You will get React, Node.js, Express & MongoDB bugs fixed in your MERN app
Project details
Are you facing bugs, errors, or performance issues in your React or Node.js app?
I fix frontend, backend, API, database, and MERN stack issues with clean debugging and reliable solutions.
✔ React.js UI bugs
✔ Node.js backend issues
✔ API and authentication problems
✔ MongoDB query/debugging fixes
✔ Performance optimization
✔ Code cleanup and stabilization
Tech stack:
React • Node.js • Express • MongoDB • JWT • REST APIs
⚡ Fast communication
⚡ Clean debugging process
⚡ Reliable production-ready fixes
📩 Please message me before ordering complex issues.
I fix frontend, backend, API, database, and MERN stack issues with clean debugging and reliable solutions.
✔ React.js UI bugs
✔ Node.js backend issues
✔ API and authentication problems
✔ MongoDB query/debugging fixes
✔ Performance optimization
✔ Code cleanup and stabilization
Tech stack:
React • Node.js • Express • MongoDB • JWT • REST APIs
⚡ Fast communication
⚡ Clean debugging process
⚡ Reliable production-ready fixes
📩 Please message me before ordering complex issues.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$50
|
Standard
$90
|
Advanced
$150
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 5 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$20
Performance Audit
(+ 2 Days)
+$40
Extra Bug Fix
(+ 1 Day)
+$35Frequently asked questions
About Azizul Rabby
Full-Stack MERN Engineer | SaaS MVPs, APIs & Dashboards
Sylhet, Bangladesh - 11:05 am local time
Most web apps start simple — then become slow, hard to maintain, and difficult to scale as features, users, dashboards, payments, and roles are added.
I help founders, startups, and remote teams prevent that by building clean, maintainable MERN applications with secure APIs, authentication, dashboards, Stripe flows, and production-ready structure.
I’m Azizul Rabby, a Full-Stack MERN Engineer focused on React, Node.js, Express, MongoDB, REST APIs, auth/RBAC, Stripe integration, SaaS dashboards, and MVP development.
What I can help with:
• SaaS MVP development
• React dashboards and responsive UI
• Node.js / Express REST APIs
• MongoDB schema design and query improvements
• JWT/Firebase authentication, RBAC, and protected routes
• Stripe payment integration
• Admin dashboards and multi-role user systems
• Bug fixing, feature development, and performance cleanup
• Existing MERN app refactoring and codebase cleanup
Featured project:
DialogueDock — a full-stack MERN community platform I designed and built with authentication, 3-tier RBAC, protected routes, Stripe integration, admin/user roles, responsive UI, 20+ REST endpoints, and production deployment.
How I work:
I first understand the goal, current problem, expected behavior, and technical constraints. Then I break the work into clear steps, communicate progress, flag blockers early, and deliver clean, tested code with a simple handoff summary.
You can expect clear communication, practical technical decisions, and code that is structured for future changes — not just today’s delivery.
If you need a reliable MERN developer to build, fix, or improve your app without adding unnecessary complexity, send me a message with what you’re working on. I’ll reply with a clear, honest next step.
Steps for completing your project
After purchasing the project, send requirements so Azizul Rabby can start the project.
Delivery time starts when Azizul Rabby receives requirements from you.
Azizul Rabby works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Review
Analyze the issue, expected behavior, and project setup.
Debug & Investigation
Identify the root cause using structured debugging.