You will get a Scalable, Secure Backend & API built with Node.js & FastAPI
Rising Talent
Rising Talent
Project details
Your app is only as strong as what's running behind it. A slow API, a poorly structured database, or a security gap can cost you users, money, and sleep. That's exactly what I'm here to prevent.
I build backend infrastructure that keeps your product fast, secure, and ready to scale ā whether you're launching an MVP or handling thousands of users a day.
What I'll build for you:
š Secure auth ā JWT, OAuth2, social login & role-based permissions
š³ Payments ā Stripe, PayPal, subscriptions & one-time charges
š” REST & GraphQL APIs ā fast, documented, frontend-ready
šļø Database design ā MongoDB, PostgreSQL, MySQL, optimized from day one
š Third-party integrations ā any external service, webhook, or data feed
š³ Deployment-ready ā Docker, CI/CD, AWS, Railway & Vercel
ā” Performance ā Redis caching & query optimization for real traffic
You won't get:
ā Code you can't maintain or hand off
ā Security gaps you discover too late
ā A developer who vanishes after delivery
Clean architecture. Clear communication. Code that works in production ā not just on localhost.
Have a project in mind? Let's scope it out.
I build backend infrastructure that keeps your product fast, secure, and ready to scale ā whether you're launching an MVP or handling thousands of users a day.
What I'll build for you:
š Secure auth ā JWT, OAuth2, social login & role-based permissions
š³ Payments ā Stripe, PayPal, subscriptions & one-time charges
š” REST & GraphQL APIs ā fast, documented, frontend-ready
šļø Database design ā MongoDB, PostgreSQL, MySQL, optimized from day one
š Third-party integrations ā any external service, webhook, or data feed
š³ Deployment-ready ā Docker, CI/CD, AWS, Railway & Vercel
ā” Performance ā Redis caching & query optimization for real traffic
You won't get:
ā Code you can't maintain or hand off
ā Security gaps you discover too late
ā A developer who vanishes after delivery
Clean architecture. Clear communication. Code that works in production ā not just on localhost.
Have a project in mind? Let's scope it out.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$250
|
Standard
$600
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 6 days |
Number of Revisions | 2 | 4 | 6 |
Number of Pages | 2 | 4 | 7 |
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | |||
Source Code |
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HT
Hamza T.
Mar 14, 2026
Build an AI-Powered Tax Filing Lawyer Assistant Using LangGraph (Multi-Agent RAG System)
Working with Abdullah Salman on the AI-Powered Tax Filing Lawyer Assistant was an outstanding experience. He demonstrated exceptional technical depth in architecting the multi-agent RAG system using LangGraph, building a robust Python FastAPI backend, and seamlessly integrating complex AI workflows with a polished, production-grade Next.js frontend. His attention to detail ā from intelligent agent orchestration to a clean, intuitive UI ā truly set this project apart. I would highly recommend him for any advanced AI or full-stack project.
ZJ
Zeshan J.
Jul 21, 2025
Debug and Enhance Local Home Services Marketplace MVP (Next.js + Express.js)
Abdullah delivered exceptional work ā the design was implemented perfectly and he was responsive across all devices. Highly professional and easy to work with ā truly top-tier service!
HC
Harriett C.
Jun 2, 2025
Redesign an Existing One-Page Website in Next.js to Be Responsive and Pixel-Perfect Figma Design
Abdullah delivered exceptional work ā the design was implemented pixel-perfectly and fully responsive across all devices. Highly professional and easy to work with ā truly top-tier service!
MA
Marium A.
May 16, 2025
Basic HTML JS AND CSS task
Great job cant wait to work with you again! I very much recommend Abdullah!
About Abdullah
React.js & Node.js Developer
100%
Job Success
Lahore Cantt, PakistanĀ - 12:23 pm local time
š¤ If you've been burned by missed deadlines, poor communication, or half-finished work ā I work differently. If I don't deliver exactly what we agreed, you get a full refund. No disputes, no drama.
ā 100% Job Success Score. Every project. Every client. Every time.
Most React.js developers tell you what they can do. Here's what I've already built:
ā A RAG-powered legal AI (KinGuard AI) ā LangChain, vector embeddings, OpenAI. 10,000+ families use it for citation-backed legal answers before ever stepping into a lawyer's office.
ā A tax advisory AI agent (QA-HUB) ā helping 100,000+ Americans save an average of 40% on taxes annually. Real-time, compliance-aware. Zero hallucinations.
ā A payment system that processed $2M+ in credits in its first year (inKind).
ā Infrastructure handling 10,000+ concurrent users at 99.9% uptime on AWS (First Movers AI Labs).
ā A hiring engine that cut technical screening time by 60% (TestRabbit).
ā 5 years. 15+ satisfied clients. Zero disappeared-on projects.
- Full Stack: React.js, Next.js, Node.js, Python, FastAPI, Ruby on Rails
- AI & RAG: LangChain, LangGraph, RAG pipelines, vector databases, OpenAI
- Infrastructure: AWS, Docker, Vercel
- Databases: PostgreSQL, Redis, MongoDB
I've shipped for early-stage SaaS startups and companies serving hundreds of thousands of users. I know the difference between code that demos well and code that survives production.
If you're looking for a React.js developer who delivers, tell me what you're building.
Steps for completing your project
After purchasing the project, send requirements so Abdullah can start the project.
Delivery time starts when Abdullah receives requirements from you.
Abdullah works on your project following the steps below.
Revisions may occur after the delivery date.
š 1. Requirement Gathering
Understand your goals, features, and tech preferences to align the project scope.
š§© 2. System Design & Architecture
Plan the structure, database schema, and app architecture (MERN, NestJS, etc.).