AI-Powered Interview Preparation System

AI-Powered Interview Preparation System is a full-stack web application that helps job seekers prepare smarter using Google Gemini AI. Simply upload your resume (PDF) and paste the job description — the AI analyzes your profile against the role and generates a complete, personalized interview strategy in seconds.

WHAT'S INCLUDED

• Full Source Code (Frontend + Backend)

• Environment setup guide (.env configuration)

• MongoDB schema & models

• Ready-to-run Node.js REST API

• React + Vite frontend with SCSS styling

TECH STACK

Frontend : React 19, Vite 7, React Router 7, Axios, Sass

Backend  : Node.js, Express 5, MongoDB, Mongoose

Auth   : JWT (cookie-based), bcryptjs

AI    : Google Gemini (gemini-flash) via @google/genai

PDF    : pdf-parse (resume extraction), Puppeteer (resume generation)

Validation: Zod, zod-to-json-schema

KEY FEATURES

• Resume PDF upload & AI-based text extraction

• AI-generated match score (0–100) against job description

• Personalized technical interview questions with answers

• Behavioral interview questions with intent explanations

• Skill gap analysis with severity levels (low / medium / high)

• Day-wise interview preparation plan

• ATS-friendly resume PDF generation via Puppeteer

• JWT authentication with cookie-based sessions

• Token blacklist for secure logout

• View & revisit all previous interview reports

• Protected routes on frontend

• CORS-configured REST API

HOW IT WORKS

1. Register / Login with your account

2. Upload your resume PDF + paste the job description

3. AI analyzes your profile and generates a full report

4. Review questions, skill gaps, and preparation plan

5. Download an AI-tailored resume PDF for that specific job

REQUIREMENTS TO RUN

• Node.js 20+, MongoDB (local or Atlas)

• Google GenAI API key (free tier available)

• .env file with MONGO_URI, JWT_SECRET, GOOGLE_GENAI_API_KEY