I will troubleshoot optimize and boost performance for your web app like a pro

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M Hussain

Vetted Pro

Level 2

5.0
5.0
Vetted by Fiverr Pro

M Hussain was selected by the Fiverr Pro team for their expertise.

About this gig

Is your website crashing, slow, or behaving unpredictably?

Im a Full-Stack Pro Developer (React, Next.js, Node, TypeScript) specializing in critical bug fixing, performance optimization, memory leak cleanup, API failures, and UI/UX glitchesfast and clean.

I dont just patch issues

I diagnose the root cause, optimize the codebase, and deliver a stable, scalable solution.

What I fix

UI bugs, broken layouts, hydration issues, API/CORS errors, server crashes (4xx/5xx), slow loading, high TTFB, memory leaks, infinite loops, stale renders, state issues (Redux/Zustand/React Query), auth problems, DB performance issues (Mongo/Postgres/Prisma).

What I optimize

Performance (memoization, caching, bundling), Web Vitals (LCP/CLS/TTI), server speed (logging, rate-limits), React/Next.js (code splitting, images), database queries, deployments (Vercel/Netlify/Render), and security (XSS, validation).

Why choose me

Pro debugging workflow, documented fixes, root-cause report, performance insights, video walkthroughs, and fast delivery.

Tech

  • React Next.js Node TypeScript MongoDB PostgreSQL Prisma Tailwind Supabase Firebase Vercel
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 M Hussain

M Hussain

Vetted Pro

Dedicated Software engineer at your service

4.9(39)

Level 2

M Hussain is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.

Vetted for

  • Website Development

  • Website Maintenance

  • FromPakistan
  • Member sinceAug 2020
  • Avg. response time1 hour
  • Last delivery3 days
  • Languages

    English, Spanish, French, Russian
Hi, I’m M. Hussain — a software engineer specializing in MERN stack development. I love building web applications that are fast, intuitive, and built to scale. Using Next.js, Prisma, PostgreSQL, and GraphQL, I turn ideas into clean, maintainable products—sendmea is one of my featured builds. Take a look at my portfolio, and if you’re working on something exciting, let’s talk.

My Portfolio

Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • L
    image-docs

    littlebusiness_

    US

    United States

    5

    Working with MHussain was one of the best freelancer experiences I've had. I came to him with a complex technical project, integrating Clerk authentication and Supabase persistent memory into an existing React/Next.js app, deployed to a custom domain via Vercel, and he delivered faster than I thought...

    $800-$1,000

    Price

    4 days

    Duration

    Helpful?
    Yes
    No
Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
Sort By
Most relevant
  • L
    image-docs

    littlebusiness_

    US

    United States

    5

    Working with MHussain was one of the best freelancer experiences I've had. I came to him with a complex technical project, integrating Clerk authentication and Supabase persistent memory into an existing React/Next.js app, deployed to a custom domain via Vercel, and he delivered faster than I thought...

    $800-$1,000

    Price

    4 days

    Duration

    Helpful?
    Yes
    No