Multi-dimensional competency assessment for the Big Data Engineer role — Cognitive Aptitude (numerical & logical reasoning), Role Knowledge, Situational Judgement and a hands-on auto-graded Coding round. Proctored; produces a competency profile, not a single MCQ score. Skills assessed: Hadoop ecosystem proficiency, Spark programming, SQL and NoSQL database management, Data pipeline development (e.g., Apache Airflow), ETL process implementation, Data modeling for big data, Proficiency in Python or Scala, Cloud data services (e.g., AWS EMR, Google BigQuery).
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