I will debug and fix react nextjs nodejs typescript bugs and refactor code

S
simantabarua1
S
simantabarua1
Simanta
debug and fix react nextjs nodejs typescript bugs and refactor code
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debug and fix react nextjs nodejs typescript bugs and refactor code

About this gig

Stop wasting time on bugs automated tools cannot resolve. I provide professional full-stack debugging for React, Next.js, and Node.js applications. AI lacks full-repo context, cannot test live network endpoints, and fails at complex environment configs. I offer deep root-cause analysis and stable architectural fixes.

Core Debugging Expertise:

  • Frontend (React/Next.js): Hydration errors, App Router caching bugs, infinite re-renders, state sync (Redux/Zustand), and specific browser UI glitches.
  • Backend (Node.js): API integration failures, CORS blocks, broken webhooks (Stripe/Clerk), slow MongoDB queries, and JWT session drops.
  • Infrastructure: Vercel/Netlify deployment crashes, Vite build errors, dependency conflicts, and memory leaks.

The Debugging Process: I do not provide generated band-aids. I trace execution flows across multi-file architectures, monitor live network payloads, and analyze production logs to untangle complex race conditions and cross-boundary integration failures.

Next Steps: Please message me before ordering. Provide a brief overview of the bug, steps to reproduce, and your stack so we can select the correct package.

  • Platform

    • Custom

  • Website type

    • E-Commerce store
    • Business
    • Portfolio
    • Saas
    • Dropshipping

  • Programming language

    • JavaScript
    • TypeScript
    • HTML & CSS
    • Bootstrap
    • jQuery
    • React
    • Other
Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Simanta

Simanta
  • FromBangladesh
  • Member sinceJan 2025
  • Avg. response time1 hour

  • Languages

    English
Hello! 👋 I'm a passionate and dedicated MERN Stack Developer with extensive experience in building dynamic, responsive, and feature-rich web applications. Why choose me? 🔹 Experienced Developer – Years of hands-on experience in MERN stack development. 🔹 Clean Code – Well-documented and scalable solutions. 🔹 Timely Delivery – I respect deadlines and deliver on time. 🔹 24/7 Support – Quick responses and post-project assistance. 🔹 100% Satisfaction – I work until you’re happy with the result.

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