Usman Bello

Results-driven Mobile Engineer with 5+ years of experience building and shipping cross-platform applications using Flutter, Dart, and React Native across fintech, retail, social, and e-commerce sectors. Proven expertise in state management (Provider, BLoC, GetX, Redux), REST API integration, Firebase, Sentry, and performance optimization. Delivered production-grade apps including POS systems, cross-border payment platforms, streaming apps, and social networking tools — published on both Google Play and the Apple App Store.

Comfortable working in remote, Agile-driven environments with cross-functional teams across multiple time zones.

Mobile Engineer at Bright Fellowship (2022-06 – 2025-05)

• Designed and built core social features — text/image/video posts, likes, comments, follows, and shares — serving a growing user base.
• Architected a real-time virtual meeting feature using agora_rtc_engine and just_audio_background, enabling live audio sessions with multiple participants.
• Reduced video upload sizes by up to 60% via in-app video compression while preserving quality, decreasing storage costs and improving upload speed.
• Collaborated with backend and design teams in an Agile/Scrum environment to deliver features on schedule.

Flutter Developer at Uridium Technology (2023-01 – 2024-02)

• Built and deployed a full-featured mobile POS application for retail operations, handling real-time inventory management and sales transaction processing.
• Integrated multi-payment support (cash, card, mobile transfers) and barcode scanning for fast product lookup.
• Designed a responsive UI for both phones and tablets used at retail counters, improving cashier efficiency.
• Implemented real-time receipt generation and Bluetooth printing via connected receipt printers.

Mobile Engineer at Official Brand Identity (2021-12 – 2022-12)

• Collaborated with cross-functional teams to gather requirements, define solutions, and ship new features that improved user retention.
• Implemented virtual card customization using Firebase, enabling personalized card experiences with different names, colors, and patterns.
• Integrated Identity Pass API for BVN verification during user onboarding, ensuring regulatory compliance.

Full Stack Engineer at Darajeph Technologies (2020-04 – 2021-02)

• Mentored junior mobile developers and contributed to client app development, boosting client satisfaction ratings by 12%.
• Partnered with UI/UX designers and QA testers to optimize performance and user experience, increasing new and returning users by 50%.
• Applied Agile methodologies (Scrum, Jira) to manage sprints, backlogs, and cross-team delivery.

Bachelor of Science (B.Sc.) in Computer Science – Kwara State University (KWASU) (2019-11 – 2022-09)