Mike Gerasymenko
Mobile Engineer at ElevenLabs
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolMike Gerasymenko is a Berlin-based mobile engineer with 12 years of expertise building high-quality iOS apps and leading engineering teams across startups and scale-ups. He has progressed from hands-on iOS development at Readdle to technical and leadership roles including CTO and Staff Mobile Engineer, most recently joining ElevenLabs after senior posts at Delivery Hero and Tamara. Mike combines deep Objective-C/C/C++ skills and modern iOS frameworks like CoreData/CoreText with a pragmatic product focus that spans mobile marketing, publishing, and fintech. He contributes to open-source iOS tooling—most notably improvements to Classy, a UIView styling library—bringing UI polish and performance fixes into production. Known for mentoring and scaling teams, he balances shipping robust code with nurturing engineering culture. His academic background in applied mathematics and computer science underpins a methodical approach to design and problem solving.
12 years of coding experience
18 years of employment as a software developer
Richelieu LyceumMaster of Science (M.S.), Applied Mathematics and Computer Science, Master of Science (M.S.), Applied Mathematics and Computer Science at Odesa I.I.Mechnikov National University
English, German, Russian, Ukrainian, Italian
Stackoverflow
391reputation
7kreached
5answers
0questions
Github Skills (13)
styles10
objective-c10
uifont10
userstyle10
swift10
ios10
coding8
caching8
xcode6
xib6
variadic-functions6
cocoa6
callkit6
Programming languages (13)
Github contributions (5)
ClassyKit/Classy
Jul 2015 - Aug 2016
Expressive, flexible, and powerful stylesheets for UIView and friends.
Role in this project:
iOS Developer
iOS DeveloperContributions:1 release, 17 commits, 9 PRs in 1 year 1 month
Contributions summary:Mike primarily contributed to the ClassyKit project by implementing new features and making code improvements related to styling and UI elements in iOS. These contributions included adding support for system fonts with weight specifications, refactoring code to use weak references, and adding NSCoding support for saving and loading style information. The user also fixed a bug in the binary caching implementation.
stylesheetstylesheetsexpressiveuiviewswift
mikeger/XcodeSelectiveTesting
Aug 2023 - Mar 2025
Xcode selective testing: Run only tests relevant to the changeset.
Contributions:21 releases, 12 reviews, 36 PRs in 1 year 7 months
swiftswift-package-managertestingxcode
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