Matěj J
Senior Staff Software Development Engineer IOS at Disney+ Hotstar
Brno, Southeast, Czechia
Summary
🤩
Rockstar🎓
Top SchoolMatěj J is a Senior Staff iOS Engineer with 12 years of experience, currently improving performance and reliability for Disney+ Hotstar across iOS and Apple TV. He drove a 35% faster iOS startup (50% on Apple TV), boosted stability by over 50%, and helped scale the service to support a record 59 million concurrent streams while launching Disney+ into 18 new MENA countries. Known for coordinating cross-functional international teams—productivity, release, design, backend and client—he blends deep Swift craftsmanship with production-grade incident leadership. Based in Brno, he balances engineering rigor with a creative streak, exploring the intersection of art and technology in his spare time.
12 years of coding experience
Gymnázium Matyáše LerchaBachelor's degree, Bachelor's degree at Masaryk University Brno
English, German, Czech, Slovak
Github Skills (200)
programming-language10
beautifier10
api-client10
authentication10
render10
intellij-idea10
ios-library10
linter10
command-line-tool10
rest-api10
linting10
custom-view10
datasource10
swiftui10
firebase-authentication10
Programming languages (13)
Github contributions (5)
futuredapp/Engineering-Handbook
Mar 2019 - Nov 2021
Best practices and guidelines for developing apps in Futured
Contributions:9 reviews, 63 commits, 29 PRs in 2 years 8 months
iosandroiddevelopingguidelines
mkj-is/NeonClockworkSaver
Nov 2013 - Jan 2017
Contributions:8 commits, 1 push in 3 years 2 months
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