Claus Holst
Chief Software Developer at Vipps MobilePay
Aarhus, Central Denmark Region
Summary
👤
Senior🎓
Top SchoolClaus Holst is a seasoned mobile and backend software leader with 11 years of experience, currently serving as Chief Software Developer at Vipps MobilePay and previously leading MobilePay’s mobile engineering. He specializes in Android, Kotlin and Kotlin Multiplatform, with deep roots in Java/J2EE, C#/.NET and database-driven systems, and a track record of modernizing architectures and processes for large consumer apps and payment terminals. Claus combines hands-on engineering—evidenced by performance and concurrency improvements to the popular MobileNativeFoundation/Store KMP library—with product-focused infrastructure work like app configuration frameworks and cross-platform integrations. He has built foundational Android libraries used across hundreds of apps, shipped complex device integrations (Chromebook, Kindle, Android TV, Verifone POS), and co-founded an app studio, bringing both entrepreneurial grit and delivery at scale. Based in Aarhus, he pairs a master’s in information technology with a pragmatic approach to performance, maintainability and cross-platform reuse.
10 years of coding experience
17 years of employment as a software developer
Master of Science (cand.polyt.) Engineering (Information Technology), Master of Science (cand.polyt.) Engineering (Information Technology) at Aarhus UniversityBachelor of Science (BSc) Information and Communication Technology, Bachelor of Science (BSc) Information and Communication Technology at Engineering College of Aarhus
English, Danish
Stackoverflow
911reputation
64kreached
9answers
3questions
android-activity
top-5%
Github Skills (20)
kotlin10
multiplatform10
concurrency10
caching9
android-activity9
performance-optimization9
data-structures8
git-repository8
data-structure8
offline-web-app8
offline-app8
package-repository8
android-viewpager6
android-studio6
toast6
Programming languages (9)
Github contributions (5)
MobileNativeFoundation/Store
Mar 2020 - Apr 2020
A Kotlin Multiplatform solution for working with data. Whether you’re building alone or with a team of thousands, Store can help
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 8 PRs, 37 comments in 27 days
Contributions summary:Claus primarily focused on improving the performance and maintainability of the project. Their contributions included refactoring the `ChannelManager` to utilize Kotlin's `ArrayDeque` for more efficient queue operations. They also migrated the filesystem library and cache library to use Kotlin's time APIs. Furthermore, the user addressed the project's reliance on Java's `AtomicBoolean` and `ReentrantLock`, replacing them with AtomicFu implementations.
guava-cachebrowserresilientkotlin-multiplatformandroid
clhols/drchannels-flutter
Jul 2019 - May 2021
Contributions:18 commits, 57 pushes, 1 branch in 1 year 10 months
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