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Senior Flutter (Dart) Mobile Engineer with 7+ years building robust cross-platform mobile applications for iOS, Android, Web, and macOS. Experienced in state management, complex API/database integrations, performance optimization, and leading agile delivery while mentoring engineers. Led end-to-end development across authentication, secure data handling, analytics/crash reporting, CI/CD, and app release lifecycles. Skilled in integrating Firebase/REST services and delivering responsive, scalable user experiences across multiple platforms and devices.…Senior Flutter (Dart) Mobile Engineer with 7+ years building robust cross-platform mobile applications for iOS, Android, Web, and macOS. Experienced in state management, complex API/database integrations, performance optimization, and leading agile delivery while mentoring engineers. Led end-to-end development across authentication, secure data handling, analytics/crash reporting, CI/CD, and app release lifecycles. Skilled in integrating Firebase/REST services and delivering responsive, scalable user experiences across multiple platforms and devices.

Miriam Onuoha

Programmer, App Developer, Web Developer, +3

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Senior Flutter (Dart) Mobile Engineer with 7+ years building robust cross-platform mobile applications for iOS, Android, Web, and macOS. Experienced in state management, complex API/database integrations, performance optimization, and leading agile delivery while mentoring engineers. Led end-to-end development across authentication, secure data handling, analytics/crash reporting, CI/CD, and app release lifecycles. Skilled in integrating Firebase/REST services and delivering responsive, scalable user experiences across multiple platforms and devices.…Senior Flutter (Dart) Mobile Engineer with 7+ years building robust cross-platform mobile applications for iOS, Android, Web, and macOS. Experienced in state management, complex API/database integrations, performance optimization, and leading agile delivery while mentoring engineers. Led end-to-end development across authentication, secure data handling, analytics/crash reporting, CI/CD, and app release lifecycles. Skilled in integrating Firebase/REST services and delivering responsive, scalable user experiences across multiple platforms and devices.

Available to hire

Senior Flutter (Dart) Mobile Engineer with 7+ years building robust cross-platform mobile applications for iOS, Android, Web, and macOS. Experienced in state management, complex API/database integrations, performance optimization, and leading agile delivery while mentoring engineers.

Led end-to-end development across authentication, secure data handling, analytics/crash reporting, CI/CD, and app release lifecycles. Skilled in integrating Firebase/REST services and delivering responsive, scalable user experiences across multiple platforms and devices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Language

English

Advanced

Work Experience

Lead Flutter Developer at Bright Fellowship Inc.

June 1, 2024 - December 31, 2025

Led the development of a production-grade fintech mobile application (PocketMoni), actively used in Nigeria with 10k+ downloads on Google Play. Built and maintained cross-platform mobile features using Flutter with structured state management for scalability and performance. Implemented secure authentication and verification workflows, including biometric verification, to meet fintech security standards. Integrated RESTful APIs to support payment processing and core financial operations. Contributed to application security through secure data handling and system protection measures. Collaborated using GitHub for version control and Microsoft Azure for deployment and cloud services.

Lead Flutter Developer at Lead Flutter Developer

April 1, 2024 - May 1, 2026

Led development of production-grade, cross-platform Flutter applications. Built scalable state management patterns and integrated complex REST APIs and databases. Implemented secure authentication and verification workflows (including biometric where applicable) and improved app security via secure data handling and system protection measures. Contributed to app performance tuning (e.g., caching/lazy loading), analytics/crash reporting, and release lifecycle management across Google Play and Apple App Store. Mentored and onboarded junior developers, conducted code reviews, enforced code quality, and collaborated with cross-functional teams (UI/UX and backend) to deliver responsive, accessible features across devices. Worked with Git-based version control and cloud deployment workflows.

Product Manager Intern at Bright Fellowship Inc.

April 2, 2022 - March 2, 2024

Supported product management activities, collaborated with cross-functional teams to define features, and contributed to the fintech mobile application portfolio. Assisted with feature prioritization, roadmap planning, and project coordination. Engaged with backend teams to align RESTful APIs and data models, and contributed to product documentation and user stories.

Software Engineer / Product / Mobile Developer at Interim / Production Manager (as stated)

January 1, 2018 - January 1, 2022

Worked on mobile/production initiatives including building and maintaining cross-platform apps and integrating REST APIs and secure authentication. Implemented push notifications with Firebase, used state management to optimize performance and scalability for iOS/Android. Built modular Flutter widgets and automated testing pipelines to improve release reliability. Developed accessible interfaces for visually impaired users in collaboration with medical professionals, and supported UI/UX delivery for responsive layouts. Implemented real-time data sync, offline functionality, and state management using GetX; supported mentoring, code reviews, and performance improvements.

Mobile Engineer (Flutter)

January 1, 2018 - February 1, 2022

Built and maintained cross-platform mobile features using Flutter with structured state management for scalability and performance. Implemented reusable widgets and custom animations, integrated RESTful APIs for payments and core finance operations, and contributed to application security through secure data handling and system protection. Collaborated using Bitbucket and cloud services for deployment. Also integrated blockchain-based services for secure transaction verification to improve transparency and auditability within the PocketMoni ecosystem.