Jobs → Data & Analytics → Data Tester

About the Role We are looking for a Data Tester to join our team at Nimbus Technology., JSC. This role focuses on testing data pipelines, validating data integrity, and ensuring data quality across various systems. Key Responsibilities • Plan and execute ETL/ELT data pipeline testing across data warehouse and data lake systems • Perform data migration testing and validate data integrity to prevent data loss and duplication • Test BI reports and dashboards using Power BI, Tableau, and Metabase • Validate data quality, detect data anomalies, and identify data discrepancies • Analyze data mapping, business logic, and design test plans and detailed test cases • Generate test/mock data for complex business scenarios • Collaborate with data engineers, data analysts, business analysts, and developers to report bugs and perform root cause analysis Requirements • 3+ years of experience in Testing/QA, specializing in data testing, backend testing, and database testing • Strong SQL skills including JOINs, sub-queries, CTEs, and window functions • Experience with Oracle, SQL Server, PostgreSQL, and MySQL • Solid understanding of data warehouse, data lake, data modeling, star schema, snowflake schema, and ETL/ELT • Strong analytical, logical thinking, and attention to detail • Experience in 1–2 data migration projects or data reconciliation using BI tools • Banking/finance domain experience is a plus