Summary
Hamid O, is a highly skilled Mobile Developer with a strong background in building scalable and secure applications using Flutter, Dart, Kotlin, Java, and SQL. He has hands-on experience with state management tools such as Bloc, Cubit, Provider, Riverpod, and GetX, and is proficient in frameworks like Android Jetpack Compose and Material Design. His work at Dukka, Sankore Investments (Kada), and First Ally Investment Capital demonstrates his expertise in implementing features such as KYC/KYB onboarding, payment gateway integration, wallet systems, multi-factor authentication, and real-time notifications. Hamid also has strong experience with Firebase, AWS, Git, Hive DB, and financial APIs, along with libraries like Flutterwave, Paystack, and Stripe. His portfolio includes impactful projects such as Weeshr, Onafriq, Flash Chat, and Clima, showcasing his ability to deliver both technical depth and user-focused design. With a Bachelor of Technology in Computer Engineering and multiple certifications in Android and Flutter development, Hamid brings a combination of technical excellence, problem-solving ability, and proven success in both financial and consumer-facing applications.
Meet Hamid O.
Assessment Scores
Great score on Manage State in Flutter with Nested Components, Difficulty Medium
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 a Mobile Application Feature for Item Fetching, Difficulty Medium
Great score on Debug and Enhance Weather Forecast Feature, Difficulty Medium
Great score on Debug and Enhance Event Fetching Feature, Difficulty Medium
Experience
Dukka
Mobile Developer
Full-Time
Feb 2024 — Aug 2025
Increased KYC/KYB seamless onboarding for businesses by 70%
Developed and optimized KYC/KYB features enabling thousands of businesses to set up wallets seamlessly, increasing onboarding success by 55%
Designed and implemented "Sell on the Go" feature for streamlined product sales, boosting sales efficiency by 60%
Refined PIN input keypad for POS terminals ensuring secure and error-free transactions, reducing card transaction errors by 45%
Developed comprehensive real-time notification system for business operations, enhancing response speed by 65%
Resolved critical issues across app and POS platforms including printer connectivity and authentication, improving auto receipt printing after card transaction by 50%
Technologies:
Flutter
Dart
Kotlin
SwiftUI
Firebase
Sankore Investments - Kada
Mobile Developer
Full-Time
Aug 2022 — Feb 2024
Engineered streamlined onboarding process with email/password and social login integration, increasing user sign-ups by 70%
Developed secure donation and recurring payment systems for school cause support, improving donation retention by 60%
Implemented community features including group chats and member messaging, enhancing user engagement by 50%
Integrated Naira and USD payment gateways for seamless transactions, reducing payment failures by 45%
Collaborated with UX/UI designers and product managers on platform development, accelerating feature delivery by 40%
Technologies:
Flutter, Dart
Kotlin
Java
Springboot
First Ally Investment Capital - MyInvestar
Mobile Developer
Part-Time
Jun 2022 — Aug 2022
Created comprehensive KYC system with multiple verification levels, improving compliance rate by 65%
Implemented multi-factor authentication including PIN and biometric methods, enhancing account security by 55%
Developed wallet system supporting bank transfers, cards, and withdrawals, increasing transaction volume by 60%
Built dynamic investment portfolio view for Naira and USD investments, boosting user retention by 50%
Coordinated with UX/UI teams on financial interface development, shortening design-to-release cycle by 40%
Technologies:
Flutter
Dart
HNG Internship
Android Developer Intern
Intern
Jul 2021 — Oct 2021
Led development team for Zuri DMs and Channels App, delivering 65% of planned features ahead of schedule
Built SQL databases and integrated with Android applications, reducing query execution time by 50%
Coordinated with cross-functional teams to meet project deadlines, achieving 70% milestone completion on time
Technologies:
Java
Android XML
Kotlin
Google Africa Developer Scholarship
Android Developer Intern
Intern
Aug 2019 — Feb 2020
Developed multi-screen NoteKeeper App using Android Studio, enhancing learning outcomes by 60%
Gained expertise in Android fundamentals including Activities, Fragments, and UI testing, improving project delivery efficiency by 45%
Technologies:
Android Native
Java
Kotlin
Projects
Weeshr
Developed comprehensive birthday gifting platform with wishlist creation and sharing capabilities
Dukka
Bookkeeping and payments made easy
Kada
Enhance your alumni experience with our Crowdfunding App
Education
Bachelor of Technology in Computer Engineering
2014 - 2020
Ladoke Akintola University of Technology
Ogbomoso, Nigeria
