I will app maintenance, bug fixes and feature upgrades

Z
zunaira_haroon
Z
zunaira_haroon
Zunaira Haroon
app maintenance, bug fixes and feature upgrades
Full Screen
app maintenance, bug fixes and feature upgrades

About this gig

Already have an app or web app built in React Native, React, or the MERN stack? With 6+ years of hands-on experience, I can step into an existing codebase, fix bugs, optimize performance, or add new features without disrupting what already works.


What I Offer:

  • Bug fixing and performance optimization
  • New feature development on existing codebases
  • Code review and refactoring
  • Library/dependency upgrades (React Native, React, Node.js)


What I Require from You:

  • Access to your existing codebase/repo
  • Description of the issue or feature request
  • Any relevant documentation


My Commitment:

  • Careful, non-breaking changes to live apps
  • Clear communication on what was changed and why
  • Fast response time
  • Ongoing support availability


Full portfolio: https://zonara-portfolio.vercel.app/

  • App type

    • Hybrid

  • Programming language

    • JavaScript
    • TypeScript
    • HTML
    • React Native

  • Frameworks

    • React Native

  • Purpose

    • Chat
    • Restaurant
    • Shopping
    • Social networking
    • Health & fitness
    • Maps & navigation
    • Education
    • Ecommerce
    • Quiz
    • Real estate

  • Tools

    • Power apps
    • Expo
    • Android Studio
    • Xcode
    • Firebase
    • Visual Studio Code

  • Expertise

    • Cross browser/Device compatibility
    • Performance
    • Ads & monetization
    • Data storage
    • Firebase
    • API integration

Get to know Zunaira Haroon

Zunaira Haroon

Don't Wait for opportunity, Create it!

  • FromPakistan
  • Member sinceOct 2018

  • Languages

    English
Senior Mobile Application Engineer with 6+ years of experience in React Native and cross-platform development, plus 3 years in frontend development. Skilled in React Native, React.js, Node.js, Express, and MongoDB. Experienced in delivering end-to-end solutions, from requirements and architecture to development, testing, and release. Proficient in converting Figma/Adobe XD designs into pixel-perfect iOS and Android apps. Strong in API integration, clean architecture, code reviews, mentoring, and AI-assisted development using Claude, Cursor, and Kiro to improve productivity and code quality.

My Portfolio

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