Johan Haneveld
Senior Software Engineer Team Lead at Self-Employed
Utrecht, Utrecht, Netherlands
Summary
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SeniorJohan Haneveld is a Senior Software Engineer and Team Lead based in Utrecht with over 25 years in software engineering and 12 years of focused professional experience in web and mobile development. He combines hands-on React and React Native expertise with leadership roles spanning team management, CTO responsibilities, and freelance delivery for clients who value quality and remote-first collaboration. At StaffTraveler and as a long-term freelancer he architects and ships user-facing apps while mentoring teams and setting technical strategy. His background in security testing and reverse engineering at ING gives him a pragmatic, risk-aware approach to building resilient systems. Known for preferring shortcuts that cut delays, he balances practical efficiency with deep technical craft, from creative web installations to production mobile platforms. Johan’s track record includes driving technology adoption, training junior engineers, and turning creative concepts into reliable products.
13 years of coding experience
12 years of employment as a software developer
English, Dutch
Github Skills (91)
mobile-development10
multithreading10
react-native-app10
navigationbar10
gesture10
react-native-iap10
react-native-reanimated10
remote-config10
floating10
in-app-purchase10
react-native-ios10
firebase10
auth10
javascript10
animation10
Programming languages (11)
Github contributions (5)
idlework/generative-tree
Mar 2015 - Mar 2019
Contributions:3 commits, 5 pushes in 4 years 1 month
idlework/react-native-floating-action-bar
Mar 2020 - Aug 2020
A React Native floating action bar.
Contributions:31 commits, 1 PR, 17 pushes in 5 months
react-nativefloatingactionbarnavigationbarjavascript
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