Johan Walhout
Full Stack Developer at Interestinate AB
Randstad, Netherlands
Summary
👤
Senior🎓
Top SchoolJohan Walhout is a Full Stack Developer and seasoned Product Owner with nine years of professional experience building web, mobile and server applications while leading product teams and process improvements. Based in the Randstad, he blends hands-on engineering (Angular, Flutter, Azure, GCP, SharePoint) with product stewardship—maintaining and prioritizing backlogs to maximize ROI and anticipate user needs. He has a track record of shipping polished mobile UI work (including Flutter open-source contributions like a design-focused to-do app) and delivering client-facing web applications through his company Interestinate. Johan’s MSc in Business Process Management and IT underpins his ability to keep a helicopter view without losing sight of implementation details. Known for clear communication and stakeholder negotiation, he thrives on technically and organizationally challenging projects. An early background in media design gives him an uncommon eye for UX and visual polish that informs his development work.
9 years of coding experience
12 years of employment as a software developer
Master of Science (MSc), Business Process Management and IT, Master of Science (MSc), Business Process Management and IT at Open UniversiteitBachelor, Business Processes, IT-Development, Media Technologie, Bachelor, Business Processes, IT-Development, Media Technologie at Rotterdam University of Applied SciencesMedia Design, Media Design at Grafisch Lyceum Rotterdam
Dutch, English, Swedish
Stackoverflow
1,576reputation
157kreached
5answers
32questions
Github Skills (21)
ios10
mobile-development10
flutter-apps10
ui-design10
android-development10
uid10
front-end-development10
android10
mobile10
flutter-game10
flutter10
dart9
angular-material6
firebase6
firebase-hosting6
Programming languages (8)
Github contributions (5)
LiveLikeCounter/Flutter-Todolist
Sep 2019 - May 2021
A Flutter based to do list app (yes, another to do list... but... this time based on a beautiful design)
Role in this project:
Mobile Developer (Android/iOS)
Mobile Developer (Android/iOS)Contributions:28 commits, 3 PRs, 24 pushes in 1 year 8 months
Contributions summary:Johan primarily worked on the Flutter-based to-do list app, making changes related to UI enhancements and updates. The commits include modifications to the onboarding screen, integration of swipe-to-delete functionality in the home screen, and adjustments to bottom navigation. They also worked on configurations related to the Android build.
flutterflutter-appsdesign
LiveLikeCounter/Flutter-Paypal-Redesign
May 2019 - Sep 2020
Paypal Redesign in a Flutter App
Contributions:21 commits, 12 pushes in 1 year 4 months
flutter-appspaypaldesignuplabs-challenge
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