You will get Build Secure & Scalable Backend APIs Using Python, FastAPI, Django, Node.js
Top Rated

Project details
You will get a scalable, secure, and production-ready backend that powers your web or mobile application. With over 6+ years of experience in Python, FastAPI, Django, Node.js, and NestJS, I specialize in building backend systems for startups, SaaS platforms, and MVPs.
My focus is on clean, maintainable code, seamless API integrations, and performance optimization. Every project I deliver is fully tested, documented, and ready for deployment, ensuring your application runs smoothly and scales as your business grows.
Whether you need a new API, a complete backend for your MVP, or a robust SaaS infrastructure, I bring technical expertise and a business-first approach to ensure your product succeeds.
My focus is on clean, maintainable code, seamless API integrations, and performance optimization. Every project I deliver is fully tested, documented, and ready for deployment, ensuring your application runs smoothly and scales as your business grows.
Whether you need a new API, a complete backend for your MVP, or a robust SaaS infrastructure, I bring technical expertise and a business-first approach to ensure your product succeeds.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $100
These options are included with the project scope.
$100
- Delivery Time 5 days
- Number of Revisions 2
- Number of Pages 0
- Design Customization
- Responsive Design
- Source Code
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Shahzad H.
Feb 17, 2026
Python AI Automation Backend Developer
He gives his best to project and always available when texted plus gives update to each and every step completed. He is professional and punctual and I would definitely rehire him for in future when required.
AZ
Ahmed Z.
Dec 14, 2025
React Native Mobile App Developer
Excellent work on our React Native mobile app. He is highly skilled, reliable, and clearly understands best practices in React Native development. The app was delivered with clean code, smooth performance, and great attention to detail. I’m very satisfied with the results and would definitely recommend him for any mobile app development work. Looking forward to working together again.
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Nikolas P.
Feb 10, 2024
App development in react native (cross platform) - 10 screens
I had the pleasure of working with Abdur Rehman on my React Native project. Their work exceeded my expectations, delivering a top-notch app with great attention to detail. Communication was seamless and the tight deadlines were consistently met. I highly recommend Abdur's services and really look forward to a future collaboration
NP
Nikolas P.
Jan 22, 2024
Cross platform app development in react native
Great to work with him and I'll be hiring him again. He delivered high-quality work on time and under budget. His communication is clear, concise, and effective, and he works with minimal direction in spite of ambiguity. He sent me a bullet-pointed status update each day and quickly notified me. He offered advice and feedback to help save my time and money. Thank you, for owning this work and delivering results.
About Abdur
Full Stack developer, AI Engineer, Python, Django, Automation expert
100%
Job Success
Lahore, Pakistan - 2:04 am local time
I'm Abdur Rehman — a Full Stack Engineer & AI Automation Specialist with 6+ years of experience building production-ready AI systems, scalable backends, intelligent chatbots, and cross-platform mobile apps for startups, SaaS companies, and growing businesses worldwide.
⭐ Top Rated · 100% Job Success · 9 Projects Delivered · 181+ Hours · Available Now ⚡
🤖 AI AUTOMATION & INTELLIGENT SYSTEMS
✔ AI Automation Workflows — n8n, Make (Integromat), Zapier
✔ AI Agents & Autonomous Multi-Agent Systems
✔ LLM Integration — Claude AI, OpenAI GPT-4o, Gemini
✔ RAG Systems & Custom Knowledge Base (LangChain, LlamaIndex)
✔ AI Chatbots & Conversational AI for Customer Support & Sales
✔ Voice AI Agents & AI Phone Calling Systems
✔ CRM Automation — HubSpot, Salesforce, Pipedrive, GoHighLevel
✔ Lead Generation & Automated Sales Pipeline Systems
✔ AI-Powered Document Processing & Data Extraction
✔ Business Process Automation (End-to-End)
🐍 PYTHON BACKEND & API DEVELOPMENT
✔ High-Performance REST APIs — FastAPI, Django, Flask, DRF
✔ Scalable SaaS Platforms & Multi-Tenant Architecture
✔ Authentication & Security — JWT, OAuth2, RBAC, SSO
✔ Microservices & Distributed System Design
✔ Real-Time Systems — WebSockets, Celery, Redis Queues
✔ Database Design & Optimization — PostgreSQL, MySQL, MongoDB
✔ Cloud Deployment — AWS (EC2, S3, Lambda), Docker, CI/CD
✔ Web Scraping & Data Automation — Scrapy, Selenium, BeautifulSoup
✔ Third-Party Integrations — Stripe, Twilio, SendGrid, OpenAI API
💻 FULL STACK WEB DEVELOPMENT
✔ Frontend — React.js, Next.js, TypeScript, Tailwind CSS
✔ Backend — Python (FastAPI, Django), Node.js, NestJS, Express
✔ Full Stack SaaS Applications — MVP to Production
✔ Admin Dashboards & Business Intelligence Panels
✔ API Integration & Webhook Automation
✔ Headless CMS & E-Commerce Platforms
📱 MOBILE APP DEVELOPMENT
✔ Cross-Platform Apps — React Native (iOS & Android)
✔ Firebase, Push Notifications & Real-Time Features
✔ Payment Integration — Stripe, Apple Pay, In-App Purchases
✔ Figma to Pixel-Perfect Mobile UI
✔ App Store & Google Play Full Deployment
🛠 COMPLETE TECH STACK
AI & LLMs: Claude AI · OpenAI GPT-4o · LangChain · LlamaIndex · Gemini · Groq
Automation: n8n · Make · Zapier · Python Scripts · Selenium
Backend: Python · FastAPI · Django · Flask · Node.js · NestJS · Express
Frontend: React.js · Next.js · TypeScript · Tailwind CSS · Redux
Mobile: React Native · Expo · Firebase · Redux
Databases: PostgreSQL · MySQL · MongoDB · Redis · Supabase · Airtable
Cloud & DevOps: AWS · Docker · GitHub Actions · CI/CD · Vercel · Railway
CRM & Tools: HubSpot · Salesforce · GoHighLevel · Notion · Slack · Google Workspace
📈 RESULTS CLIENTS ACTUALLY GET
✔ 60–80% reduction in manual work from Day 1
✔ AI chatbots handling 500+ customer queries/day automatically
✔ APIs handling 10x more traffic without downtime
✔ MVPs built and deployed to production in 2–4 weeks
✔ 40–70% faster query response after optimization
✔ Automated lead systems generating 3x more qualified leads
💬 WHY CLIENTS CHOOSE ME & KEEP COMING BACK
✅ One developer — full solution — AI + Backend + Frontend + Mobile
✅ Production-ready systems — not demos, not prototypes
✅ AI-first thinking — every system I build is intelligent & scalable
✅ Fast delivery — most projects live in 1–3 weeks
✅ 100% Job Success — every single client satisfied & delivered
✅ Zero ghosting — daily updates, clear communication always
✅ Business-first — I solve problems, not just write code
Steps for completing your project
After purchasing the project, send requirements so Abdur can start the project.
Delivery time starts when Abdur receives requirements from you.
Abdur works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis & Planning
Review client-provided details, clarify requirements, and create a clear backend roadmap for development.
Database Design & Setup
Design database schema, configure the database, and prepare tables/collections for smooth API integration.