Open to opportunities

Jumbo Ubong

@jumboubong

Message

Flutter Frontend Engineer building secure, scalable mobile apps with clean architecture.

Nigeria

Message

What I'm looking for

I’m looking for a role where I can build secure, scalable Flutter apps with clean architecture—owning fintech-style flows like authentication, onboarding, and wallet/transactions—while delivering high-performance, maintainable UI.

I’m a Flutter Frontend Engineer focused on building secure, scalable mobile applications with clean architecture and strong performance. I translate product requirements into intuitive, maintainable Flutter solutions, especially in fintech-style flows.

Since 2021, I’ve built and shipped cross-platform Flutter apps on a contract/independent basis. I implemented secure authentication, onboarding, and wallet-style user flows, and I delivered transaction-ready UI including transaction lists and checkout-oriented interfaces.

I’m strong in MVVM and modern state management—using Provider, Riverpod, and Bloc—to improve code quality and maintainability. I also work with REST/JSON and Firebase, and I value clean UI/UX with responsive design and custom animations.

Experience

Work history, roles, and key accomplishments

Current

Flutter Frontend Engineer

Current

Jumbo

Jan 2021 - Present (5 years 5 months)

Built and shipped cross-platform Flutter apps focused on performance and scalability, implementing secure authentication, onboarding, and wallet-style user flows. Developed transaction list, cart, and checkout-ready interfaces using clean architecture and MVVM.

Flutter Dart BLoC Provider MVVM REST APIs JSON Firebase