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You will get API Development & Integrations | REST, GraphQL, Stripe, Twilio, and More

Chaudhry I.Status: Offline
Chaudhry I. Chaudhry I.
5.0
Top Rated
Preview imagePreview image

Let a pro handle the details

Buy Web Application Programming services from Chaudhry, priced and ready to go.
Chaudhry I.Status: Offline
Chaudhry I. Chaudhry I.
5.0
Top Rated
Preview imagePreview image

Let a pro handle the details

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

Project details

Need a reliable API built or integrated into your platform? I design and develop secure, scalable APIs and connect third-party services (Stripe, Twilio, HubSpot, Slack, Google APIs, etc.) into your apps.

Whether you need a custom REST/GraphQL API, payment gateway, CRM integration, or microservice architecture, I deliver production-ready solutions using Node.js, Python, FastAPI, Express, PostgreSQL, and AWS/GCP.

What you get:
 • Custom REST or GraphQL API design
 • Secure authentication (OAuth2, JWT)
 • Third-party service integrations (Stripe, PayPal, Twilio, Slack, Google APIs)
 • Database integration (PostgreSQL, MySQL, MongoDB)
 • Deployment to AWS, GCP, or Vercel/Netlify
Programming Languages
PHP, JavaScript, Python
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$39
Standard
$139
Advanced
$299
Delivery Time 3 days 5 days 7 days
Number of Revisions
123
Number of Pages
2510
Design Customization
-
-
-
Content Upload
-
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-
Responsive Design
-
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Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$39 - $99
Additional Revision
+$39
Additional Page (+ 2 Days)
+$39
Content Upload (+ 2 Days)
+$29

Frequently asked questions

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65 reviews
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Chaudhry I.Status: Offline

About Chaudhry

Chaudhry I.Status: Offline
AI Backend Engineer | Multi-Tenant SaaS, RAG Agents, Fractional CTO
100% Job Success
5.0  (65 reviews)
Islamabad, Pakistan - 10:33 pm local time
I build AI agents, SaaS products, backend systems, and cloud platforms that are designed for production from day one, not prototypes that need to be rewritten six months later.

Today, anyone can generate code with AI. Very few engineers can design systems that continue to perform when real users, payments, integrations, concurrency, and operational complexity enter the picture.

That's where I work best.

What I'm best at
• AI-powered SaaS platforms and multi-tenant applications
• Production AI systems, AI agents, RAG pipelines, and workflow automation
• High-performance backend infrastructure and distributed systems
• Payment, subscription, and Stripe integrations
• Real-time applications, dashboards, and event-driven architectures
• API development, third-party integrations, and microservices
• Enterprise platforms with RBAC, workflows, and business automation

For founders and teams who need senior technical ownership without a full-time hire, I also work as a fractional CTO — architecture decisions, technical roadmap, and hands-on delivery from one person instead of a hand-off between a consultant and a dev team.

Technologies I use

Node.js, TypeScript, Python, PHP, Laravel, React, Next.js, FastAPI, PostgreSQL, MySQL, Redis, MongoDB, AWS, Docker, Kubernetes, OpenAI, Claude, LangChain, LangGraph, and modern cloud-native architectures.

Clients typically bring me in when they need to:
• Build AI agents with tool calling, RAG, memory, and multi-step workflow orchestration
• Turn vibe-coded applications into production-ready systems
• Refactor AI-generated MVPs into scalable, maintainable, production-grade platforms
• Build a SaaS product from the ground up
• Integrate AI into an existing platform
• Rescue or scale a backend that's becoming difficult to maintain
• Improve performance, reliability, and cloud architecture
• Own complex technical problems from architecture through production deployment

I care about building software that remains maintainable, scalable, and reliable long after launch. Clean architecture, performance, observability, cost efficiency, and long-term stability are built into every project, not added later.

If you're building a serious AI product, SaaS platform, or business-critical application and need an engineer who can take ownership from architecture to production, I'd be happy to discuss your project.

Steps for completing your project

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

Delivery time starts when Chaudhry receives requirements from you.

Chaudhry works on your project following the steps below.

Revisions may occur after the delivery date.

Requirement Analysis

Gather use cases, confirm endpoints, integrations, and security needs.

Development

Build endpoints, logic, and connect databases/APIs.

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