I'm a Senior Mobile App Developer ๐ŸŒŸ with over 4+ years of experience ๐Ÿš€ I help startups and businesses craft intuitive and stunning mobile apps without compromising quality. Flutter Developer | Cross Platform Engineer | Android & iOS Service ๐Ÿ’ผโ›๏ธ With my over 4 years of professional experience in Mobile Applications Development, I've had the incredible opportunity to work with different teams from different companies on a number of diverse projects that have further sharpened my prowess in the realm of Mobile Applications Development. Having been the brain behind many user-engaging apps, enterprise solutions, birthing an ordinary conceptualized idea to life from merely an idea to deployment is a great achievement that makes me stand out and would forever be proud of. Beyond just writing the code that "works", I've always been committed to excellence, leveraging cutting-edge technologies, both those majorly within my stack, and also from third parties in form of libraries or SDKs. Adding flavour to my competency is my crave for wanting my apps not just to meet expectations, but also exceed it by integrating some other cool and interesting features that makes my team wowed. One of this is usually in form of me enabling theming and adding cool, smooth transition animations. As I look forward to a potential role here, I look forward to further letting my creativity serve, soothe and quenches the thirst of wider audience, which is what I'm always proud of. With my proven track record of delivering results and a steadfast dedication to excellence, I am confident in my ability to drive impactful change and propel a prospective company/team I'd be working with towards new heights of success.โ€ฆ

Abdullah Opadeji O.

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I'm a Senior Mobile App Developer ๐ŸŒŸ with over 4+ years of experience ๐Ÿš€ I help startups and businesses craft intuitive and stunning mobile apps without compromising quality. Flutter Developer | Cross Platform Engineer | Android & iOS Service ๐Ÿ’ผโ›๏ธ With my over 4 years of professional experience in Mobile Applications Development, I've had the incredible opportunity to work with different teams from different companies on a number of diverse projects that have further sharpened my prowess in the realm of Mobile Applications Development. Having been the brain behind many user-engaging apps, enterprise solutions, birthing an ordinary conceptualized idea to life from merely an idea to deployment is a great achievement that makes me stand out and would forever be proud of. Beyond just writing the code that "works", I've always been committed to excellence, leveraging cutting-edge technologies, both those majorly within my stack, and also from third parties in form of libraries or SDKs. Adding flavour to my competency is my crave for wanting my apps not just to meet expectations, but also exceed it by integrating some other cool and interesting features that makes my team wowed. One of this is usually in form of me enabling theming and adding cool, smooth transition animations. As I look forward to a potential role here, I look forward to further letting my creativity serve, soothe and quenches the thirst of wider audience, which is what I'm always proud of. With my proven track record of delivering results and a steadfast dedication to excellence, I am confident in my ability to drive impactful change and propel a prospective company/team I'd be working with towards new heights of success.โ€ฆ

Available to hire

Iโ€™m a Senior Mobile App Developer ๐ŸŒŸ with over 4+ years of experience ๐Ÿš€

I help startups and businesses craft intuitive and stunning mobile apps without compromising quality. Flutter Developer | Cross Platform Engineer | Android & iOS Service ๐Ÿ’ผโ›๏ธ

With my over 4 years of professional experience in Mobile Applications Development, Iโ€™ve had the incredible opportunity to work with different teams from different companies on a number of diverse projects that have further sharpened my prowess in the realm of Mobile Applications Development.
Having been the brain behind many user-engaging apps, enterprise solutions, birthing an ordinary conceptualized idea to life from merely an idea to deployment is a great achievement that makes me stand out and would forever be proud of.
Beyond just writing the code that โ€œworksโ€, Iโ€™ve always been committed to excellence, leveraging cutting-edge technologies, both those majorly within my stack, and also from third parties in form of libraries or SDKs.
Adding flavour to my competency is my crave for wanting my apps not just to meet expectations, but also exceed it by integrating some other cool and interesting features that makes my team wowed. One of this is usually in form of me enabling theming and adding cool, smooth transition animations.
As I look forward to a potential role here, I look forward to further letting my creativity serve, soothe and quenches the thirst of wider audience, which is what Iโ€™m always proud of.
With my proven track record of delivering results and a steadfast dedication to excellence, I am confident in my ability to drive impactful change and propel a prospective company/team Iโ€™d be working with towards new heights of success.

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Experience Level

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Language

English
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Work Experience

Flutter Developer at ProjectBist
August 31, 2024 - October 6, 2025
Single-handedly built over 90% of the core functionality of the ProjectBist app using the Flutter framework. Integrated several APIs, third-party libraries and SDKs (REST APIs, Cloud Functions, Cloud Storage, Firebase Cloud Messaging, Socket.IO) for real-time messaging and more. Contributed to end-to-end product flow, UI/UX, and backend/API design; enabled an iterative integration process and introduced an AI-assisted feature using a pre-built LLM from Groq Cloud.
Tutor at Google Developer Student Club (GDSC), University of Lagos
October 1, 2023 - Present
Led interactive sessions on Flutter mobile app development and mentored students on practical skills and project work.
Flutter Developer at SmartRob Technologies
December 1, 2023 - October 6, 2025
Developed cross-platform mobile applications using Flutter; collaborated with cross-functional teams; implemented high-performance UI, integrated REST APIs and Firebase services; contributed to architecture decisions and SDLC improvements; enhanced app performance and reliability.
Flutter Developer at ProjectBist
August 1, 2024 - October 6, 2025
Single-handedly built over 90% of core functionality for the ProjectBist app; integrated multiple internal REST APIs; overhauled UX/UI flows for smooth onboarding; implemented real-time syncing and optimized data access; collaborated with backend to align API design.

Education

BSc in Computer Science at University of Lagos (UNILAG), Nigeria
January 11, 2030 - October 6, 2025
BSc in Computer Science at University of Lagos (UNILAG)
January 11, 2030 - October 6, 2025

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Professional Services, Media & Entertainment, Other
    paper ProjectBist Mobile App

    ๐Ÿ“ฑ Project: ProjectBist

    Role: Lead Mobile Application Developer
    Platform: Flutter (Android & iOS)
    Tech Stack: Flutter โ€ข Dart โ€ข Firebase โ€ข Cloud Firestore โ€ข Kotlin โ€ข Java


    ๐Ÿงฉ Overview

    ProjectBist is a platform that connects students, professionals, and researchers for seamless research collaboration. It enables users to hire expert researchers, access verified materials, communicate securely, and manage payments via an escrow system. The app ensures transparency, quality, and flexibility for all users.


    ๐Ÿ›  My Role & Contributions

    As the Lead Mobile Developer, I built ProjectBist entirely from scratch โ€” from concept to deployment โ€” handling everything from architecture to Play Store release.

    1. Architecture & Setup

    • Designed a clean, modular architecture separating UI, logic, and data layers.
    • Integrated BLoC/Cubit for predictable state management.
    • Set up Firebase services: Authentication, Cloud Firestore, and Storage.

    2. Core Development

    • Developed the complete cross-platform Flutter app supporting Android and iOS.
    • Implemented major features:
      • Authentication: Email and Google sign-in.
      • Research Marketplace: Post, search, and bid for research jobs.
      • Escrow Payment System: Ensured secure, transparent transactions.
      • Real-time Chat: Built using Firebase Firestore streams.
      • Notifications: Integrated Firebase Cloud Messaging (FCM).
      • AI Tools: Connected APIs for plagiarism and AI content checks.

    3. Database & Cloud Integration

    • Designed Firestore data structure for scalability and performance.
    • Wrote Firebase Security Rules for safe, role-based access.
    • Used Kotlin/Java Cloud Functions to automate escrow releases and notifications.

    4. Deployment & Optimization

    • Configured platform-specific build settings for both Android and iOS.
    • Managed Play Store release โ€” signing, testing, and publishing.
    • Optimized UI performance and Firebase queries for responsiveness.
    • Added error handling and analytics for better stability and monitoring.

    ๐Ÿš€ Outcome

    • Successfully launched on Google Play Store: [ProjectBist App](https://www.twine.net/signin
    • Built a scalable, real-time platform empowering thousands of users to collaborate on research efficiently.
    • Delivered a reliable, secure, and performance-optimized app built entirely with modern Flutter and Firebase technologies.

    ๐Ÿงฐ Skills Applied

    Flutter โ€ข Dart โ€ข Firebase (Auth, Firestore, Storage, FCM) โ€ข Kotlin โ€ข Java โ€ข iOS Development โ€ข Mobile Enterprise Architecture