With 10+ years of technical leadership, I specialize in bridging high-level System Design with rigorous, efficient code. I apply deep knowledge of Data Structures and Algorithms daily to solve real problems in mobile and backend development. My expertise spans the full stack — native Android, specialized areas like Android TV/OTT and Android Automotive, and backend services built with Java, Kotlin, and Node.js. I've packed everything I've learned into Mastering Data Structures & Algorithms in Java — a complete guide with 150+ practice problems, full Java implementations, Big-O analysis, and interview strategies for landing offers at top tech companies. Grab a copy below and start building the fundamentals that actually move the needle in interviews and on the job.