You will get API Integration Expert | Backend Automation | Custom Development
Project details
Need secure, scalable, and reliable API integrations for your application? I build custom backend solutions that connect your software with third-party platforms, payment systems, CRMs, AI services, and cloud tools.
Whether you're building a SaaS product, AI application, or enterprise platform, I deliver production-ready integrations designed for performance, security, and long-term scalability.
What I Deliver:
• Custom REST API & third-party integrations
• Payment gateway integrations (Stripe, PayPal, etc.)
• CRM, ERP, and business system integrations
• AI API integrations (OpenAI, Claude, Gemini)
• Secure authentication with OAuth & JWT
• Webhooks and event-driven automation
• Backend APIs using FastAPI, Python, PHP, and Laravel
• API optimization, asynchronous processing, and caching
• Swagger/OpenAPI documentation
• Clean, maintainable, production-ready code
Let's discuss your project! Schedule a quick 15-minute call to review your requirements, explore the best integration approach, and create a secure, scalable solution tailored to your business.
Whether you're building a SaaS product, AI application, or enterprise platform, I deliver production-ready integrations designed for performance, security, and long-term scalability.
What I Deliver:
• Custom REST API & third-party integrations
• Payment gateway integrations (Stripe, PayPal, etc.)
• CRM, ERP, and business system integrations
• AI API integrations (OpenAI, Claude, Gemini)
• Secure authentication with OAuth & JWT
• Webhooks and event-driven automation
• Backend APIs using FastAPI, Python, PHP, and Laravel
• API optimization, asynchronous processing, and caching
• Swagger/OpenAPI documentation
• Clean, maintainable, production-ready code
Let's discuss your project! Schedule a quick 15-minute call to review your requirements, explore the best integration approach, and create a secure, scalable solution tailored to your business.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$115
|
Standard
$225
|
Advanced
$315
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 3 | 5 | 7 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
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GH
George H.
Aug 6, 2026
n8n Automation Developer for Lead Scoring
Excellent freelancer to work with. Clear requirements, prompt communication, and a professional experience from start to finish.
JS
Jussi S.
Sep 13, 2024
Need Jhipster developer
DJ
D J.
Feb 16, 2019
The Assorted Search Field Feature
AMAZING Skills!!!! He is definitely the programmer your looking for,.... Thank's again.
DJ
D J.
Jan 20, 2019
Game
I am incredibly satisfied with Roshaan's work. He beat my expectations and performed a job that I didn't think could be done. He kept the line of communication open throughout the duration of our contract and was very professional. He's great at providing solutions and thinking outside of the box. I couldn't have picked a better freelancer for this job. I will definitely be hiring him again. Thank you!
About Roshaan
AI Automation Developer | n8n, Make & Zapier | CRM Workflows
Lahore, Pakistan - 2:24 pm local time
I build n8n automation systems that remove manual lead follow-up, data entry, and reporting for small business teams. My most recent n8n project was a lead-scoring pipeline with Twilio and CRM sync, delivered and rated 5.0 by the client.
Most teams lose hours every week to follow-ups that never get sent, records typed in twice, and tools that do not talk to each other. I map the process first, find the steps actually worth automating, then build the workflow in n8n, Make, or Zapier with an OpenAI or Claude agent handling the parts that need judgment. I have completed 8 projects and more than 190 hours of automation work on Upwork.
My n8n and AI agent work includes custom AI agents with tool calling and API access, AI assistants for sales and support, CRM automation for HubSpot, Salesforce, Pipedrive and Zoho, lead capture and qualification workflows, RAG knowledge assistants, OpenAI and Claude API integrations, and Python scripts for the pieces no-code cannot reach.
If you want to cut manual work out of your lead or support process, send me a short description of how it runs today and I will tell you which parts are worth automating.
Steps for completing your project
After purchasing the project, send requirements so Roshaan can start the project.
Delivery time starts when Roshaan receives requirements from you.
Roshaan works on your project following the steps below.
Revisions may occur after the delivery date.
Step 1
requirement Gathering
Step 2
start work