Senior Mobile Engineer with 10+ years in mobile development and 6+ years with Flutter.
Worked as Mobile Tech Lead in fintech/Web3 company. Designed scalable architecture for large applications, improving development speed and maintainability by 30–50%.
Key experience:
- building complex mobile systems (dApp browser, WebView integrations)
- designing smart authentication flows with improved UX and retention
- cross-platform architecture for mobile and web
- native integrations (Kotlin / Swift)
Strong in:
- Clean Architecture, MVVM
- performance optimization
- scalable mobile systems
Also:
- built Flutter plugin for native notifications
- improved CI/CD (GitHub Actions + Fastlane) reducing build time 2x+
- author of Flutter library (render_metrics)
Looking for remote Senior / Lead Flutter Engineer roles.
Experience: 7 years
Yearly salary: $84,000
Hourly rate: $40
Residency: 🇰🇿 Kazakhstan
Experience
Flutter tech lead
Broxus 2024 - 2026
Senior Flutter Developer / Mobile Tech Lead - Worked on fintech/Web3 product with 12k+ daily active users and 80k–90k monthly peak users - Designed and implemented scalable architecture (MVVM + Clean Architecture), reducing development and maintenance complexity by 30–50% - Built high-performance in-app browser (flutter_inappwebview) for dApp interaction, enabling seamless integration with Web3 products - Developed smart authentication flow improving onboarding UX and reducing user drop-off - Created Flutter plugin for native notification service (Kotlin + Swift + Flutter) - Improved CI/CD pipeline (GitHub Actions + Fastlane), reducing build time by 2x+ - Worked with real-time features, SQLite (Drift), and complex state management
Senior Flutter Developer / Lead Mobile Developer
Growth.pet 2022 - 2024
Senior Flutter Developer / Lead Mobile Developer - Led mobile development and architecture design for a multi-brand application platform - Designed modular architecture enabling rapid branding and launch of new apps, reducing time-to-market by 50–70% - Built cross-platform layout system (mobile/web/tablet), saving 150+ engineering hours and ensuring consistent UI across platforms - Developed Auth0 Passwordless authentication module (Flutter + Kotlin + Swift + JavaScript), improving login UX and reducing friction - Implemented unified file and media system used across mobile and web applications
Senior Flutter Developer
Fintech 2021 - 2022
Senior Flutter Developer - Developed and maintained fintech mobile applications, including mobile banking and payment terminal solutions - Built client application for financial operations and real-time payment tracking, handling dynamic transaction updates - Optimized performance and stability of mobile applications under real-world usage conditions
Flutter developer
Surf Studio 2019 - 2021
Flutter Developer - Implemented offline-first architecture (sqflite + sync), improving reliability in low-network conditions - Reduced operational costs by 4x through process automation - Developed custom Flutter library (render_metrics) for advanced UI measurement - Built complex UI components including keyboard-aware layouts
JavaScript / React Developer / React Native Developer
RedStart 2017 - 2019
- Developed production SPA applications and React Native mobile apps for client projects - Led frontend development and participated in architecture decisions for web and mobile solutions - Built scalable UI components and application structure using React and Redux - Worked with cross-functional teams to deliver end-to-end product features
Skills
css
dart
firebase
git
javascript
kotlin
swift
web3
flutter
