Mobile Developer

Open to full-time
Bio

Muazu A is a Mobile Developer with over 6 years of experience specializing in React Native engineering. He utilizes technologies such as React Native, TypeScript, Redux Toolkit, and Node.js to build scalable mobile applications and backend services. Muazu is proficient in CI/CD automation using GitHub Actions and Fastlane, and implements secure architecture designs with a focus on testing using Jest, Detox, and Appium. At Topship Africa, Muazu re-architected an app to serve 30K monthly users across 200+ countries, achieving a 98% delivery-tracking accuracy. While at Ebanqo Inc., he improved app performance on low-end devices, achieving a 15 fps startup on 2 GB-RAM Android phones and reduced release cycles from 48 hours to 3 hours. Muazu holds a BSc in Mathematical Sciences from Federal University Lokoja, Nigeria, and a Diploma in Software Engineering from Decagon. He is Scrum Certified and is well-suited for roles involving cross-platform mobile development and backend integration projects.

Expertise
ReactTypeScriptReact NativeNext.jsNode.jsSwiftJavaScriptJavaObjective-CCSSRelational DatabaseDocument DatabaseSQLAWSGitGraphQL
Video Intro
Assessments
APPLICANT AVG · 54%MUAZU · 95%0255075100TopASSESSMENT SCORE (0–100)

General Coding and Video Assessment

(95/100)
  • Book Availability Checker for Library Web ApplicationMedium
  • Debugging a JavaScript Mortgage Payment Calculator for Real Estate ApplicationsEasy
  • Manage State in Large React Native ApplicationsMedium
  • Optimize Performance in E-commerce React Native ApplicationMedium
Projects

Topship App

International & local logistics platform Link to play store: https://play.google.com/store/apps/details?id=com.topship Link to App Store: https://apps.apple.com/ng/app/topship/id1643993775

eBanqo for Business

Conversational engagement platform Link to Playstore: https://play.google.com/store/apps/details?id=com.ebanqocustomerserviceapp&hl=en&gl=US Link to App store: https://apps.apple.com/ng/app/ebanqo-for-business/id1559207547

Raum Africa

Short-term rental/property management & booking Link : get links to both apps on both stores here: https://raum.africa

Loopscribe

AI-powered note-taking app Link to Play store: https://play.google.com/store/apps/details?id=com.loopscribe Link to App store: https://apps.apple.com/us/app/loopscribe/id1667459726

Experience

  1. Senior React Native Engineer

    Topship AfricaFeb 2024 — Present
    • Re-architected app to Bareflow, serving 30K monthly users across 200+ countries, and implemented offline-first sync via React Query.
    • Developed ExoPlayer native bridge and background geolocation uploads; improved delivery-tracking accuracy from 60% to 98%.
    • Delivered 92% test coverage on core flows (Jest, RNTL, Detox), reducing nightly crash rate by 45%.
    • Mentored four mid-level engineers, introduced Clean-architecture patterns and Redux Toolkit modules.
    ReactReact NativeZustandTypescriptRedux ToolkitReact Native CLI & EXPOAiKotlinSwiftxcodeAndroid studiogit & GithubJiraSentryCryptozodReact queryFastlaneOTA UpdatesJestNode.js

  2. Lead React Native Engineer

    Ebanqo Inc.Sep 2022 — Feb 2024
    • Used Profiling mechanisms to improve lagging and performance issues on lower phones, achieving 15 fps startup on 2 GB-RAM Android and 40% lower buffer times.
    • Integrated AppFlyer + Firebase funnels, driving a 25% MoM increase in referral installs.
    • Established LaunchDarkly feature-flagging & A/B tests, lifting engagement by 12%.
    • Automated CI/CD with GitHub Actions + Fastlane + Bitrise; slashed release cycle from 48 hrs to 3 hrs and cut regressions by 50%.
    React NativeTypescriptRedux toolkitZustandFastlaneReactNext jsSwiftKotlinJest

  3. Lead Mobile Engineer

    Koyo NationNov 2020 — Sep 2022
    • Launched client dashboard with WebSocket chat, cutting support tickets by 50% and raising DAU by 18%.
    • Implemented MVVM/Clean standards, linting & pre-commit hooks—boosted SonarQube quality score by 30%.
    • Integrated Crashlytics & Segment, enabling real-time error tracking and usage dashboards.
    React Native Cli & ExpoReactTypescriptRedux toolkit

  4. Co-Founder & CTO (Full stack engineer ) React Native heavy

    CentiivDec 2019 — Dec 2024
    • Delivered RN crypto-wallet with MFA and on-device encryption, achieving SOC-2 readiness and 99.8% uptime.
    • Built Node.js + WebSocket services for instant transaction updates, halved settlement latency.
    • Contributed to open-source RN crypto libraries.
    ReactReact NativeNext jsTypescriptMetamaskWalletConnectweb3 connectivity on mobileReduxAndroid profiler

  5. React/React Native developer

    Cyclos MartJan 2018 — Nov 2019
    • Increased app reliability by 70% via targeted bug fixes and memory optimization with Hermes & MMKV.
    • Streamlined Play Store/App Store releases using Fastlane & Bitrise—reduced deployment friction by 60%.
    React NativeReactReduxTypescriptgit & github
Education

  1. BSc, Mathematical Sciences

    Federal University Lokoja, NigeriaNigeria2014 — 2018

  2. Diploma in Software Engineering

    DecagonLagos, Nigeria2020 — 2020

  3. Scrum Certified

    ScrumStudyRemote2021 — 2021
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