Volodymyr K.
Senior Mobile Developer | Android, iOS & Flutter
### Senior Mobile Developer | Android, iOS & Flutter I’ve been building mobile applications since 2016, helping clients create reliable, scalable, and user-friendly products for Android and iOS, as well as cross-platform apps with Flutter. With 10 years of experience, I focus on delivering apps that are cleanly built, maintainable, and ready for real-world use. I care about code quality, performance, usability, and building products that support real business goals. **What I bring to each project:** ✓ Clean, scalable, and maintainable code ✓ Strong focus on quality and attention to detail ✓ Full-cycle experience from planning to release ✓ Modern Android, iOS, and Flutter development practices ✓ A practical, solution-focused mindset **Languages:** ✪ Kotlin ✪ Java ✪ Swift ✪ Dart **Skills & Expertise:** ✔ Native Android and iOS mobile development ✔ Cross-platform mobile development with Flutter ✔ Object-oriented programming and software design patterns ✔ Clean Architecture ✔ Jetpack Compose, XML, SwiftUI, and Flutter UI ✔ Material Design and UI/UX best practices ✔ Figma collaboration and UI implementation ✔ Responsive apps for multiple screen sizes and devices ✔ Testing, beta distribution, App Store, and Google Play releases **Technologies:** ✔ REST APIs, HTTPS, Sockets, gRPC ✔ Firebase ✔ Google SDKs ✔ AWS / Amazon SDKs ✔ Social media integrations ✔ Camera features ✔ Barcode and QR scanning ✔ Image processing ✔ Room, secure local storage, and caching ✔ Sensors, location services, and Mapbox I enjoy working on challenging projects and building mobile apps that are reliable, polished, and designed to deliver real value.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $1.7k
Billed in all: $254,364$254k
$842 in the last 6 months
Across 64 contracts
Earnings, last 30 days
Skill rankings: Top 16% in Android UI Design
Ranked by MRR among everyone on Upwork with the skill.
- #39Android UI Design239 freelancers · 🇺🇦 #5Top 16%🇺🇦#5 of 14
- #45Core Java275 freelancers · 🇺🇦 #5Top 16%🇺🇦#5 of 25
- #119XML717 freelancers · 🇺🇦 #10Top 17%🇺🇦#10 of 49
- #145Android SDK805 freelancers · 🇺🇦 #18Top 18%🇺🇦#18 of 90
- #169Google Maps API756 freelancers · 🇺🇦 #9Top 22%🇺🇦#9 of 36
- #224JSON1,293 freelancers · 🇺🇦 #29Top 17%🇺🇦#29 of 124
- #647Kotlin3,021 freelancers · 🇺🇦 #50Top 21%🇺🇦#50 of 224
- #718Swift3,634 freelancers · 🇺🇦 #69Top 20%🇺🇦#69 of 314