Fiber - Inventory. Sales. Receipts.
Fiber is a free inventory management app used to track inventory, record sales, and print receipts.
Mobile Developer
Full-time available
Bio
Eric O, is a seasoned Senior Mobile Engineer and Flutter Specialist with a proven track record of delivering multi-million-dollar business outcomes and building scalable mobile ecosystems across Europe, the US, and Africa. With deep expertise in Flutter, Dart, Kotlin, Swift, and cross-platform architecture, he has led high-performing teams and shipped multiple 4.5+ rated apps on the App Store and Google Play. At Y-Queue?, he engineered the world’s first Flutter-based Instant App and App Clip, achieving seamless Android/iOS…
Expertise
FlutterGraphQLSwiftTypescriptC#GitObjective-CJava
Video Intro
Assessments
Great Score on Design a Real-Time Financial Data Flutter Application, Difficulty Medium · Great Score on Design an Efficient API Integration Strategy for E-Commerce, Difficulty Medium · Great score on Debug and Enhance Event Fetching Feature, Difficulty Medium · Great score on API Integration Strategy for E-Commerce, Difficulty Hard · Great score on Manage state in Flutter with nested components, Difficulty Easy
Projects
Experience
Senior Flutter Developer
Y-Queue?Oct 2024 — Apr 2025- Built the first ever Flutter-based Instant App & App Clip on Android/iOS.
- Shipped Y-Queue? app (4.5+ rating) on Play Store & App Store.
- Optimized delivery speed & UX, enabling frictionless onboarding.
Lead Mobile Developer
Kurero.coMay 2023 — Dec 2024- Engineered custom deep link solution, saving > $50K in vendor costs.
- Boosted user retention +80% via notifications & engagement flows.
- Mentored 4 mobile + 2 backend engineers to production readiness in <6 weeks.
- Promoted to Lead Developer within 2 months of joining.
Senior Flutter Developer
Smart-iX GmbHMar 2022 — Feb 2023- Led rewrite of SmartLiving app fi avoided bankruptcy & enabled €3M acquisition.
- Built Tru.Store 2.0, integrated into 28,000+ TOGG EVs, demoed to Turkish President.
- Delivered dual-screen car app communication (first of its kind for TOGG).
- Developed native Android car apps used in Porsche, Volkswagen, TOGG.
Senior Flutter Developer
Rezme Inc.Aug 2019 — Apr 2022- Migrated messy GetX app fi clean BLoC architecture, stabilizing app by 90%.
- Fixed critical performance issues, leading to 20% marketplace equity sale.
- Rebuilt UX & backend integration fi eliminated customer-reported crashes.
Education
B.Sc. Computer Science
University of NigeriaEnugu, Nigeria2018 — 2021
Mobile Developer
Full-time available
Eric is available for hire
Schedule an interview14 days risk-free trial · No commitments · We handle contracts and payroll
Bio
Eric O, is a seasoned Senior Mobile Engineer and Flutter Specialist with a proven track record of delivering multi-million-dollar business outcomes and building scalable mobile ecosystems across Europe, the US, and Africa. With deep expertise in Flutter, Dart, Kotlin, Swift, and cross-platform architecture, he has led high-performing teams and shipped multiple 4.5+ rated apps on the App Store and Google Play. At Y-Queue?, he engineered the world’s first Flutter-based Instant App and App Clip, achieving seamless Android/iOS…
- Projects completed1
- Hourly rate
- 4+ years experience
- Member since Oct 2025
Expertise
FlutterGraphQLSwiftTypescriptC#GitObjective-CJava
Video Intro
Assessments
Great Score on Design a Real-Time Financial Data Flutter Application, Difficulty Medium · Great Score on Design an Efficient API Integration Strategy for E-Commerce, Difficulty Medium · Great score on Debug and Enhance Event Fetching Feature, Difficulty Medium · Great score on API Integration Strategy for E-Commerce, Difficulty Hard · Great score on Manage state in Flutter with nested components, Difficulty Easy
Projects
Fiber - Inventory. Sales. Receipts.
Fiber is a free inventory management app used to track inventory, record sales, and print receipts.
Experience
Senior Flutter Developer
Y-Queue?Oct 2024 — Apr 2025- Built the first ever Flutter-based Instant App & App Clip on Android/iOS.
- Shipped Y-Queue? app (4.5+ rating) on Play Store & App Store.
- Optimized delivery speed & UX, enabling frictionless onboarding.
Lead Mobile Developer
Kurero.coMay 2023 — Dec 2024- Engineered custom deep link solution, saving > $50K in vendor costs.
- Boosted user retention +80% via notifications & engagement flows.
- Mentored 4 mobile + 2 backend engineers to production readiness in <6 weeks.
- Promoted to Lead Developer within 2 months of joining.
Senior Flutter Developer
Smart-iX GmbHMar 2022 — Feb 2023- Led rewrite of SmartLiving app fi avoided bankruptcy & enabled €3M acquisition.
- Built Tru.Store 2.0, integrated into 28,000+ TOGG EVs, demoed to Turkish President.
- Delivered dual-screen car app communication (first of its kind for TOGG).
- Developed native Android car apps used in Porsche, Volkswagen, TOGG.
Senior Flutter Developer
Rezme Inc.Aug 2019 — Apr 2022- Migrated messy GetX app fi clean BLoC architecture, stabilizing app by 90%.
- Fixed critical performance issues, leading to 20% marketplace equity sale.
- Rebuilt UX & backend integration fi eliminated customer-reported crashes.
Education
B.Sc. Computer Science
University of NigeriaEnugu, Nigeria2018 — 2021
Similar developers
We have moreWith similar skills.
Other vetted developers with similar skills and experience
Pakistan
SwiftObjective-CGitNodeJS
Ghana
SwiftFlutterKotlinNodeJS