EXL Service Data Engineer Interview Questions
The questions to prepare for a EXL Service Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Return each department's fourth-highest distinct salary, handling ties and excluding departments without four salary levels.
EXL ServiceConvert monthly service-volume rows into one row per service line and account with separate January, February, and March columns.
EXL ServiceImplement ROW_NUMBER, RANK, and DENSE_RANK behavior for a list of scores sorted in descending order.
EXL ServiceSort date intervals by ID and start date, then merge adjacent inclusive date ranges.
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Design an auditable customer history pipeline that preserves every address and city change without overwriting prior records.
EXL ServiceDesign a reliable pipeline from on-premises files through Azure and Snowflake into dbt transformations.
EXL ServiceDesign an S3-to-target-system ingestion pipeline with idempotent loads, failure recovery, validation, and consistent reruns.
EXL ServiceSecure PII in dbt models through classification, masking, least privilege, controlled access, and verifiable monitoring.
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