Full-stack developer building scalable products with Java, Spring Boot, and Angular, actively adopting AI.

devto

codeforces

leetcode

productHunt

medium

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Hari Thatikonda  • Peerlist

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:<ul><li>🔐 Hybrid Security Architecture: Implements a custom authentication system supporting both OAuth2 (Google &amp; GitHub) and standard JWT-based local login, allowing seamless account merging and recovery.</li><li>📧 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).</li><li>☁️ 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.</li><li>⚡ Multi-threaded Analytics: Leverages Java CompletableFuture to calculate dashboard statistics in parallel threads, ensuring instant response times even with large datasets.</li><li>🛡️ Resilient Error Handling: Features a Global Exception Handler that standardizes all system errors (DB, Auth, File Uploads) into clean JSON responses for the frontend.</li></ul>🛠️ The Tech Stack:<ul><li>Language: Java 21</li><li>Framework: Spring Boot 3.2, Spring Mail (SMTP)</li><li>Frontend: Angular 17 (Signals), TailwindCSS, D3.js</li><li>Security: Spring Security 6, OAuth2 Client, JJWT</li><li>Database: PostgreSQL (Production) / MySQL</li><li>Storage: Cloudflare R2 (AWS SDK v2)</li><li>DevOps: Docker, Google Cloud Run, GitHub Actions</li></ul>💻 Source Code This project is split into two repositories:<ul><li>🎨 Frontend (Angular): <a target="_blank" rel="noopener noreferrer" class="break-all link-break text-gray-500 hover:underline" href="https://github.com/thughari/JobTrackerPro-UI">https://github.com/thughari/JobTrackerPro-UI</a></li><li>⚙️ Backend (Spring Boot): <a target="_blank" rel="noopener noreferrer" class="break-all link-break text-gray-500 hover:underline" href="https://github.com/thughari/JobTrackerPro">https://github.com/thughari/JobTrackerPro</a></li></ul>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.