You will get front end developer | Reactjs developer | React | Javascript | API
Top Rated
Project details
⭐ IMPORTANT: Every Client has unique requirements - let's talk in Upwork Chat before ordering.
All Development / Customization / Updates / Fixes will be done at $33.33/hr. Can give fixed price also after communication in Upwork messages. ⭐
With a deep understanding of React.js's capabilities, I can transform your vision into a fully functional and user-friendly web application. My expertise includes:
✅Custom React.js Design and Development: I'll create a unique and responsive React.js application tailored to your specific requirements, ensuring your UI stands out from the crowd.
✅Reusable UI Component Design and Development: I'll design and develop reusable React.js components, fostering code reusability and enhanced performance.
✅Seamless 3rd-party Integration and Management: I'll integrate necessary third-party libraries and APIs to extend your application's functionality and enhance user experience.
Contact me today for a free consultation and experience the power of React.js.
All Development / Customization / Updates / Fixes will be done at $33.33/hr. Can give fixed price also after communication in Upwork messages. ⭐
With a deep understanding of React.js's capabilities, I can transform your vision into a fully functional and user-friendly web application. My expertise includes:
✅Custom React.js Design and Development: I'll create a unique and responsive React.js application tailored to your specific requirements, ensuring your UI stands out from the crowd.
✅Reusable UI Component Design and Development: I'll design and develop reusable React.js components, fostering code reusability and enhanced performance.
✅Seamless 3rd-party Integration and Management: I'll integrate necessary third-party libraries and APIs to extend your application's functionality and enhance user experience.
Contact me today for a free consultation and experience the power of React.js.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$99
|
Standard
$399
|
Advanced
$899
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 5 days |
Number of Revisions | 1 | 2 | 4 |
Number of Pages | 1 | 2 | 6 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
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KO
Kelly O.
Aug 6, 2026
Buy Box Builder — Punch List Fixes and Production Cutover- M2 V2
KI
Kelly I.
Aug 3, 2026
SharperHaus Recommendations Page Rebuild (Phase 1)
Once again, great working with Haris.
KI
Kelly I.
Aug 2, 2026
Digital Ocean Repo Discovery
Haris is incredibly responsive and easy to work with. He's very professional and does great work. I've already signed on for another, bigger project with him. Highly recommend.
OC
Ocean C.
Apr 6, 2026
Code Fix for Incomplete Project
We had an incredible experience with Haris. He completed our two week projected project in three days with enhancements. We will definitely be using him again and anyone would be lucky to have him. He understood everything and asked for clarification when needed, no guess work. He was very thorough and an incredible communicator.
EP
Eddie P.
Jan 2, 2025
JavaScript Script development
Haris, was excellent from the start taking on a short notice project that helped me tremendously, he is very efficient and professional and even provided another long term solution for the future while resolving the current issue. I would recommend him for any technical issue as he is highly reliable
About Haris
Senior Next.js, React, Supabase | AI Integration
100%
Job Success
Karachi, Pakistan - 4:23 am local time
Six years on Upwork, 50+ contracts, 100% JSS.
I use AI tooling daily — it's genuinely fast at producing something that runs. What it doesn't produce is a system. It'll happily put an API key in the frontend, skip the empty state, ignore the error case, invent an auth check that runs client-side only, and duplicate the same logic across nine files. None of that shows up in the demo. All of it shows up in week one of real traffic.
So a lot of my work now is picking up prototypes and making them into products. Not rewriting from scratch — that's usually wasteful, and the prototype already proved the idea. The job is finding the handful of decisions that will break under load and fixing those, then building properly on top of what's worth keeping.
I do greenfield builds too. But if you've got something half-finished, inherited from another developer, or generated fast and now stuck, that's the situation I'm most useful in.
What I actually do first
I read the code and the real data before I quote. Not the docs — the actual API responses, the actual database, the actual repo. Documentation describes intent; the data tells you what's true, and the gap between them is where timelines vanish.
Then you get a straight assessment: what's fine, what's fragile, what's dangerous, and what any of it costs. Sometimes the answer is that less needs fixing than you feared. I'd rather tell you that in the first conversation than bill for it.
What I build
React, TypeScript, Next.js on the front. Node and Python behind it. Dashboards, client portals, marketplaces, booking systems, internal tools.
Heavy on integration — connecting a frontend to an API that already exists, third-party services, systems never designed to talk to each other. Auth and role-based access done server-side, where it can't be bypassed. AI features where they earn their place.
I'm also a data engineer, Microsoft Fabric certified (DP-600, DP-700), building pipelines and Power BI reporting on Azure and AWS. That's why my applications hold up under real data: most developers guess at what arrives downstream. I've been the one generating it.
How I work
Working URL early, stays working. Progress is something you check, not something I report.
Scope changes raised the week I spot them, not at handover.
Written for whoever maintains it after me, assuming it won't be me. Your repo, your server, docs covering build, deploy, and rollback.
Track record
"The best freelance developer I have EVER worked with." · "Built the MVP I was looking for in record time."
Send me the repo or a real API response, and I'll tell you what you're dealing with before either of us commits.
Steps for completing your project
After purchasing the project, send requirements so Haris can start the project.
Delivery time starts when Haris receives requirements from you.
Haris works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering
I’ll collaborate with you to gather all necessary details, including project goals, timelines, and budget. We’ll discuss the user interface, desired functionality, and other critical elements to ensure a clear understanding of the project’s scope.
Design and Mockup (Optional)
After finalizing the requirements, I will create a design and mockup to visualize the application's look and feel. We’ll work together to refine the design through iterations until we achieve the ideal user experience.