I will fix bugs in react, angular, asp net core, and mern stack

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hashim_khan784
H
hashim_khan784
Hashim Khan

Level 1

fix bugs in react, angular, asp net core, and mern stack
Full Screen
fix bugs in react, angular, asp net core, and mern stack

About this gig

Are bugs, failing builds, or deployment errors slowing down your project?


Whether your React app is crashing, your Angular build is failing, your ASP.NET Core APIs are returning 500 errors, or your MERN stack deployment is stuckI will identify the root cause and fix it professionally.

As a Full-Stack Developer with hands-on industry experience building and deploying complex web applications, I don't just patch problems; I write clean, secure code to ensure the issue never returns.


What I Can Fix For You:


  • Frontend (React.js & Angular): Rendering issues, state management bugs, UI/UX glitches, routing problems, and broken components.
  • Backend (ASP.NET Core & Node.js/Express): REST API errors, failing endpoints, slow response times, and middleware issues.
  • Database & Authentication: SQL/NoSQL (PostgreSQL, MySQL, MongoDB) connection timeouts, complex query optimization, JWT token errors, and Spring Security/Auth flow issues.
  • Configuration & Deployment: CORS policy errors, VPS/IIS/Azure deployment crashes, environment variable misconfigurations, and build pipeline failures.


Let's get your application running smoothly again. Send me a message with your issue, and we will fix it today!

  • Website type

    • Business

  • Programming language

    • ASP.NET
    • Java
    • React
    • Angular
    • Node.js

  • Website features

    • Payment
    • Dashboard
    • Landing page
    • User Authentication
    • API integration
    • Database integration
Respect third-party rights

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Get to know Hashim Khan

Hashim Khan

Building Fast, Beautiful and Smart Websites That Make You Stand Out

4.8(16)

Level 1

  • FromPakistan
  • Member sinceMar 2024
  • Avg. response time1 hour
  • Last delivery1 week

  • Languages

    English, German, Spanish, French, Italian, Chinese
Hello, I’m Hashim Khan – a passionate Front-End Developer with 4+ years of experience turning creative ideas into high-performance, responsive, and visually stunning websites. I specialize in: Custom website design Pixel-perfect & mobile-first development SEO-optimized layouts for better Google ranking Fast loading speed & modern UI/UX Clean, maintainable front-end code Interactive features that engage users

My Portfolio

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