JobTrackerPro is a robust, enterprise-grade job application tracker designed to streamline the chaotic job hunt process.

I designed this solution to move beyond simple CRUD operations, focusing on **Robust System Design, Atomic Data Integrity, and Cloud-Native Scalability.

✨ Key Engineering Highlights:

• 🔐 Hybrid Security Architecture: Implements a custom authentication system supporting both OAuth2 (Google & GitHub) and standard JWT-based local login, allowing seamless account merging and recovery.

• 📧 Async Email System: Built a non-blocking password reset flow using @Async events and HTML templates to ensure fast API response times while sending transactional emails via Brevo (SMTP).

• ☁️ Cloud Native Storage: Integrates directly with Cloudflare R2 (S3-compatible) via the AWS SDK to handle user avatar storage and social image syncing efficiently, keeping the database lightweight.

• ⚡ Multi-threaded Analytics: Leverages Java CompletableFuture to calculate dashboard statistics in parallel threads, ensuring instant response times even with large datasets.

• 🛡️ Resilient Error Handling: Features a Global Exception Handler that standardizes all system errors (DB, Auth, File Uploads) into clean JSON responses for the frontend.

🛠️ The Tech Stack:

• Language: Java 21

• Framework: Spring Boot 3.2, Spring Mail (SMTP)

• Frontend: Angular 17 (Signals), TailwindCSS, D3.js

• Security: Spring Security 6, OAuth2 Client, JJWT

• Database: PostgreSQL (Production) / MySQL

• Storage: Cloudflare R2 (AWS SDK v2)

• DevOps: Docker, Google Cloud Run, GitHub Actions

💻 Source Code
This project is split into two repositories:

• 🎨 Frontend (Angular): https://github.com/thughari/JobTrackerPro-UI

• ⚙️ Backend (Spring Boot): https://github.com/thughari/JobTrackerPro

This project is Open Source (MIT). Feel free to explore the code to see how modern Spring Boot patterns are implemented in a production environment.