ETL Tester

Job Description
Must Have Technical/Functional Skills
Primary Skill: ETL testing
Secondary: ETL Testing, Autosys, SQL, Shell Scripting, Exposure to IDMC/Informatica
Experience: Minimum 10 years

Roles & Responsibilities
• Analyze data mapping documents and business requirements to design comprehensive test plans and cases.
• Perform source-to-target data reconciliation, check data loading, and ensure transformation rules are applied correctly.
• Write complex SQL scripts for validation (count, data completeness, data consistency, data truncation).
• Identify, log, and track data defects using tools like JIRA or Client ALM or Octane.
• Automate test scripts and validate data volume, performance, and scalability.
• Expert-level knowledge of SQL for data analysis.
• Experience with tools such as Informatica and IDMC.
• Understanding of data warehouse concepts and architectures (e.g., star/snowflake schema).
• Familiarity with Hadoop or Spark is often preferred.
• Validate HiveQL, HDFS file structures, and data processing within the Hadoop cluster.
• Strong analytical and troubleshooting skills.
• Excellent communication for collaborating with developers and stakeholders.
• Knowledge in Metadata dependent ETL process and batch/job framework
Tools & Skills:
IDMC, Informatica Power center, Hive, Kafka Knowledge
SQL, Oracle, PL/SQL
Domain: Banking knowledge, Payments knowledge preferred.
Concept: Data Warehousing, Data Transformation, ETL/ELT, Data Quality.