Oleh Marchenko
Software Development Team Lead at friendo.cash
Spain
Summary
🤩
Rockstar🎓
Top SchoolOleh Marchenko is a Software Development Team Lead and senior mobile/full-stack engineer with 8 years of experience building fintech, logistics, and marketplace apps. Based in Spain, he combines hands-on Flutter expertise with team and tech leadership, having led cross-platform mobile teams and created CI/CD pipelines, custom UI kits, and encrypted logging tools. His fintech work includes implementing biometric 3DS 2.0 payments, database encryption, and performance optimizations that raised app frame rates from ~17 FPS to 40+ FPS. He’s also authored custom charting with CustomPaint, migrated state management to MobX for substantial speed gains, and contributed a merged PR to the Flutter web repo—evidence of both deep platform knowledge and community impact. Known for pragmatic architecture patterns (VIPER-like, request-based) and mentoring, he accelerates delivery while hardening security and observability in production mobile systems.
8 years of coding experience
7 years of employment as a software developer
Junior Specialist, Computer Engineering, Junior Specialist, Computer Engineering at Dnipropetrovsk Radio device building CollegeMaster's degree, Software Engeneering, Master's degree, Software Engeneering at Dnipropetrovsk State Technical University of Railway Transport
English, deutch, Ukrainian
Github Skills (82)
donut-chart10
mobile-development10
windows10
flutter-web10
google-map10
google-maps10
filepicker10
internet-connection10
reactive10
flutter-plugin10
app-framework10
dart-language10
linux10
skia10
golang10
Programming languages (8)
Github contributions (5)
marchdev-tk/file_selector
Mar 2020 - Dec 2022
File selection on both Mobile (Android/iOS), Web and Desktop (Windows, macOS, Linux).
Contributions:23 commits, 19 pushes, 2 branches in 2 years 10 months
androidioslinuxmacosmobile
marchdev-tk/google_directions_api
Feb 2020 - Feb 2022
The Directions API is a service that calculates directions between locations. You can search for directions for several modes of transportation, including transit, driving, walking, or cycling.
Contributions:20 commits, 5 PRs, 17 pushes in 2 years
walkingdirections-apimodesgoogle-mapsgoogle-maps-api
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