You will get Develop scalable backend systems, apis and microservices architecture
Project details
Scalable Backend Developer | REST APIs, Microservices & Cloud Architecture
Need a secure, scalable, and high-performance backend system for your startup, SaaS, or enterprise application? I build production-ready backend architectures designed for speed, reliability, and long-term scalability
I specialize in REST API development, microservices architecture, authentication systems, real-time applications, and cloud-ready backend solutions for modern web and mobile app
Backend Services:
• REST API Development & Integration
• Microservice Architecture
• Node.js & Python (FastAPI) Backend Development
• Authentication & Authorization System
• Database Design & Optimization
• Payment Gateway API Integration
• Real-Time WebSocket Applications
• Cloud Deployment & Docker Setup
• API Gateway & Third-Party Integration
Tech Stack:
Node.js, Python, FastAPI, MongoDB, PostgreSQL, Redis, Docker, WebSockets, Microservices, Cloud Infrastructure
Why Choose Me?
• Scalable Architecture
• Secure & Clean Code
• High-Performance API
• Real-Time System Experience
• Long-Term Solutions
Perfect For:
Startups, SaaS Platform, Enterprise Tool, AI App, Mobile Backend, CRM System, and Custom Web Application
Need a secure, scalable, and high-performance backend system for your startup, SaaS, or enterprise application? I build production-ready backend architectures designed for speed, reliability, and long-term scalability
I specialize in REST API development, microservices architecture, authentication systems, real-time applications, and cloud-ready backend solutions for modern web and mobile app
Backend Services:
• REST API Development & Integration
• Microservice Architecture
• Node.js & Python (FastAPI) Backend Development
• Authentication & Authorization System
• Database Design & Optimization
• Payment Gateway API Integration
• Real-Time WebSocket Applications
• Cloud Deployment & Docker Setup
• API Gateway & Third-Party Integration
Tech Stack:
Node.js, Python, FastAPI, MongoDB, PostgreSQL, Redis, Docker, WebSockets, Microservices, Cloud Infrastructure
Why Choose Me?
• Scalable Architecture
• Secure & Clean Code
• High-Performance API
• Real-Time System Experience
• Long-Term Solutions
Perfect For:
Startups, SaaS Platform, Enterprise Tool, AI App, Mobile Backend, CRM System, and Custom Web Application
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$120
|
Standard
$400
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 4 days | 7 days | 25 days |
Number of Revisions | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
About Ranijth
Full Stack Developer | Blockchain Expect | AI | Mern | Web3 | Devops
Chennai, India - 3:08 am local time
Two of my live products:
haxswap com (crypto P2P exchange) and b4bwallet com (Web3 wallet) — both built from scratch and running in production today.
If you need clean code, fast delivery, and someone who takes ownership — that's exactly how I work.
WHAT I BUILD
Full Stack Web Apps:
React.js, Next.js, Node.js, Express, MongoDB, PostgreSQL, REST APIs, WebSockets, authentication systems, SaaS platforms
Figma to React/Next.js:
Pixel-perfect UI conversion from any Figma design — responsive, component-based, production-ready
Admin Dashboards & SaaS Platforms:
Data tables, analytics dashboards, role-based access, real-time updates, scalable architecture
AI Integration & Automation:
OpenAI API, Claude API, LangChain, RAG systems, AI chatbots, document Q&A platforms, workflow automation
Blockchain & Web3:
Smart contracts (Solidity), CEX/DEX/P2P exchanges, DeFi platforms, wallet integration, ERC20 tokens, DApps, RWA, Assets Tokenization
DevOps & Deployment:
Docker, AWS, Ubuntu VPS, Nginx, PM2, CI/CD pipelines, SSL setup, Redis caching
REAL PRODUCTION EXPERIENCE
Built and deployed haxswap — a live crypto exchange with P2P trading, real-time order processing, USDT/TRC-20 support, and wallet integration.
Built b4bwallet — a production Web3 wallet with multi-chain support and secure transaction handling.
Built a full AI RAG chatbot platform — PDF/DOCX/CSV uploads, GPT-4 grounded answers, vector search using pgvector, deployed with Docker and FastAPI.
Worked on a Dubai-based crypto exchange backend — P2P trading engine, fund flow architecture, real-time transaction processing, financial-grade security.
This is production experience, not tutorial projects.
TECH STACK
Frontend: React.js, Next.js, TypeScript, Tailwind CSS, Redux
Backend: Node.js, Express.js, Python, FastAPI
Database: MongoDB, PostgreSQL, Redis
AI: OpenAI API, Claude API, LangChain, pgvector, RAG
Blockchain: Solidity, Ethers.js, Web3.js, Hardhat, EVM
DevOps: Docker, AWS, Nginx, PM2, CI/CD, Ubuntu VPS
Payments: Stripe, PayPal, Crypto payments, Webhooks
If you're building something that needs to work at scale — not just look good in a demo — let's talk.
Skills:
React.js, Next.js, TypeScript, MongoDB, Node.js, REST API Development, OpenAI API, Full Stack Development, Figma to HTML/CSS, Admin Dashboard, Docker, PostgreSQL, Express.js
Full Stack
React.js
Next.js
Node.js
TypeScript
JavaScript
Express.js
MongoDB
PostgreSQL
REST API Development
Full Stack Development
AI
AI Development
OpenAI API
LangChain
Python
Frontend/UI
Figma to HTML/CSS
Admin Dashboard
Blockchain
Solidity
Web3.js
DeFi
Smart Contract Development
DevOps
Docker
API Integration
Steps for completing your project
After purchasing the project, send requirements so Ranijth can start the project.
Delivery time starts when Ranijth receives requirements from you.
Ranijth works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Discussion & Project Planning