I will debug and fix critical next js, react, and node js production issues

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Faridul Islam

Level 2

debug and fix critical next js, react, and node js production issues
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debug and fix critical next js, react, and node js production issues
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debug and fix critical next js, react, and node js production issuesdebug and fix critical next js, react, and node js production issuesdebug and fix critical next js, react, and node js production issuesdebug and fix critical next js, react, and node js production issuesdebug and fix critical next js, react, and node js production issues

About this gig

Your Next.js build is failing in production. Your React app is leaking memory. Your Node API returns 500s under load and your deadline was yesterday.


I fix that. Properly. Not a patch the root cause.


I'm a senior full-stack engineer who debugs Next.js, React, and Node.js issues for SaaS teams, agencies, and founders shipping to real users. Hydration errors, broken auth/middleware, slow APIs, memory leaks, Vercel/AWS deployment failures, WebSocket drops these are the bugs I handle every week.


What you get:

  • Root-cause diagnosis (not a band-aid)
  • Clean, production-grade fix
  • Written explanation of what broke and why
  • Before/after metrics where it matters


Stack: Next.js 14/15/16, React 18+, TypeScript, Node.js/Express, MongoDB, PostgreSQL, REST + WebSockets, Vercel/AWS/VPS.


Who this is for: SaaS founders, startup CTOs, agencies juggling client work, and developers stuck on a bug that's eaten three days.


Message me with your error log, stack trace, or repo before ordering I'll confirm scope, timeline, and the right package within the hour.


Let's get your app shipping again.

  • Programming language

    • TypeScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases
    • Testing procedures

  • Frontend framework

    • Bootstrap
    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Express.js
    • FastAPI
    • NestJS
    • Next.js
    • Node.js

Get to know Faridul Islam

Faridul Islam

Senior Full Stack Engineer, SaaS and Scalable Web and Mobile Apps

4.8(15)

Level 2

  • FromBangladesh
  • Member sinceAug 2022
  • Avg. response time1 hour
  • Last delivery1 day

  • Languages

    Bengali, English, Hindi
I’m Faridul Islam, a Full Stack Architect building enterprise SaaS and AI-driven platforms for serious founders. I design scalable, secure, production-grade systems using Next.js, React, React Native, Node.js, and modern cloud infrastructure. My work focuses on clean architecture, performance, and long-term maintainability. I partner with ambitious startups and scaling businesses that require robust, investor-ready products — not freelance-level solutions.

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