PrepX - Tech Career Development Platform

A comprehensive career development platform designed specifically for tech professionals. PrepX combines AI-powered resume analysis, interactive coding quizzes, tech event discovery, and professional networking to accelerate your tech career.

🚀 Features Overview

🧠 Interactive Coding Quizzes

• Multi-Language Support: Practice coding questions in HTML, CSS, JavaScript, Python, Java, and C++
• Difficulty Levels: Easy, Medium, and Hard questions to match your skill level
• Real-time Scoring: Instant feedback with detailed explanations
• Progress Tracking: Monitor your improvement across different programming languages
• Randomized Questions: Fresh challenges every time you practice

📄 AI-Powered Resume Analysis

• Smart Resume Parsing: Upload PDFs and get comprehensive analysis
• ATS Optimization: Check compatibility with Applicant Tracking Systems
• Skills Assessment: Identify strengths and areas for improvement
• Keyword Analysis: Optimize for job descriptions and industry standards
• Actionable Feedback: Detailed suggestions for resume enhancement
• Score-based Evaluation: Get quantified feedback on various resume aspects

🎯 Tech Events Discovery

• Categorized Events: Filter by AI/ML, Web3/Blockchain, Development, DevOps, Cybersecurity
• Real-time Filtering: Find events by category with live counts
• Event Details: Comprehensive information including dates, locations, and registration links
• Tag System: Discover events through detailed tagging
• Submit Events: Community-driven event submissions

👤 Professional Profiles

• Coding Platform Integration: Connect LeetCode, GitHub, HackerRank, Codeforces, CodeChef accounts
• Social Media Links: LinkedIn, Twitter, Instagram, YouTube, personal websites
• Profile Customization: Upload avatars and showcase your professional presence
• Public Profiles: Share your achievements with the community
• Achievement Tracking: Display your coding accomplishments across platforms

🔐 Authentication & Security

• Secure Registration: Email verification with OTP
• JWT Authentication: Secure session management
• Rate Limiting: Protection against abuse and spam
• Password Security: Encrypted password storage with bcryptjs

🛠️ Technology Stack

Backend

• Node.js with Express.js framework
• MongoDB with Mongoose ODM
• JWT for authentication
• Cloudinary for file storage
• Resend for email services
• Google Generative AI for resume analysis
• Upstash Redis for rate limiting
• Multer for file uploads

Frontend

• React 18 with modern hooks
• Vite for fast development and building
• React Router for navigation
• Framer Motion for animations
• React Hot Toast for notifications
• Tailwind CSS for styling
• Lucide React for icons

Database & Storage

• MongoDB Atlas for data persistence
• Cloudinary for image and file storage
• Upstash Redis for caching and rate limiting

📋 Prerequisites

• Node.js 18+ and npm
• MongoDB Atlas account
• Cloudinary account (for file storage)
• Resend account (for emails)
• Google AI API key (for resume analysis)

🔧 Installation & Setup

1. Clone the Repository

git clone https://github.com/yourusername/prepX.git
cd prepX

2. Backend Setup

cd backend
npm install

Create a .env file in the backend directory:

MONGODB_URI=your_mongodb_connection_string
JWT_SECRET=your_jwt_secret
CLOUDINARY_CLOUD_NAME=your_cloudinary_cloud_name
CLOUDINARY_API_KEY=your_cloudinary_api_key
CLOUDINARY_API_SECRET=your_cloudinary_api_secret
RESEND_API_KEY=your_resend_api_key
GOOGLE_GENAI_API_KEY=your_google_ai_api_key
UPSTASH_REDIS_REST_URL=your_upstash_redis_url
UPSTASH_REDIS_REST_TOKEN=your_upstash_redis_token

3. Frontend Setup

cd frontend
npm install

4. Database Seeding (Optional)

cd backend
npm run seed:events  # Seed sample events data

🚀 Running the Application

Development Mode

# Start backend (from backend directory)
npm run dev

# Start frontend (from frontend directory)
npm run dev

Production Mode

# Build frontend
cd frontend
npm run build

# Start backend
cd backend
npm start

The application will be available at:

• Frontend: http://localhost:5173
• Backend API: http://localhost:5000

📱 Application Structure

Frontend Pages

• Landing Page: Introduction and feature overview
• Authentication: Login, Register, Email Verification
• Dashboard: Personalized user home
• Quiz Platform: Interactive coding challenges
• Events: Tech event discovery and filtering
• Resume Analysis: AI-powered resume review
• Profile Management: User profiles and social links
• Public Profiles: Community showcase

Backend API Endpoints

Authentication

• POST /api/auth/register - User registration
• POST /api/auth/login - User login
• POST /api/auth/verify-email - Email verification
• POST /api/auth/logout - User logout

User Management

• GET /api/users/profile - Get user profile
• PUT /api/users/profile - Update coding profiles
• PUT /api/users/social-links - Update social media links
• POST /api/users/avatar - Upload profile picture

Quizzes

• GET /api/quiz/:language - Get quiz questions
• POST /api/quiz/submit - Submit quiz answers

Events

• GET /api/events - Get events (with category filtering)
• GET /api/events/categories - Get category statistics
• GET /api/events/:id - Get specific event details

Resume Analysis

• POST /api/resume/upload - Upload and analyze resume
• GET /api/resume/history - Get analysis history

External Integrations

• GET /api/external/github/:username - GitHub profile data
• GET /api/external/leetcode/:username - LeetCode statistics

🎨 Key Features in Detail

Quiz System

• Dynamic Question Pool: Hundreds of questions across multiple languages
• Smart Scoring: Weighted scoring based on difficulty
• Progress Analytics: Track improvement over time
• Language-specific: Tailored questions for each programming language

Event Platform

• Smart Categorization: AI/ML, Web3, Development, DevOps, Cybersecurity
• Real-time Counts: Live statistics for each category
• Rich Event Data: Dates, locations, organizers, registration links
• Community Driven: Submit your own events

Resume Analyzer

• AI-Powered Analysis: Google Generative AI for intelligent feedback
• Multiple Metrics: Scoring across various resume aspects
• Actionable Insights: Specific recommendations for improvement
• ATS Compatibility: Optimization for applicant tracking systems

Profile System

• Multi-Platform Integration: Connect all your coding profiles
• Social Presence: Complete professional online presence
• Public Showcase: Share achievements with the community
• Customizable: Upload avatars and personalize your profile

🔒 Security Features

• JWT Authentication with secure token management
• Email Verification for account security
• Rate Limiting to prevent abuse
• Input Validation and sanitization
• Secure File Uploads with type validation
• Environment Variables for sensitive configuration

🌟 Future Enhancements

• Mock Interviews: AI-powered interview practice
• Job Board Integration: Direct job applications
• Mentorship Platform: Connect with industry mentors
• Skill Assessments: Comprehensive technical evaluations
• Team Challenges: Collaborative coding competitions
• Mobile App: Native iOS and Android applications