operational support , Query Optimization, Distributed Systems, Spark, Performance Tuning, Doris, Iceberg, Trino, Data Storage Formats

Java, Performance Tuning, Pyspark, Kafka, Sql, ELT, Query Optimization, Apache Airflow, Data Quality, Git, Data Governance, Python, Etl, Apache Iceberg, DevOps practices, data modeling techniques, data transformation frameworks, large-scale structured and unstructured datasets, Spark-based data processing, data partitioning, metadata

Query Optimization, Impala, Apache Hive, connector architecture, PrestoDB, SQL federation, large-scale data processing, Trino, distributed query engines