I will fix bugs and optimize your web application

T
thushanthan1202
T
thushanthan1202
Thushanthan
fix bugs and optimize your web application
Full Screen
fix bugs and optimize your web application

About this gig

Is a broken feature, slow database query, or deployment error stopping your web app from working?


I specialize in rapid full-stack bug fixing, database query optimization, and cloud deployment troubleshooting. Whether your app is failing API calls, or loading slowly due to unindexed database queries, I will trace the issue and apply a clean, lasting fix.


What I Can Fix & Optimize For You:


  • Frontend Bugs: State management issues, broken responsive layouts, CSS fixes, component re-render loops
  • Backend Errors: Node.js/Express and Python/FastAPI crashes, broken REST endpoints, CORS errors, auth/JWT failures
  • Database Optimization: Slow SQL/MongoDB queries, missing database indexes, connection pool leaks
  • Deployment & CI/CD: Vercel, AWS, Render, Netlify, Docker environment variable issues, build failures


Why Choose This Service?

  • Clean Code: No temporary patchesI fix root causes and refactor dirty code
  • Complete Transparency: Detailed breakdown of what caused the issue and how it was fixed


Note: Please message me with error logs, code snippets, or access details BEFORE placing an order so I can confirm the scope and offer a quick custom turnaround time!

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Design
    • Source control

  • Frontend framework

    • AngularJS
    • Next.js
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Express.js
    • FastAPI
    • Next.js
    • Node.js
    • Django REST framework

Get to know Thushanthan

Thushanthan

Full Stack Web Developer , Software Developer , AI Integration Engineer

5.0(3)
  • FromSri Lanka
  • Member sinceDec 2022
  • Avg. response time1 hour
  • Last delivery3 years

  • Languages

    Tamil, Sinhala, English
Hi! I’m Thushanthan, a MERN Stack Developer with 3+ years of experience turning ideas into high-quality web applications. I specialize in building SaaS platforms, responsive web apps, and transforming Figma designs into fully functional applications. I’ve successfully delivered projects across industries like ecommerce, fintech, food delivery, healthcare, and travel, helping businesses scale and streamline operations. My focus is on clean, maintainable code, fast performance, and seamless user experiences, ensuring your vision becomes a reality.

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