You will get I will fix bugs, errors, and performance issues in React / Next.js

Name: You will get I will fix bugs, errors, and performance issues in React / Next.js
Availability: InStock

Muhammad A. Muhammad A.

5.0

Rising Talent

Muhammad A. Muhammad A.

5.0

Rising Talent

Project details

Hi, I’m a professional Full Stack Developer specializing in React.js and Next.js.

Are you facing issues like app crashes, build errors, blank screens, API failures, slow performance, or deployment problems? These issues can delay delivery, hurt user experience, and impact your business.

I can help quickly diagnose, debug, and fix your React / Next.js application to make it stable, optimized, and production-ready.

𝗪𝗵𝗮𝘁 𝗜 𝗼𝗳𝗳𝗲𝗿:
✅ Bug fixing & error resolution
✅ React / Next.js debugging
✅ Performance optimization
✅ API & backend integration fixes
✅ UI / UX bug fixing
✅ Deployment & build issue resolution
✅ Clean, scalable, maintainable code

Whether it’s a small bug or a complex frontend issue, I deliver fast, reliable solutions with clear communication and professional code quality.

Let’s get your application running smoothly again.

Programming Languages

HTML & CSS, JavaScript, TypeScript

Coding Expertise

Cross Browser & Device Compatibility, Performance Optimization, Security

What's included

Service Tiers	Starter $40	Standard $110	Advanced $350
Delivery Time	1 day	2 days	5 days
Number of Revisions	1	2	3
Bug Investigation
Fix Documentation	-
Detailed Code Comments

Optional add-ons You can add these on the next page.

Fast Delivery

+$15 - $25

Additional Revision

+$10

Fix Documentation (+ 2 Days)

+$20

Frequently asked questions

5.0

3 reviews

100% Complete

(3)

1% Complete

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Full Stack Developer Needed — Deploy & Connect Backend for Compliance App (React App Provided) Performed excellent work and would gladly use again.

Ongoing EdTech Work

EdTech Platform - Landing, App and Blog Working with this developer was one of the smoothest collaboration experiences I've had on Upwork. Clear communication from day one, full ownership of the work, and always available when a bug needed fixing. I never had to chase him; no delays, no hand-holding needed.

What I appreciated most was that he didn't just write code, but he thought about the product. Proactive, reliable, and genuinely invested in getting things right. Wishing him all the best! Any team lucky enough to work with him on a React, Next.js, or Laravel project is in good hands :)

About Muhammad

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Next.js, React, Node.js, Express | SaaS & MVP Full Stack Developer

100% Job Success

5.0 (3 reviews)

Pindi Gheb, Pakistan - 3:06 am local time

I take SaaS products from empty repo to paying users on Next.js, React, Node.js, and Express. You hire one developer who owns the whole build, front end to deployment, and you never chase me for status. I send updates before you ask.

Over 5+ years I've shipped 60+ production features across live full stack systems in EdTech, retail e-commerce, B2B trade, and proptech.

▸ Retail: a multi-branch POS and store-management SaaS for the Pakistani market, with real-time barcode scanning, inter-branch stock transfers, and JazzCash and Easypaisa payment rails.

▸ B2B trade: a marketplace on Next.js, TypeScript, Node.js/Express, PostgreSQL, and Stripe subscription billing, connecting buyers, sellers, investors, and logistics providers across Africa.

★ MVP DEVELOPMENT

Most founders come to me with a spec and a deadline. I ship a first version that can take money on day one: auth, payments, admin panel, and the one workflow your users actually pay for. A typical MVP runs 4 to 6 weeks on Next.js, React, Node.js, and Express, and it ships on the same stack you scale on, so version two builds on the code instead of replacing it.

★ UPWORK TRACK RECORD

✔ 100% Job Success Score
✔ Rising Talent
✔ 5.0 rating
✔ 424+ hours delivered

❝ Working with this developer was one of the smoothest collaboration experiences I've had on Upwork. Clear communication from day one, full ownership of the work, and always available when a bug needed fixing, no delays, no hand-holding needed. He didn't just write code, he thought about the product. ❞
▪ Rohit D., EdTech founder

★ WHAT I BUILD

▸ E-COMMERCE SaaS · Next.js, React, Node.js, Express, Stripe
Multi-vendor and single-store platforms with cart, checkout, inventory, and order management.

▸ POS SaaS & CARD POS SaaS · React, Node.js, Express, PostgreSQL, WebSockets
Real-time terminals, barcode and card scanning, multi-branch inventory, role-based staff access.

▸ TRADING CARD POS · Next.js, TypeScript, MySQL
Card intake, grading and condition tracking, pricing sync with market data, buy/sell/trade and consignment workflows.

▸ B2B MARKETPLACE SaaS · Next.js, TypeScript, Node.js/Express, PostgreSQL, Stripe
Buyer, seller, and investor platforms with listings, subscriptions, and logistics workflows.

▸ PROPERTY CRM · Laravel, MySQL, REST APIs
Listings, lead and deal pipeline tracking, tenant and owner management, follow-up automation.

▸ EDTECH SaaS · Next.js, React, Laravel, MySQL
Course management, mentor and student dashboards, live sessions, progress tracking.

▸ AI CHATBOTS & AUTOMATION · n8n, OpenAI, Claude, WhatsApp API
Support, lead qualification, and order-status bots, plus a WhatsApp assistant on Claude and Qdrant RAG that answers customer queries daily. 50+ production n8n workflows for CRM sync, lead management, invoicing, and reporting.

★ INDUSTRIES I BUILD FOR

▸ EdTech & e-learning · course platforms, student and mentor dashboards, live sessions
▸ Retail & e-commerce · storefronts, multi-branch POS, inventory and order management
▸ B2B trade & marketplaces · buyer and seller listings, subscriptions, logistics workflows
▸ Real estate & proptech · listing portals, lead and deal pipelines, tenant management
▸ Healthcare & telemedicine · appointment booking, patient portals, secure record access
▸ Fintech & lending · application flows, KYC steps, payment and payout dashboards
▸ Recruitment & HR tech · job boards, applicant tracking, onboarding workflows
▸ Field service & trades · job scheduling, technician dispatch, invoicing automation
▸ Automotive & dealerships · inventory listings, lead capture, finance enquiry flows
▸ Event & ticketing · booking, seat selection, checkout and payment handling
▸ Agritech & supply chain · producer marketplaces, order tracking, distribution dashboards

★ PAYMENTS & BILLING

Stripe · Razorpay · PayPal · PayU · JazzCash · Easypaisa
Subscription billing, one-time checkout, split payments, and local rails for South Asian, African, and global markets.

★ TECH STACK

Frontend: Next.js · React · Astro · TypeScript · JavaScript · Tailwind CSS
Backend: Node.js · Express.js · Laravel · PHP · REST APIs
Database: PostgreSQL · MySQL · Supabase
Payments: Stripe · Razorpay · PayPal · PayU
Automation: n8n · OpenAI · Claude · WhatsApp API
DevOps: Docker · GitHub Actions · Vercel · VPS

Building a SaaS product on Next.js, React, or Node.js? Message me what you're building and I'll send back a realistic scope and timeline.

Steps for completing your project

After purchasing the project, send requirements so Muhammad can start the project.

Delivery time starts when Muhammad receives requirements from you.

Muhammad works on your project following the steps below.

Revisions may occur after the delivery date.

Step 1

Client submits project files and error details

step 2

I analyze and identify the root cause

Review the work, release payment, and leave feedback to Muhammad.

Select service tier

Starter$40

Standard$110

Advanced$350

Basic — Quick Bug Fix

Fix one bug, error, or issue in your React.js / Next.js application.

Delivery Time 1 day
Number of Revisions 1
- Bug Investigation
- Detailed Code Comments

1 day delivery — Aug 25, 2026

Revisions may occur after this date.

Upwork Payment Protection

Fund the project upfront. Muhammad gets paid once you are satisfied with the work.

You will get I will fix bugs, errors, and performance issues in React / Next.js

Let a pro handle the details

Let a pro handle the details

Project details

Programming Languages

Coding Expertise

What's included

Frequently asked questions

MD

GJ

RD

About Muhammad

Next.js, React, Node.js, Express | SaaS & MVP Full Stack Developer

Steps for completing your project

After purchasing the project, send requirements so Muhammad can start the project.

Muhammad works on your project following the steps below.

Step 1

step 2

Review the work, release payment, and leave feedback to Muhammad.

Select service tier

Basic — Quick Bug Fix

You will get I will fix bugs, errors, and performance issues in React / Next.js

Let a pro handle the details

Let a pro handle the details

Project details

Programming Languages

Coding Expertise

What's included

Frequently asked questions

MD

GJ

RD

About Muhammad

Next.js, React, Node.js, Express | SaaS & MVP Full Stack Developer

Steps for completing your project

After purchasing the project, send requirements so Muhammad can start the project.

Muhammad works on your project following the steps below.

Step 1

step 2

Review the work, release payment, and leave feedback to Muhammad.

Select service tier

Basic — Quick Bug Fix

Optional add-ons (2)