https://mohanreddy.is-a-good.dev/blog Technical articles and guides on Java, Distributed Systems, Android Architecture, Machine Learning, and Modern Web by Mohan Reddy. en-us Thu, 01 Oct 2026 00:00:00 GMT Thu, 01 Oct 2026 00:00:00 GMT https://mohanreddy.is-a-good.dev/blog/oracle-java-se-17-certification-guide https://mohanreddy.is-a-good.dev/blog/oracle-java-se-17-certification-guide Thu, 24 Sep 2026 00:00:00 GMT A complete preparation roadmap for the Oracle Certified Professional Java SE 17 Developer exam (1Z0-829): core syllabus breakdown, switch pattern matching, sealed classes, and concurrency tips. https://mohanreddy.is-a-good.dev/blog/scaling-univault-offline-first-architecture https://mohanreddy.is-a-good.dev/blog/scaling-univault-offline-first-architecture Mon, 28 Sep 2026 00:00:00 GMT A system design deep-dive into how we built UniVault's local-first sync pipeline using Room Database, Kotlin Coroutines, and Firebase Firestore to serve 50,000+ students during peak semester exams. https://mohanreddy.is-a-good.dev/blog/ethereum-fraud-detection-xgboost https://mohanreddy.is-a-good.dev/blog/ethereum-fraud-detection-xgboost Thu, 01 Oct 2026 00:00:00 GMT How we developed an automated fraud detection pipeline for Ethereum transactions using machine learning, addressing severe class imbalance with SMOTE and outperforming legacy tree ensembles. https://mohanreddy.is-a-good.dev/blog/react-state-management https://mohanreddy.is-a-good.dev/blog/react-state-management Thu, 02 Jul 2026 00:00:00 GMT Explore modern state management paradigms in React 18, including Zustand, Recoil, and Signals, comparing performance and developer experience.