Sergei Mitrofanov
Senior Mobile Engineer at Aptoide
Lisbon, Portugal
Summary
👤
Senior🎓
Top SchoolSergei Mitrofanov is a Senior Mobile Engineer and technology leader based in Lisbon with 10+ years building and shipping high-quality mobile products across Android and React Native. He combines hands-on development (Kotlin, Coroutines, Compose, React Native, TypeScript) with proven team leadership as a CTO, tech lead and mentor, having delivered multiple apps and led cross-functional teams without burnout. Sergei excels at practical architecture and process improvements—introducing CI/linting, migration strategies, TDD/BDD and knowledge-sharing practices that measurably raised product quality and delivery speed. He has a track record of turning underperforming Android products into platform-leading releases and launching robust MVPs from scratch. Comfortable in both startup and scale contexts, he balances future-proof technical choices with product deadlines and business impact. His background in microelectronics gives him a systems-minded approach to engineering trade-offs and reliability.
10 years of coding experience
7 years of employment as a software developer
Licentiate degree, microelectronics and solid-state electronics, Licentiate degree, microelectronics and solid-state electronics at Novosibirsk State Technical University (NSTU)
Github Skills (61)
kotlin10
wallet10
scanner10
touchid10
ios10
react-native-camera10
react-native10
instagram10
barcodes10
datamatrix10
cross-platform10
snapchat10
cryptocurrency10
camera10
worklet10
Programming languages (7)
Github contributions (5)
Aptoide/android-youtube-player
May 2023 - Jan 2025
YouTube Player library for Android and Chromecast, stable and customizable.
Contributions:1 review, 1 PR, 2 pushes in 1 year 7 months
G0retZ/pjproject
Jan 2016 - Mar 2018
Contributions:29 pushes, 1 branch in 2 years 2 months
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