with a genuine obsession for crafting elegant solutions. Known for steady, long-term engagements, he brings institutional-grade rigor from defence work alongside the agility of a solo founder. Wiljan’s career shows a pattern of deep technical commitment rather than short-term pivots, signaling a developer who values mastery and practical impact.
10 years of coding experience
2 years of employment as a software developer
Bachelor's degree, Computer Software Engineering, Bachelor's degree, Computer Software Engineering at Hogeschool van Amsterdam
Github Skills (26)
multimap10
hashmap10
dictionary10
hashtable10
csharp9
simd9
dotnet8
automatic-updates7
autoupdate7
updater6
benchmark6
installer5
military5
hook4
weaver4
Programming languages (2)
Github contributions (5)
Wsm2110/Faster.Map
Nov 2021 - Jan 2023
Collection of incredibly fast hashmaps
Contributions:118 commits, 13 PRs, 265 pushes in 1 year 2 months
dictionaryhashtabledotnetstoredrobin
Wsm2110/Wsm
Dec 2015 - Jan 2017
Contributions:18 pushes, 4 branches in 1 year 1 month
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