I will fix bugs and integrate payment, logistics and rest apis in your web app

S
samadabdula
S
samadabdula
Abdul Samad
fix bugs and integrate payment, logistics and rest apis in your web app
Full Screen
fix bugs and integrate payment, logistics and rest apis in your web app

About this gig

Struggling with broken APIs, payment failures, or logistics integration nightmares? I've got you covered.


I am a full-stack developer with 3+ years of experience integrating and debugging complex APIs for e-commerce, logistics, fintech, and SaaS platforms.


What I can fix & integrate:


Payment Gateways

Stripe, PayPal, Razorpay, Braintree, Square, 2Checkout


Logistics & Shipping APIs

ShipStation, EasyPost, FedEx, DHL, UPS, AfterShip, Shippo


REST / GraphQL APIs

OAuth2, JWT auth, webhooks, rate limiting, pagination


E-commerce Integrations

Shopify, WooCommerce, Magento, BigCommerce APIs


Third-Party Services

Twilio, SendGrid, Firebase, Google Maps, Slack, Zapier


My Process:

1. Review your code & understand the issue

2. Identify root cause (not just symptoms)

3. Fix + test thoroughly

4. Deliver clean, documented code


Why choose me?

Clean, maintainable code

Clear communication throughout

I don't just fix I explain what went wrong

Fast turnaround with quality guarantee


Message me before ordering to confirm I can solve your specific issue!

  • Programming language

    • PHP

  • Expertise

    • Debugging
    • Performance
    • Security
    • Design
    • Databases

  • Frontend framework

    • Flutter
    • jQuery
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Laravel
    • CakePHP
    • CodeIgniter
    • Express.js
    • FastAPI

Get to know Abdul Samad

Abdul Samad

Full Stack Web and Mobile App Developer

  • FromPakistan
  • Member sinceJun 2026
  • Avg. response time1 hour

  • Languages

    English
Welcome! I'm a passionate and results-driven Full-Stack & Flutter Developer with hands-on experience building powerful web applications, cross-platform mobile apps, e-commerce platforms, and logistics systems. Whether you need a robust backend API, a sleek mobile app, or a complete business solution — I deliver clean, scalable, and high-performance code tailored to your needs.

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