MongoDB Schema Design

Mongoose Validation

Database Indexing

Aggregation Pipelines

Redis Caching

DAO Pattern

RESTful API Design

Express Middleware

JWT Authentication

Password Hashing (bcryptjs)

Rate Limiting

CORS Configuration

Security Best Practices (Helmet)

Performance Tuning

React Component Architecture

React Hooks

Context API

Form Handling & Validation

State Management Patterns

Responsive Design

Code Splitting

ESLint & Prettier

Jest Testing

Git Hooks (Husky)

Postman API Testing

Gemini API

Prompt Engineering

AI Error Handling

LangChain Basics

Memory Management

RAG (Retrieval-Augmented Generation)

Vector Databases

MCP Server

AI Chatbot/Agent Development

Vercel Deployment

Render Deployment

AWS EC2 Setup

Docker Containerization

Application Monitoring

GitHub Actions

CI/CD Pipelines

Environment Management

Secrets Management

Environment Variables

Browser Log Analysis

Node.js Logs

Deployment Logs

Browser Developer Tools

Network Debugging

Postman Debugging

Error Handling

Performance Profiling

Memory Leak Detection

Production-Ready MERN App

User Authentication

CRUD Operations

Data Validation

AI-Powered Features

Platform Deployment

API Documentation

GitHub Repository

CI/CD Implementation

Coding Standards

Redis Caching

Scalable Architecture