AI SaaS Resume Builder

AI Resume Generation – Integrated OpenAI (GPT-OSS-120b) to generate, rephrase, and tailor resume sections based on job descriptions.

ATS Optimization & Scoring – Extracts keywords, calculates match scores, highlights missing skills, and provides AI-driven recommendations.

Authentication with OAuth2 + JWT –

Implemented Passport.js (Google Strategy) for OAuth2 login

Combined with JWT to refresh & access tokens for secure sessions

Access token → Expires in 3 hours

Refresh token → Stored securely in cookies (3 days)

Axios interceptors handle auto-renewal & retry failed requests seamlessly

Login & Signup Flows –

Built with RTK Query + custom hooks to manage auth, resume data, and user sessions consistently.

Dependency Injection, OOP & Design Patterns –

Structured the backend with Dependency Injection and Object-Oriented Programming to ensure scalability, modularity, and maintainability.

Resume Parsing –

Used Mammoth and pdf-parse to extract and structure text from DOCX/PDF resumes.

PDF Export –

Leveraged Puppeteer with headless Chromium to convert dynamic HTML/CSS resume templates directly into parsable, ATS-friendly PDFs (not just images).

File Uploads & Storage –

Implemented with Multer + Cloudinary API for secure and scalable file handling.

Global State & Server Data Management –

Redux Toolkit for global state management

TanStack Query for caching, server-state sync, and background updates for fetching & mutating data.

Form Validation –

Enforced robust validation on signup with Zod.

Frontend Performance –

Optimized with lazy loading, memoization, and custom hooks.

Modern UI & Animations & Responsive Design –

Built with Tailwind CSS + Shadcn and smooth Framer Motion animations.

Secure Password Hashing – Used bcrypt to hash user credentials, ensuring robust backend security and safe authentication then stored in DB.

This project brought together AI, secure authentication flows, caching, parsing, and scalable architecture — all in one product that helps job seekers optimize their resumes.