I will fix nodejs nextjs react bugs and api errors

A
adib23704
A
adib23704
Zahin A. Adib
fix nodejs nextjs react bugs and api errors
Full Screen
fix nodejs nextjs react bugs and api errors
Full Screen
Full Screen
fix nodejs nextjs react bugs and api errorsfix nodejs nextjs react bugs and api errorsfix nodejs nextjs react bugs and api errors

About this gig

Need an expert developer to fix nodejs, nextjs, react bugs or broken API errors fast?


I am a Full-Stack Software Engineer with 4+ years of production experience debugging complex applications and optimizing database performance. I systematically trace, isolate, and eliminate bugs without breaking existing code.


What I Fix:

  • Backend Errors: Node.js, Express, NestJS crashes, unhandled rejections, and broken API routes.
  • Frontend Issues: Next.js App Router hydration errors, React state/hook re-render loops, and broken UI components.
  • Database Performance: Slow PostgreSQL or MySQL queries, N+1 cascades, and missing indexes (cut query latency by ~40%).
  • Auth & JWT Failures: Broken session cookies, OAuth redirect loops, and role-based permission bugs.
  • Deployment Errors: Docker build failures, Vercel/AWS deployment issues, and environment variable mismatches.


How It Works:

  1. Message me with the error details.
  2. I diagnose the root cause.
  3. A clean fix and verification before delivery.


Message me before ordering!

  • Programming language

    • TypeScript

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Databases

  • Frontend framework

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

  • Backend framework

    • Express.js
    • Fastify
    • NestJS
    • Next.js
    • Node.js

Get to know Zahin A. Adib

Zahin A. Adib

Full Stack and Backend Engineer in Nodejs, Discord Bots, AWS, AI

5.0(5)
  • FromBangladesh
  • Member sinceAug 2019
  • Avg. response time2 hours
  • Last delivery2 years

  • Languages

    English, Bengali
Full-Stack & Backend Engineer with 4+ years of experience shipping production web apps, custom APIs, Discord bots, and AWS cloud infrastructure. Delivered 20+ client projects globally. Core Expertise: - Backend: Node.js, TypeScript, Express, Fastify, REST & WebSockets - Discord Bots: Custom bots, webhooks, database integration & AI bots - Databases: PostgreSQL, MySQL, MongoDB, Redis, Prisma (cut latency by 40%) - Frontend: Next.js (App Router), React, Tailwind CSS - Cloud & DevOps: AWS (EC2, S3), Docker, GitHub Actions CI/CD Committed to clean code and reliable delivery. Let's talk!

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