You will get React & Node.js Bug Fixing | MERN Stack Error Fix, Fast 24-Hour Turnaround
Project details
ā IMPORTANT: Message me in Upwork chat before ordering so I can confirm scope and give you an exact plan.
š REACT & NODE.JS BUG FIXING ā FAST, CLEAN, EXPLAINED
Your app is broken, a component won't render, an API call fails, or the build won't deploy. Every hour it stays broken costs you. I fix MERN stack bugs fast ā usually within 24 hours ā using a modern AI-accelerated workflow, with every fix reviewed, tested and explained in plain English.
š§ WHAT I FIX
ā React ā rendering, state/hooks, routing, re-renders
ā Node.js & Express ā API errors, 500s, CORS, JWT/auth
ā MongoDB ā queries, schemas, connections
ā Build & deploy failures ā Vercel, Render, npm conflicts
ā Layout, responsive & performance issues
š INCLUDED FREE
ā Unlimited revisions (within agreed scope)
ā Full source code
ā Plain-English explanation of what went wrong
ā 14-DAY BUG WARRANTY ā if my fix breaks within 14 days, I repair it free
š© Message me with what's broken and the error message. I reply within the hour during my working day.
Keywords: MERN bug fix, React bug fixing, Node.js error fix, JavaScript debugging, Express API fix, MongoDB error, web app troubleshooting
š REACT & NODE.JS BUG FIXING ā FAST, CLEAN, EXPLAINED
Your app is broken, a component won't render, an API call fails, or the build won't deploy. Every hour it stays broken costs you. I fix MERN stack bugs fast ā usually within 24 hours ā using a modern AI-accelerated workflow, with every fix reviewed, tested and explained in plain English.
š§ WHAT I FIX
ā React ā rendering, state/hooks, routing, re-renders
ā Node.js & Express ā API errors, 500s, CORS, JWT/auth
ā MongoDB ā queries, schemas, connections
ā Build & deploy failures ā Vercel, Render, npm conflicts
ā Layout, responsive & performance issues
š INCLUDED FREE
ā Unlimited revisions (within agreed scope)
ā Full source code
ā Plain-English explanation of what went wrong
ā 14-DAY BUG WARRANTY ā if my fix breaks within 14 days, I repair it free
š© Message me with what's broken and the error message. I reply within the hour during my working day.
Keywords: MERN bug fix, React bug fixing, Node.js error fix, JavaScript debugging, Express API fix, MongoDB error, web app troubleshooting
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$59
|
Standard
$129
|
Advanced
$249
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 4 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$39
Additional Bug Fix
(+ 1 Day)
+$45
30-Min Screen-Share Walkthrough
+$29Frequently asked questions
About Mohd
Full-Stack Developer | MERN, Python, Java | Fast, Reliable Delivery
Delhi, IndiaĀ - 7:57 am local time
I'm a full-stack web developer working across the MERN stack (MongoDB, Express.js, React, Node.js), Python, and Java. I use a modern AI-accelerated workflow you get senior-level speed, and every line of code is personally reviewed and tested by me.
ā Available for: Full-stack development āŖ New web apps āŖ Bug fixes & features āŖ REST APIs & integrations āŖ Automation & scraping āŖ Admin dashboards
š» FULL-STACK WEB DEVELOPMENT
ā Web applications with React, Next.js + Node.js/Express + MongoDB (MERN stack)
ā Responsive, mobile-friendly UI ā Tailwind CSS, Material UI
ā Admin panels & dashboards
ā Authentication & authorization ā JWT, role-based access
ā Bug fixes & new features in your existing app ā 24ā72 hour turnaround
āļø BACK END, APIs & DATABASES
ā REST API design & development ā Node.js/Express, Python
ā API integrations ā Stripe & Razorpay payments, email services, third-party APIs, OpenAI/Claude APIs
ā Java applications & services
ā Databases ā MongoDB, MySQL, PostgreSQL
ā Real-time features ā WebSocket
š PYTHON & AUTOMATION
ā Automation scripts & scheduled jobs
ā Web scraping & data extraction
ā Python back-end services & APIs
āļø TOOLS & DEPLOYMENT
ā Git & GitHub, clean project structure
ā Deployments on AWS, Vercel, Render
ā Easy collaboration ā Slack, Discord, Teams, Jira, Notion (your choice)
š HOW I WORK
1. I confirm your goal and scope in one short conversation
2. Clear milestones with realistic deadlines ā no surprises
3. Progress updates every 1ā2 days, in plain English
4. Demo-first delivery: a short video with every milestone, so you see it working before payment
ā±ļø WHY ME
ā¢ Fast delivery ā AI-accelerated workflow, human-reviewed and tested code
ā¢ Fast replies ā usually within 1 hour during my working day, with 4+ hours of daily overlap with US & EU business hours
ā¢ Honest communication ā if anything changes, you hear it from me first
š© READY TO START?
Send me 1ā2 lines about your project ā a new web app, a feature, a bug fix, or a process to automate ā or invite me to your job post. I'll reply with a concrete plan and a fixed quote within a few hours.
Keywords: Full Stack Developer, MERN Stack Developer, React Developer, Next.js Developer, Node.js Developer, Express.js, MongoDB, JavaScript Developer, TypeScript, Python Developer, Java Developer, REST API Developer, API Integration, Web Application Developer, Automation, Web Scraping, Bug Fixing
Steps for completing your project
After purchasing the project, send requirements so Mohd can start the project.
Delivery time starts when Mohd receives requirements from you.
Mohd works on your project following the steps below.
Revisions may occur after the delivery date.
Reproduce the bug
I set up your project on my side and reproduce the exact error you are seeing, so I am fixing the real problem instead of guessing.
Find the root cause
I trace the error to its actual source and confirm the fix approach with you before I change anything in your code.