Now

Current focus:

• DS and algorithm practice in Java
• Scala for data engineering fluency
• Spark and MapReduce foundations
• Data Mesh patterns for domain-owned data products
• Real-time Analytics patterns for event-driven decisions
• OLAP systems, especially Apache Druid and ClickHouse
• Senior system design interview preparation

Next frontier tracks:

• quantum computing
• space exploration systems
• simulation, telemetry, and scientific data platforms