HCLTech Data Engineer interview questions

2 Rounds of Technical interviews. Primarily focused on Spark, ETL and Data engineering. First Round was primarily focused on Hadoop, Hive and Spark questions which includes Architecture of Spark. 2nd Round was focused on PySpark Coding experience and questions around it. Scenario based Pyspark code writing and Spark optimizations.

Depending on the role, HCL may administer technical assessments or coding tests to evaluate your proficiency in specific areas. Practice coding exercises, algorithms, and technical concepts relevant to the role.