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Emeka Okezie

Senior Frontend Engineer5 years experienceLagos, Nigeria
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Professional Summary

Software engineer with 5 years of hands-on experience building scalable mobile and web applications with modern JavaScript frameworks and backend technologies. I architect solutions that balance performance, usability and business needs, and I have shipped production apps across fintech, social and travel. Comfortable across the stack with React Native, React (Next.js), Node.js, TypeScript, MongoDB and SQL, with strong REST and GraphQL API design, CI/CD and cloud deployment.

Experience

Experience

Frontend Developer (Web & Mobile) @ NASD Plc

Lagos, Nigeria

  • Led the frontend team building a cross-platform securities trading platform: React Native apps for iOS and Android plus a responsive Next.js web app.
  • Integrated REST, GraphQL and WebSockets for secure authentication, real-time market trades and live portfolio updates.
  • Owned mobile release pipelines with Fastlane and GitHub Actions, automating builds and store deployments to cut release cycle times.
  • Optimised performance with code splitting, lazy loading and efficient state management (Redux Toolkit, Zustand); monitored production with Sentry for thousands of users.
  • Mentored junior engineers and set the standards for frontend architecture, testing and performance.
React NativeNext.jsTypeScriptRedux ToolkitZustandNode.jsWebSocketsGraphQLSentryFastlane

Frontend Developer (Web & Mobile) @ JustTalk

Liverpool, United Kingdom

  • Built and shipped a cross-platform React Native audio-social app with consistent UI across iOS and Android.
  • Added push notifications via Firebase Cloud Messaging and APNs, lifting user retention by over 30%.
  • Set up Fastlane and GitHub Actions CI/CD, cutting release cycles from weeks to days.
  • Developed responsive Next.js web with SSR and SSG for performance and SEO; mentored the team and reduced bug counts by around 20%.
React NativeNext.jsTypeScriptTailwindReact QueryFirebaseDeep LinkingFastlane

Software Engineer (Contract) @ Hotel Engine

Denver, United States

  • Built reusable, scalable UI components with Chakra UI, Next.js and TypeScript.
  • Managed server state, caching and real-time updates with React Query.
  • Improved perceived performance and UX with skeleton loading states, working closely with design, backend and QA.
Next.jsChakra UITanstack QueryTypeScriptNode.jsPostgreSQL

Full-stack Developer (Contract) @ DigiEx

California, United States

  • Translated Figma designs into modular React components using hooks, SCSS, Styled Components and Material UI.
  • Built RESTful APIs with Node.js and Express, and designed PostgreSQL and MongoDB schemas for scale.
  • Wrote unit, integration and end-to-end tests with Jest and Cypress; deployed to AWS, Heroku and Vercel with CI/CD.
ReactNode.jsExpressPostgreSQLMongoDBStyled ComponentsJestCypress

Mobile Developer @ WhokUp

Lagos, Nigeria

  • Designed and shipped a geolocation social app with geofencing, letting users check in and share experiences by location.
  • Implemented real-time location tracking, interactive maps and location-based APIs across iOS and Android.
  • Engineered deep linking and event-based push notifications with battery-efficient background location services.
React NativeGoogle Locations APIGoogle GeofencePush NotificationsReact NavigationFastlane

Skills

Skills

Frontend

ReactNext.jsTypeScriptJavaScriptTailwindStyled ComponentsBootstrap

Mobile

React NativeReact Native CLIExpoFlutterReact Navigation

Backend

Node.jsExpressNestJSREST APIsGraphQLWebSockets

Data & State

MongoDBPostgreSQLRedisFirebaseRedux ToolkitZustandTanstack Query

Testing

JestVitestReact Testing LibraryCypressPlaywrightSentry

DevOps

GitGitHub ActionsFastlaneDigitalOceanDocker

Education

Education

Rivers State University of Science and Technology

Bachelor of Engineering