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Web Development

Fix Bugs in Your React, Next.js or Node.js App

  • From $49
  • 1-day delivery
  • Unlimited revisions
  • Secure checkout
Fix Bugs in Your React, Next.js or Node.js App screenshot 1

Send me the bug and I fix it: build errors, hydration errors, broken auth, failing API calls, slow pages or a deploy that will not start. You get the fix as a pull request with a short explanation of the cause.

What's included

  • Next.js App Router and Pages Router errors, hydration and build failures
  • React state, rendering and performance bugs
  • Node.js, Express and NestJS API errors, CORS and auth (JWT, NextAuth/Auth.js, Clerk, Supabase)
  • Prisma, PostgreSQL, MySQL and MongoDB query problems
  • Dependency upgrades: Next.js, React 19, Node.js LTS
  • Fix delivered as a clean pull request

Who this is for

  • One bug or a short list of bugs
  • Code written by another developer or by AI tools
  • Production issues you need gone today

What I need from you

  • Repository access or a zip
  • Steps to reproduce, or the error message

How it works

  1. Message me with what you need. The first consultation is free.
  2. I confirm the scope and a fixed price before any work starts.
  3. I do the work and keep you updated in the chat.
  4. You review it, and I hand over notes, access and anything I changed.

Free guides on this topic

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Questions

What if the bug is bigger than expected?

I tell you what I found and quote the rest before continuing. If I cannot fix it, you do not pay.

Do you sign an NDA?

Yes, on request.

What you'll get

  • Production-ready implementation tailored to your goals
  • Clean, maintainable code following modern best practices
  • Deployment to secure infrastructure with monitoring
  • Handover with documentation and full access

Tech stack & tooling

  • Frontend: Next.js, React, TypeScript, Tailwind CSS
  • Backend: Node.js, NestJS, Express, REST APIs
  • Database: PostgreSQL, MongoDB, Prisma
  • Deployment: Docker, AWS, CI/CD

How we'll work together

We start with a short requirements discussion, agree on scope and milestones, then move through implementation, review and handover. You get clear visibility into progress and a stable deployment at the end.

Fixed price

$49

Order now

Process

From idea to production

A transparent, predictable process focused on shipping real value, not surprises.

  1. 1

    Discovery call

    Free consultation

    We talk through your goals, users, timeline and budget, and I flag risks early.

  2. 2

    Scope & quote

    Written proposal

    You get a written scope, milestones and a fixed price. No work starts until you agree.

  3. 3

    Build & iterate

    Regular check-ins

    Small increments with regular check-ins, so you can see progress and steer early.

  4. 4

    Launch & support

    Handover + docs

    Production deployment with monitoring, documentation and optional ongoing support.

FAQ

Questions, answered

Everything you need to know before we start.

Still have a question?

Ask directly, I reply within 24 hours.

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What kind of projects do you take on?

SaaS products, business web apps, dashboards and APIs, plus DevOps and Linux work: deployments, CI/CD, server setup and maintenance. I take on new builds as well as existing codebases.

How much does a project cost?

It depends on scope. Fixed-scope packages with starting prices are listed on the Services page. For custom work I send a fixed quote after a free discovery call, so you know the price before any work starts.

How long does a typical project take?

Small fixes and deployments usually take days; a full web app or MVP takes weeks. Every proposal includes a timeline with milestones, so you know what ships when.

How do payments work?

We agree on scope and price first, and no advance is needed to start the conversation. Fixed-scope services can be paid securely online by card. Larger projects are split into milestones agreed up front.

Can you work on my existing codebase or servers?

Yes. I regularly fix bugs, improve performance, add features and migrate infrastructure on existing projects. We usually start with a short review so the estimate is based on the real code.

Do you work with clients outside Bangladesh?

Yes. I work remotely with clients worldwide, schedule calls around your time zone and reply to messages within 24 hours.

What happens after launch?

You get a handover with documentation and full access to your code, servers and accounts. Ongoing maintenance and support are available if you want someone to keep things running.

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