Database & Systems Architecture Expert Journey: Started 20+ years ago building database applications without understanding their core mechanics. After encountering performance issues, race conditions, and data corruption, I committed to mastering database internals—understanding every query execution, transaction design, and atomic operation. Philosophy: Deep understanding of what happens "behind the scenes" in software systems is essential for building robust applications. Expertise: Database internals and optimization Backend system architecture Operating systems fundamentals Query execution planning Transaction management Performance troubleshooting Content Focus: In-depth technical posts covering backend systems, database mechanics, and OS internals for developers who want to understand the "why" behind the "how." Teaching Approach: Courses designed for developers who share a passion for understanding system internals rather than just surface-level implementation.