Mobile Developer

Open to full-time
Bio

Hamid O is a Mobile Developer with several years of experience in building scalable and secure mobile applications. He primarily works with Flutter, Dart, Kotlin, and Java, creating mobile applications that include features like KYC/KYB onboarding, payment gateway integration, and real-time notifications. Hamid employs state management tools such as Bloc and Riverpod, and utilizes frameworks like Android Jetpack Compose. His development process is enhanced by his experience with Firebase, AWS, and Git. At Dukka, Hamid increased KYC/KYB onboarding success by 55% and improved sales efficiency by 60% through the "Sell on the Go" feature. During his time at Sankore Investments, he engineered an onboarding process that boosted user sign-ups by 70% and developed payment systems that improved donation retention by 60%. Hamid holds a Bachelor of Technology in Computer Engineering from Ladoke Akintola University of Technology. He is well-suited for roles that require strong mobile development skills, particularly in financial and consumer-facing applications.

Expertise
FlutterJavaSQLGitAWS
Video Intro
Assessments
APPLICANT AVG · 51%HAMID · 90%0255075100TopASSESSMENT SCORE (0–100)

General Video Assessment

(90/100)
  • Manage State in Flutter with Nested ComponentsMedium
  • Design a Real-Time Financial Data Flutter ApplicationMedium
  • Design an Efficient API Integration Strategy for E-CommerceMedium
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

Experience

  1. Mobile Developer

    DukkaFeb 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%
    FlutterDartKotlinSwiftUIFirebase

  2. Mobile Developer

    Sankore Investments - KadaAug 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%
    Flutter, DartKotlinJavaSpringboot

  3. Mobile Developer

    First Ally Investment Capital - MyInvestarJun 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%
    FlutterDart

  4. Android Developer Intern

    HNG InternshipJul 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
    JavaAndroid XMLKotlin

  5. Android Developer Intern

    Google Africa Developer ScholarshipAug 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%
    Android NativeJavaKotlin
Education

  1. Bachelor of Technology in Computer Engineering

    Ladoke Akintola University of TechnologyOgbomoso, Nigeria2014 — 2020
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