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

You will get API Integration | Google APIs | Stripe | OAuth2 | Webhooks

Mubashir K.Status: Offline
Mubashir K. Mubashir K.
5.0
Preview imagePreview image

Let a pro handle the details

Buy Other Web Programming services from Mubashir, priced and ready to go.
Mubashir K.Status: Offline
Mubashir K. Mubashir K.
5.0
Preview imagePreview image

Let a pro handle the details

Buy Other Web Programming services from Mubashir, priced and ready to go.

Project details

Connect your application to the services it needs with production-grade API integrations. With 12+ years of experience integrating Stripe, Google APIs, Firebase, AWS, OAuth2, and dozens more, I build integrations that handle errors gracefully, manage rate limits, process webhooks reliably, and keep running when third-party services have issues.

Every integration includes proper error handling, retry mechanisms with exponential backoff, request/response logging, and comprehensive documentation. No "it works on my machine" integrations.

I have delivered integrations for applications serving 10,000+ monthly active users, including payment processing (Stripe, PayPal), cloud storage (AWS S3, Google Drive), real-time communication (Pusher, Firebase FCM), analytics (Mixpanel, AppsFlyer), and authentication (OAuth2 with Facebook, Google, Apple). My work on WoofTrax maintained 8 concurrent API versions in production simultaneously.
Web Programming Project
API Development, API Integration
Programming Languages
PHP, JavaScript
Coding Expertise
Security
What's included
Service Tiers Starter
$150
Standard
$350
Advanced
$700
Delivery Time 2 days 5 days 10 days
Number of Revisions
222
Source Code
5.0
1 review
100% Complete
(1)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

TW

Tyrone W.
5.00
Jun 6, 2024
Need quick help with form validations in Laravel Outstanding experience! The seller quickly set up the validation rules for our Laravel forms, meeting all our specific requirements. The error messages were clear and user-friendly, just as requested. Communication was excellent, and the work was delivered on time. Highly recommend for anyone needing expert Laravel assistance!
Mubashir K.Status: Offline

About Mubashir

Mubashir K.Status: Offline
Senior Software Engineer | Expert in API Development, Cloud Solutions
5.0  (1 review)
Karachi, Pakistan - 11:17 am local time
I am an experienced Senior Software Engineer with 12+ years of expertise in backend development, API design, cloud computing, and mobile app solutions. I have consistently delivered scalable and high-performance systems, driving business growth and improving operational efficiencies.

Core strengths

REST APIs with OpenAPI/Swagger, versioning, pagination, and webhooks; auth via JWT/Sanctum/Passport, RBAC/policies.

Data & performance: MySQL (indexes/EXPLAIN), Redis caching/queues, background jobs, file/receipt pipelines, observability (Telescope/Sentry).

Cloud & Delivery: AWS (EB/EC2/SQS/SNS/S3), CI/CD (GitHub Actions/CodePipeline), blue-green/staged rollouts, runbooks & monitoring.

Moodle: plugin development, auth/enrollment integration, gradebook/reporting hooks, theming, performance tuning.

Front-end integration: React/Angular and modern JS around clean API contracts; Postman collections and DX-friendly docs.

Selected work

Career Counseling Platform — Laravel 9 backend; Pusher chat, Google Drive bi-directional sync, FCM/JPush; secure REST APIs (OpenAPI), queues, tests.

WoofTrax (charity walking app) — Symfony 5 API on AWS EB; SQS queues; SNS alerts; iOS/Android integration.

Type to Learn — Moodle backend + AngularJS front end; AWS EC2/CodeBuild/CodePipeline; Clever & ClassLink SSO.

I’m in Karachi (PKT, UTC+5) with daily US overlap. Let’s start small: I’ll deliver one production-ready endpoint (or a Moodle plugin hook) with tests and docs—then scale from there.

Steps for completing your project

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

Delivery time starts when Mubashir receives requirements from you.

Mubashir works on your project following the steps below.

Revisions may occur after the delivery date.

Analyze API & Plan Integration

Review API docs, understand auth flow, plan integration architecture

Auth & API Client Setup

Implement OAuth2/API key auth, build API client with error handling and retry

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