Tobias Kjeldsen
Systems Developer at Paychex Europe
Copenhagen, Capital Region of Denmark
Summary
👤
Senior🎓
Top SchoolTobias Kjeldsen is a systems developer with 17 years' experience leading mobile and embedded software projects from Copenhagen, blending deep Unix-like systems knowledge with hands-on Android, iOS and Flutter development. At Paychex Europe he leads mobile app development and application security efforts, owning CI/CD and build toolchains as well as Static Application Security Testing. He has a long history of experimenting on constrained and unconventional platforms—from Nintendo DS and e-readers to various embedded devices—bringing pragmatism to reverse engineering and ports into open toolchains. Curious and self-taught, Tobias pairs practical reverse-engineering skills (Frida enthusiast) with a photographer’s eye for detail, often applying the same meticulousness to instrumentation and binary patching. His work habitually bridges low-level system insight and modern cross-platform UX, enabling secure, maintainable mobile experiences.
17 years of coding experience
2 years of employment as a software developer
The Higher Preparatory Examination HF, The Higher Preparatory Examination HF at Espergærde GymnasiumPBa Bachelor of Software Development Computer Science, PBa Bachelor of Software Development Computer Science at Copenhagen Business Academy – EK
Danish, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (82)
phonegap10
windows10
rxdart10
mobile-web10
framework710
javascript10
stencil10
ionic10
dart10
angular10
progressive-web-apps10
typescript10
cross-platform10
progressive10
vue10
Programming languages (8)
Github contributions (5)
Tobiaswk/scheduled_notifications
Jun 2017 - Apr 2018
Contributions:12 commits, 11 pushes, 1 branch in 10 months
Tobiaswk/dartcarwings
Mar 2019 - Aug 2023
Mirror of GitLab repository
Contributions:36 pushes, 4 branches in 4 years 5 months
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