Razvan Chelemen
Chief Technology Officer at Designesy
Cluj-Napoca, Romania
Summary
👤
Senior🎓
Top SchoolRazvan Chelemen is a technology leader and entrepreneur with nine years of experience building mobile-first products and engineering organizations from Cluj-Napoca, Romania. Currently CTO at grovs and an active developer at Designesy, he co-founded appssemble and parenthing where he led end-to-end mobile app delivery, product design collaboration, and technical consultancy. His background spans iOS, Android, and C/C++ development—shaped by early work on navigation SDKs and resilient streaming integrations—anchored by an M.Sc. in Distributed Internet Systems. Razvan combines hands-on engineering with product sensitivity, creating environments that foster continuous learning and high-quality execution. Colleagues recognize him for turning design ideas into polished, production-ready mobile experiences and for maintaining technical stewardship across startups and client projects.
9 years of coding experience
2 years of employment as a software developer
Universitatea Babeș-Bolyai din Cluj-Napoca
Romanian, English
Stackoverflow
4,522reputation
269kreached
117answers
39questions
ios
top-5%
animation
top-5%
swift
top-5%
Github Skills (65)
cryptocurrency10
streaming10
animation10
broadcasting10
mobile-application10
sdk10
swift10
video-streaming10
uitableview10
uicollectionview10
android10
stellar10
macos10
objective-c10
ios10
Programming languages (7)
Github contributions (5)
appssemble/M13Checkbox
Apr 2019 - May 2025
A customizeable checkbox for iOS
Contributions:6 pushes, 1 branch in 6 years 1 month
ipacydiacheckboxswiftios
appssemble/Parchment
Mar 2019 - Sep 2021
A paging view controller with a highly customizable menu ✨
Contributions:2 PRs, 2 pushes, 1 branch in 2 years 7 months
viewcontroller
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.