Upwork home
Sign up
Project Catalog
DesignDesign
Video & AudioVideo & Audio
Development & ITDevelopment & IT
MarketingMarketing
Writing & TranslationWriting & Translation
MoreMore

You will get any API integrated into your website with clean, and well-structured code

Haifa S.Status: Offline
Haifa S.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Haifa, priced and ready to go.
Haifa S.Status: Offline
Haifa S.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Haifa, priced and ready to go.

Project details

I will fix, debug, or integrate any API into your website or application with clean, reliable, and well-structured code. Whether your existing API is failing, returning errors, slowing down your app, or needs new endpoints and data mapping, I will quickly diagnose the issue and deliver a stable solution. You will get optimized API performance, secure request handling, and clear documentation.
Programming Languages
HTML & CSS, JavaScript
What's included
Service Tiers Starter
$50
Standard
$120
Advanced
$250
Delivery Time 1 day 3 days 5 days
Number of Revisions
123
Number of Pages
111
Design Customization
-
-
Content Upload
Responsive Design
Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$25 - $50
Additional Revision
+$15
Additional Page
+$30
Design Customization
+$20
Postman Collection + API Documentation
+$40
Authentication Setup (JWT, OAuth2, API Keys)
+$60
Database Mapping / Data Structuring
+$50
Haifa S.Status: Offline

About Haifa

Haifa S.Status: Offline
Senior Frontend Developer | React | JavaScript | Bug Fixing
Houston, United States - 7:38 am local time
Hi! I’m Haifa — a Senior Frontend & Mobile Developer with strong experience in UI development, API integrations, backend logic, and conversational AI. I’m also a Tech Lead who has supported teams in building customer-facing apps, call-routing flows, and large-scale integrations.

I focus on small, fast, high-quality tasks that need a reliable developer with excellent problem-solving skills.

What I Do Best

Fix React/JavaScript/HTML/CSS issues

Create or troubleshoot API endpoints

Build UI components & screens

Mobile app fixes (iOS/Android)

Technical system diagrams & flowcharts

Debugging + optimization

Why Clients Hire Me

✔ 8+ years experience in development
✔ Tech Lead background → clear communication
✔ Fast turnaround (1–24 hours)
✔ Clean, documented code
✔ I take only tasks I can finish perfectly

If you want a developer who delivers quick, clean, and reliable solutions — I’m ready to help.

Steps for completing your project

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

Delivery time starts when Haifa receives requirements from you.

Haifa works on your project following the steps below.

Revisions may occur after the delivery date.

Review Your API Issue

I will analyze the API documentation, request/response flow, and error logs to identify the root cause.

Implement Fixes or Integration

I will fix the API issue or integrate the API into your website/app, ensuring smooth communication between systems.

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