You will get any third-party REST API integrated with your backend
Project details
I integrate any third-party REST API with your backend. Payment provider, CRM, email service, analytics platform, partner API. You get a working API client with authentication, error handling, retries, and structured logging.
What you get:
• API client wired into your backend
• Authentication (API key, OAuth 2.0, JWT, or HMAC signing)
• Error handling, exponential backoff retries, structured logs
• A test endpoint to verify the integration
• Inline code comments and a short README
Stack: Python (FastAPI, Django), Node.js (Express, Nest), PHP (Laravel, Symfony).
Why this works:
• Senior backend engineer, 20+ years shipping production SaaS
• Real shipped integrations: Stripe billing, Shopify webhooks, custom partner APIs across multi-tenant products
• Clean abstraction layer so you can swap or extend providers later
• Async, clear communication. No ghosting, no surprises.
Need a one-off integration or multi-API orchestration with circuit breakers and audit logs? Pick Standard or Advanced. Have a specific API not in the standard list? Message me first to confirm scope.
What you get:
• API client wired into your backend
• Authentication (API key, OAuth 2.0, JWT, or HMAC signing)
• Error handling, exponential backoff retries, structured logs
• A test endpoint to verify the integration
• Inline code comments and a short README
Stack: Python (FastAPI, Django), Node.js (Express, Nest), PHP (Laravel, Symfony).
Why this works:
• Senior backend engineer, 20+ years shipping production SaaS
• Real shipped integrations: Stripe billing, Shopify webhooks, custom partner APIs across multi-tenant products
• Clean abstraction layer so you can swap or extend providers later
• Async, clear communication. No ghosting, no surprises.
Need a one-off integration or multi-API orchestration with circuit breakers and audit logs? Pick Standard or Advanced. Have a specific API not in the standard list? Message me first to confirm scope.
Programming Languages
Python, TypeScript, GoCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$45
|
Standard
$95
|
Advanced
$195
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 5 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
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MA
Mr Ali A.
May 21, 2026
Laravel 11: small Artisan task to clean up stale pending orders (1 hour, $20)
Quick and efficient Laravel 11 task completed professionally. Cleaned up stale pending orders via Artisan command with clear logic and proper scheduling considerations. Communication was smooth, delivery was on time, and attention to detail was solid. Would gladly work together again.
About Atif
Senior Backend Engineer | Python + Node.js + Go | AI Agents & LLM SaaS
Islamabad, Pakistan - 1:01 am local time
Recent shipped work:
- Axon: production AI agent SaaS (multi-tenant, RAG, mobile companion, Stripe billing)
- OdooForge: cloud-portable Odoo deploy kit with an AI helpdesk module
- StoreBridge: multi-tenant Shopify SaaS with Postgres RLS and HMAC webhook verification
- n8n Agent Studio: 3-workflow AI automation portfolio with a Next.js dashboard
What I help clients build:
- AI agents and LLM-integrated SaaS (Claude, OpenAI, LangGraph, RAG, semantic search)
- Multi-tenant backends with RLS, audit trails, and clean tenant isolation
- Scalable REST APIs (FastAPI, Node.js, Laravel, Symfony)
- Async pipelines and real-time data flows (RabbitMQ, Redis, Go workers)
- Production observability (Kong, ELK, structured logs, CI/CD)
How I work:
- Ask the right questions before writing code
- Ship a working prototype in week 1, not at the end
- Clean architecture and tests your next engineer can actually maintain
- Async, clear communication. No ghosting, no surprises.
Steps for completing your project
After purchasing the project, send requirements so Atif can start the project.
Delivery time starts when Atif receives requirements from you.
Atif works on your project following the steps below.
Revisions may occur after the delivery date.
Review your stack and the API documentation
I read your codebase and the third-party API docs to confirm the integration shape and authentication flow before writing code.
Wire in the API client
Add the API client to your backend with proper authentication, secure credential storage, and a clean abstraction layer.