Obi Fred
@obifred
Senior Frontend & Mobile Developer delivering secure, high-performance React/React Native apps across fintech and healthcare.
What I'm looking for
I’m a results-driven Senior Frontend & Mobile Developer with 5+ years of experience shipping production-ready web and mobile applications across fintech, healthcare, edtech, and e-commerce. I specialize in React.js, React Native, Next.js, Vue.js, and TypeScript, with a strong focus on performance, reliability, and security.
At Payecards, I built and shipped a React Native (Expo) fintech app for iOS and Android, integrating secure payment gateway and financial APIs. I implemented biometric authentication (Face ID / fingerprint), improved error handling and retry logic to reduce transaction error rates by ~30%, and cut Android build times by 25% through Gradle and CI/CD optimisations.
As Engineering Lead at Ingryd Academy (EdTech), I led a team of 4 frontend engineers, introducing code-review standards and sprint rituals that reduced deployment defects by 35%. I architected and delivered a Vue.js student management system for 3,000+ learners, and rebuilt analytics dashboards to cut report generation time from 8 seconds to under 2 seconds.
Across roles, I’ve delivered real-time dashboards and production apps used by tens of thousands of users—including D3.js/Chart.js analytics, health-data integrations, and component conversions that accelerate delivery. I also enjoy translating product needs into scalable frontend architecture and maintainable UI systems, whether building from scratch or improving existing codebases.
Experience
Work history, roles, and key accomplishments
Engineering Lead
Ingryd Academy
Jan 2025 - Present (1 year 5 months)
Led a team of 4 frontend engineers, introducing code-review standards and sprint rituals that reduced deployment defects by 35%. Architected and delivered a Vue.js student management system for 3,000+ learners and rebuilt analytics dashboards, cutting report generation time from 8 seconds to under 2 seconds.
Frontend & Mobile Developer
Hazon Holdings
Mar 2023 - Mar 2025 (2 years)
Delivered Wellness Plus across web and mobile using React Native (Expo) and Flutter for 10,000+ MAUs, building Flutter modules that achieved smoother 60fps animations. Converted 30+ Figma screens into production-ready components, built real-time clinician dashboards with D3.js/Chart.js, and improved average page load time by 45% via lazy loading and code splitting.
Software Developer / UI-UX Designer
Paylode Service Limited
Apr 2023 - Dec 2023 (8 months)
Designed and built responsive healthcare admin interfaces in Vue.js, adopted by 500+ internal staff. Developed analytics dashboards that surfaced KPIs previously tracked manually in spreadsheets.
Frontend & Mobile Developer
Bluechip Technologies
Nov 2022 - Nov 2023 (1 year)
Delivered production applications across fintech, edtech, and internal tooling, including Cash Complete, an enterprise cash-management platform used across 5 Nigerian states. Built a React-based internal bug tracker that reduced manual QA reporting overhead by 60%, and optimized D3.js rendering for 50,000+ rows to cut chart draw time from 3.2s to 0.8s.
Frontend & Mobile Developer
Efficion Consulting
Jan 2022 - Apr 2023 (1 year 3 months)
Built the Arad social safety platform from scratch using React Native and React.js, onboarding 2,000+ community members in the first 3 months. Implemented Redux to reduce prop-drilling-related bug reports by 50% and delivered features using 2-week Kanban sprints with consistent on-time delivery.
Frontend Developer
Wopo Group
Jan 2020 - Apr 2021 (1 year 3 months)
Developed a Vue.js + Tailwind CSS web app for FixOnTime, a service marketplace connecting 500+ customers with local vendors. Built a reusable component library that cut feature development time by 20%.
Education
Degrees, certifications, and relevant coursework
Olusegun Agagu University of Science and Technology
Bachelor of Technology, Computer Science
2015 - 2021
Earned a B.Tech in Computer Science at Olusegun Agagu University of Science and Technology from 2015 to 2021.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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