You will get Bugs fixed and features added to your React full-stack web app
Project details
I don’t just patch the visible symptom and move on. I first reproduce the issue, trace the root cause, fix it cleanly, and test the affected flow so the problem is actually resolved.
I can help with React and JavaScript bugs, broken layouts, responsive issues, API integration problems, form validation, state/logic errors, browser inconsistencies, and smaller full-stack issues.
My approach is simple: understand what is failing, make the smallest reliable change, avoid disturbing unrelated functionality, and verify the result before delivery.
You’ll receive working code plus a clear explanation of what caused the issue and what was changed.
For larger or unclear problems, message me before ordering so we can choose the right package and scope.
I can help with React and JavaScript bugs, broken layouts, responsive issues, API integration problems, form validation, state/logic errors, browser inconsistencies, and smaller full-stack issues.
My approach is simple: understand what is failing, make the smallest reliable change, avoid disturbing unrelated functionality, and verify the result before delivery.
You’ll receive working code plus a clear explanation of what caused the issue and what was changed.
For larger or unclear problems, message me before ordering so we can choose the right package and scope.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, W3C Markup Validation ServiceWhat's included
| Service Tiers |
Starter
$29
|
Standard
$79
|
Advanced
$179
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 6 days |
Number of Revisions | 1 | 2 | 2 |
Bug Investigation | |||
Fix Documentation | - | ||
Detailed Code Comments | - |
Optional add-ons
You can add these on the next page.
Additional Related Bug Fix
(+ 1 Day)
+$20Frequently asked questions
About Muhammad Mansoor
Full-Stack Web Developer | React, APIs, Bug Fixes & QA
Islamabad, Pakistan - 1:01 am local time
If you already have a product that isn't working the way it should, or an idea that needs to become a reliable web application, I can take it from problem to working solution.
A feature being technically finished isn’t enough for me. I look at the whole path: what the user sees, what happens behind the interface, where the API or database can fail, what edge cases were missed, and how we can verify the fix instead of just hoping it works.
You can bring me:
a bug that keeps coming back
an unfinished React or full-stack application
a new feature that needs to go from idea to working implementation
an API, database, authentication, or third-party integration
a web app that works but needs serious QA before users find the problems
a small desktop application or internal business tool
a lightweight mobile application or prototype
a repetitive workflow that should probably be automated instead
I’ve worked across very different products, ordering platforms, POS and inventory systems, browser applications, business websites, desktop software, mobile apps, AI/ML projects, games, and automated testing systems.
That variety taught me something important:
The right solution depends on the product, not on my favorite technology.
For web development, I work with React, JavaScript, Next.js, Node.js/Express, ASP.NET Core, Spring Boot, FastAPI, MongoDB, MySQL, Tailwind CSS, and Bootstrap.
For desktop and application development, I’ve worked with Java, JavaFX, Python, Tkinter, C#, and Flutter, depending on what the product requires.
For QA, I use Playwright, Selenium, Postman, PyTest, and JUnit for UI, API, regression, functional, and end-to-end testing.
I also work with n8n, Make, Zapier, APIs, and webhooks to automate repetitive workflows and connect existing tools.
I care about the part after the code is written too:
Does it make sense? Does it survive real use? Can someone else maintain it?
Tell me what you’re trying to build, fix, test, or automate. I’ll understand the problem first, then figure out the cleanest way to make it work.
Steps for completing your project
After purchasing the project, send requirements so Muhammad Mansoor can start the project.
Delivery time starts when Muhammad Mansoor receives requirements from you.
Muhammad Mansoor works on your project following the steps below.
Revisions may occur after the delivery date.
Investigate the issue
I’ll reproduce the problem, inspect the relevant code and flow, and identify the root cause before making changes.
Implement the right fix
I’ll apply a clean, focused fix while avoiding unnecessary changes to unrelated parts of your application.