Spark, Doris, Iceberg, Trino

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, PrestoDB, SQL federation, connector architecture, large-scale distributed systems, Data Processing, data source integration, Trino, distributed query engines