You will get React Next.js bug fixes and performance improvements
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Project details
Having a bug in your Next.js or React application? I will investigate the issue, identify the root cause, implement a clean fix, and verify that it works as expected. I specialize in production applications using Next.js, React, TypeScript, JavaScript, and Node.js. I can help with routing, SSR/CSR, hydration, rendering, API, data-fetching, TypeScript, UI, integration, and application-level performance issues. My process is simple: reproduce → diagnose → fix → test → deliver. You get focused, maintainable changes without unnecessary rewrites. This project covers a specific bug or defined issue within the selected package. Multiple unrelated bugs, major refactoring, or new feature development may require additional scope.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$300
|
Standard
$600
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 3 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 3 | 5 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$39
Additional Page
(+ 1 Day)
+$50Frequently asked questions
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HD
Huey D.
May 1, 2026
Frontend Developer Needed – Quick Accessibility (ADA/WCAG) Fixes (React App)
Ali is Very professional, quality oriented, detailed, and will be able to work at most times of the day!
GY
Ghulam Y.
Apr 22, 2026
Build a Full-Stack Tools SaaS (PDF + Docs + Images) — Next.js / MERN
Good experience overall. Project was a bit heavy with all the pdf, doc, image tools + seo requirements, but he handled it well. He got what i needed and didn’t just rush through it. Also paid attention to performance and structure which was important for me. Communication was easy, no issues there.
a few small things came up during the work (pretty normal), and he fixed them without making it a problem.
In the end, everything came out as expected. would work with him again.
a few small things came up during the work (pretty normal), and he fixed them without making it a problem.
In the end, everything came out as expected. would work with him again.
RE
Remy E.
Dec 20, 2025
Next.js / React Fullstack Developer | AI Chatbot & User Authentication Integration
Did a great job and delivered exactly what was needed for my Node.js and NextJS project. Communication was smooth, and the project was completed on time. Would gladly work with them again.
BJ
Baynton J.
Dec 18, 2025
AI RAG Feature Development with Next.js
Really happy with the work. They set up the RAG feature in our Next.js project and took care of everything we discussed. Communication was smooth, and the delivery met our expectations. Overall, a solid and reliable experience.
RB
Robina B.
Nov 25, 2025
Nextjs and MERN Full Stack Production Upgrade with Performance Improvements and New Features
I hired them for a Next.js project using the MERN stack. The frontend became much faster and smoother, and the backend APIs were reorganized for better stability. A few minor bugs came up during testing, but they fixed them quickly. Communication was easy and professional, and the documentation was very helpful. The project was delivered on time, and I’m happy with their work. I’d definitely hire them again.
About Ali
Senior SaaS Engineer | Build, Fix & Scale Next.js/Node | Payments, AI
100%
Job Success
Bahawalpur, Pakistan - 8:57 pm local time
I'm a Senior Software Engineer (Lead) with 6 years building, rescuing, and scaling production SaaS. I currently lead a 5-person team across a 9-product SaaS portfolio, owning architecture, payments, performance, and production reliability — so I bring a lead engineer's judgment to your codebase, not just a pair of hands.
I don't just fix the visible bug — I find the structural reason it keeps happening and fix the process so it stops. Recent client work: rebuilt and stabilized a Next.js/MERN production app (faster frontend, reorganized APIs, smoother releases), and shipped an AI RAG feature and authentication into a live product — both delivered on time, 5 stars.
Where I create the most value:
• SaaS rescue & performance — slow, buggy, or fragile Next.js/Node apps made fast and reliable
• Feature delivery — shipping real SaaS features into live products without breaking them
• Payments — Stripe, 3DS, multi-currency, subscriptions (I've built European toll & e-commerce payment flows)
• AI features — OpenAI/RAG integrated into production, not demos
• Architecture — multi-tenant SaaS, auth (JWT/OAuth2/RBAC), APIs, AWS
I take ownership from investigation through production and communicate clearly the whole way — clients consistently mention my responsiveness and reliability.
Next step: send me your product URL or repo and a short description of the problem. I'll tell you honestly what's going on and how I'd approach it. If it's a fit, I'll scope it as a fixed-price project so you know exactly what you're getting.
Steps for completing your project
After purchasing the project, send requirements so Ali can start the project.
Delivery time starts when Ali receives requirements from you.
Ali works on your project following the steps below.
Revisions may occur after the delivery date.
Describe the bug or issue
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