You will get fix website bugs, React issues, Node.js errors and backend problems
Project details
Professional React.js, Next.js & Node.js Bug Fixing Services
Having issues with your website, React app, Node.js backend, APIs, or SaaS platform?
I provide professional debugging, bug fixing, optimization, and performance improvement services for modern web applications and scalable SaaS products.
Services I Offer
✔ React.js and Next.js Bug Fixes & Build Issues
✔ Node.js Backend Troubleshooting
✔ REST API & GraphQL Error Fixing
✔ Database Issues
✔ Authentication & Authorization Problems
✔ Payment Gateway Integration Bugs
✔ Deployment & Hosting Issues
✔ Website Speed & Performance Optimization
✔ Server Configuration & DevOps Support
✔ Responsive UI & Frontend Fixes
✔ SEO Optimization
Technologies Supported
React.js • Next.js • Node.js • Express.js • MongoDB • JavaScript • TypeScript • PHP • Python • REST APIs • Firebase • Vercel • AWS • Docker
Why Choose My Service?
•Fast and reliable debugging
•Clean, scalable solutions
•Performance optimization
•SEO-friendly
•Secure and maintainable code
Whether your application has frontend bugs, backend errors, API failures, deployment issues, or performance bottlenecks, I can help identify and resolve problems quickly and efficiently.
Having issues with your website, React app, Node.js backend, APIs, or SaaS platform?
I provide professional debugging, bug fixing, optimization, and performance improvement services for modern web applications and scalable SaaS products.
Services I Offer
✔ React.js and Next.js Bug Fixes & Build Issues
✔ Node.js Backend Troubleshooting
✔ REST API & GraphQL Error Fixing
✔ Database Issues
✔ Authentication & Authorization Problems
✔ Payment Gateway Integration Bugs
✔ Deployment & Hosting Issues
✔ Website Speed & Performance Optimization
✔ Server Configuration & DevOps Support
✔ Responsive UI & Frontend Fixes
✔ SEO Optimization
Technologies Supported
React.js • Next.js • Node.js • Express.js • MongoDB • JavaScript • TypeScript • PHP • Python • REST APIs • Firebase • Vercel • AWS • Docker
Why Choose My Service?
•Fast and reliable debugging
•Clean, scalable solutions
•Performance optimization
•SEO-friendly
•Secure and maintainable code
Whether your application has frontend bugs, backend errors, API failures, deployment issues, or performance bottlenecks, I can help identify and resolve problems quickly and efficiently.
Programming Languages
PHP, JavaScript, PythonCoding Expertise
PSD to HTML, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$5
|
Standard
$40
|
Advanced
$200
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 5 days |
Number of Revisions | 0 | 0 | 0 |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments |
Frequently asked questions
About Ranijth
Full Stack Developer | Blockchain Expect | AI | Mern | Web3 | Devops
Chennai, India - 12:19 pm 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