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I'm a Mobile Engineer with 6+ years of experience building production-grade mobile apps. I specialize in Flutter. I've architected apps from scratch, led mobile teams, and shipped features used daily by real users across borders. Most of my work lives at the intersection of fintech and emerging markets, where performance, reliability, and trust aren't optional. My work has been featured in Google's #WeArePlay program and have mentored 30+ developers along the way. I care about clean architecture, maintainable code, and building things that actually work for the people using them. If that's the kind of engineer you're looking for, let's talk.…I'm a Mobile Engineer with 6+ years of experience building production-grade mobile apps. I specialize in Flutter. I've architected apps from scratch, led mobile teams, and shipped features used daily by real users across borders. Most of my work lives at the intersection of fintech and emerging markets, where performance, reliability, and trust aren't optional. My work has been featured in Google's #WeArePlay program and have mentored 30+ developers along the way. I care about clean architecture, maintainable code, and building things that actually work for the people using them. If that's the kind of engineer you're looking for, let's talk.

Joel Ovienloba

App Developer, Front-End Developer, Full Stack Developer, +2

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I'm a Mobile Engineer with 6+ years of experience building production-grade mobile apps. I specialize in Flutter. I've architected apps from scratch, led mobile teams, and shipped features used daily by real users across borders. Most of my work lives at the intersection of fintech and emerging markets, where performance, reliability, and trust aren't optional. My work has been featured in Google's #WeArePlay program and have mentored 30+ developers along the way. I care about clean architecture, maintainable code, and building things that actually work for the people using them. If that's the kind of engineer you're looking for, let's talk.…I'm a Mobile Engineer with 6+ years of experience building production-grade mobile apps. I specialize in Flutter. I've architected apps from scratch, led mobile teams, and shipped features used daily by real users across borders. Most of my work lives at the intersection of fintech and emerging markets, where performance, reliability, and trust aren't optional. My work has been featured in Google's #WeArePlay program and have mentored 30+ developers along the way. I care about clean architecture, maintainable code, and building things that actually work for the people using them. If that's the kind of engineer you're looking for, let's talk.

Available to hire

I’m a Mobile Engineer with 6+ years of experience building production-grade mobile apps. I specialize in Flutter. I’ve architected apps from scratch, led mobile teams, and shipped features used daily by real users across borders.
Most of my work lives at the intersection of fintech and emerging markets, where performance, reliability, and trust aren’t optional. My work has been featured in Google’s #WeArePlay program and have mentored 30+ developers along the way.
I care about clean architecture, maintainable code, and building things that actually work for the people using them. If that’s the kind of engineer you’re looking for, let’s talk.

Skills

Experience Level

Expert

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Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer - Engineering Analyst at PT Chat

April 16, 2024 - February 10, 2025

Architected cross-platform educational Flutter application using Clean Architecture with feature-first organization, serving parents supporting children's learning through AI-powered personalized activities Designed and implemented scalable REST API integration layer following Repository-DataSource pattern with functional error handling using Either monad for type-safe operations Built secure authentication system with encrypted local storage and automatic session management, protecting user data and maintaining seamless user experience Integrated Text-to-Speech service for accessibility features, expanding app usability for diverse learning needs Implemented push notification system with OneSignal, including iOS Notification Service Extension for rich media notifications Delivered multi-language support with Flutter's l10n/intl framework, enabling app usage across 5+ languages with runtime switching and persistent locale preferences Worked remotely with cross-functional team to deliver features from concept to production within sprint cycle

Software Developer & Mentor at Bells University of Technology

March 19, 2019 - July 5, 2023

Co-developed Clinic Management Software with integrated drug inventory and sales system using AngularJS, HTML, CSS, and JavaScript Designed and delivered comprehensive Flutter learning curriculum covering cross-platform development, testing, and deployment best practices Mentored 30+ junior developers in mobile app development, significantly improving their technical skills and career readiness Conducted code reviews and provided technical guidance on architecture, testing strategies, and deployment workflows