Senior ETL Quality Assurance Specialist

2 days ago

Bengaluru, Karnataka, India beBeeData Full time ₹ 8,00,000 - ₹ 10,00,000
ETL Tester

We are seeking a seasoned ETL professional to join our team as an ETL Tester. As an ETL Tester, you will be responsible for ensuring data accuracy, integrity, and completeness throughout the Extract Transform Load lifecycle.

Key Responsibilities:

  • Design, document, and execute detailed test plans, test cases, and test scripts covering all ETL stages (extract, transform, load)
  • Validate data extraction by verifying row counts, formats, nulls, duplicates, and referential integrity between source and staging
  • Ensure transformation logic is accuratebusiness calculations, mappings, cleansing, thresholds, surrogate key derivations
  • Confirm data loads into target systems correctly : record counts, key fields, historical loads, and fact/dimension integrity
  • Identify root causes of data discrepancies, log defects in tools like Jira or HP ALM, monitor fixes and regressions
  • Analyze and report on data quality issuestechnical and business-leveland recommend remediation strategies
  • Automate repetitive ETL tests (e.g., record counts, transformation validations, load validations) using SQL, shell scripts, Python, frameworks ? Great Expectations, NBi, etc.
  • Perform regression and performance testing of ETL jobs post-deployment
  • Work within agile teams alongside ETL developers, data architects, BI/business analysts to align on source-to-target mappings and ETL logic
  • Maintain clear communicationpresent test results, discuss defects, and collaborate on improvement initiatives

Requirements:

  • Bachelors degree in Computer Science, Information Systems, or equivalent
  • Typically 2+ years of experience (or 3+ for mid-level roles) in ETL testing, data validation, or data warehousing
  • SQL expertise : hands-on experience writing queries for counts, joins, MINUS/EXCEPT checks for reconciliation
  • Familiarity with ETL tools (Informatica, Talend, SSIS, DataStage, etc.) and frameworks
  • Basic scripting skills (Shell, Python, PowerShell) for automation
  • Exposure to data warehousing conceptsstar schemas, fact/dimension tables, CDC, data modeling
  • Experience with test management tools (Jira, HP ALM, TestRail)

Preferred Skills:

  • Automated CI/CD pipeline experience (e.g. Jenkins, Git).
  • Knowledge of big data ecosystems (Hadoop, Spark, Kafka).
  • Experience with modern data quality frameworks : Great Expectations, Soda, DBT

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