I will fix bugs in your react, next js, or node js web app fast

S
senthilragu
S
senthilragu
Senthilnathan R
fix bugs in your react, next js, or node js web app fast
fix bugs in your react, next js, or node js web app fast
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fix bugs in your react, next js, or node js web app fastfix bugs in your react, next js, or node js web app fastfix bugs in your react, next js, or node js web app fastfix bugs in your react, next js, or node js web app fast

About this gig

Is your app broken and costing you customers? I'll fix it fast.


Facing bugs, crashes, or broken features? I am a Full Stack Developer specializing in deep-level debugging. My goal isn't just a fast patchits identifying the root cause and delivering a stable, long term solution for your application.


I bridge the gap between broken code and production stability, ensuring your platform is secure, optimized, and user ready.


What I Resolve & Fix:

  • Frontend: UI glitches, React hooks, Tailwind responsiveness, and JS bugs.
  • Backend: Node.js/Express/Next.js crashes, API failures, and server logic.
  • Database: MongoDB/SQL errors, slow queries, and data integrity.
  • Auth & Security: JWT/OAuth loops, form failures, and permission bugs.
  • Deployment: Resolving build errors on Vercel, Netlify, and AWS.


Why Choose Me?

  • Root Cause Fix: I target the source so the bug doesnt return.
  • Clean Code: Optimized, maintainable fixesno "spaghetti" code.
  • Security-First: Ensuring fixes don't create new vulnerabilities.
  • Tested Delivery: Every fix is rigorously tested before delivery.


Workflow: Analysis -> Root Cause Fix -> Testing -> Deployment


Message me now for a reliable fix to get your project back on track!

  • Platform

    • Custom

  • Website type

    • Business
    • Landing page
    • Portfolio
    • Saas

  • Programming language

    • JavaScript
    • TypeScript
    • HTML & CSS
    • Bootstrap
    • React
    • Other
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Get to know Senthilnathan R

Senthilnathan R

Full Stack Developer building AI powered web apps, SaaS MVPs with MERN Stack

  • FromIndia
  • Member sinceMar 2026
  • Avg. response time1 hour

  • Languages

    Tamil, English
Hi, I'm Senthilnathan, a Full Stack Developer specializing in the MERN stack (React, Node.js, MongoDB, Express), focused on AI-powered web apps and SaaS MVPs. I help founders turn ideas into working products: AI-integrated features (LLM tools using OpenAI's API), secure auth, REST APIs, and responsive React frontends. I also fix bugs and boost performance on existing codebases. My focus: clean, secure code and clear communication. Whether it's a quick fix or a full MVP, I aim to ship something that works, on time. Message me with your project happy to discuss scope.

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