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Data Quality Analyst

Data Quality Analyst

NexionPro ServicesPune, Maharashtra, India
15 days ago
Job description

Job Title : Data Quality Engineer

Experience : 4+ Years

Location : Pune

Job Summary :

We are seeking experienced ETL Testers who are ready to work as Data Quality Engineers (DQE) , possessing strong programming experience in Advanced SQL and Python (or Java). Candidates should have hands-on testing experience, especially in data validation , functional testing , and be comfortable working in CI / CD environments. Exposure to BDD frameworks (like Selenium, Cucumber) and modern software testing practices is expected.

Key Responsibilities :

  • Develop and execute complex SQL queries for data validation , data profiling , and test case automation .
  • Perform ETL testing on large-scale datasets to ensure data integrity across systems.
  • Use Python or Java to build automation scripts for data quality checks.
  • Write and maintain test scripts using BDD frameworks (Selenium, Cucumber) where applicable.
  • Collaborate with Data Engineers and Developers for continuous integration and deployment ( CI / CD ) pipeline validations.
  • Implement testing strategies for structured and unstructured data sources.
  • Contribute to the identification and resolution of data quality issues and anomalies.
  • Work with cross-functional teams to define test plans, data scenarios, and ensure full test coverage.
  • Participate in code reviews and optimize SQL queries for performance improvements.

Required Technical Skills :

Must Have :

  • Advanced SQL – strong proficiency in :
  • Window Functions (e.g., RANK, ROW_NUMBER, LEAD / LAG, PARTITION BY)
  • CTEs (Recursive and Multiple)
  • Subqueries (Scalar, Correlated, EXISTS / NOT EXISTS)
  • Analytical Functions (CUME_DIST, NTILE, PERCENT_RANK)
  • Full-text search , hierarchical queries , and query optimization
  • Programming Skills – Proficiency in Python or Java
  • Strong functional testing background (manual + automation)
  • Working knowledge of CI / CD pipelines

    • Good to Have :

  • Exposure to Selenium , Cucumber , or any BDD framework
  • Experience in working with ETL pipelines , data lakes , or big data systems
  • Knowledge of data governance or data profiling tools (e.g., Informatica DQ, Talend, etc.)

    • Soft Skills & Competencies :

  • Strong analytical and problem-solving skills
  • Ability to communicate technical concepts clearly and effectively
  • Self-driven and able to work independently as well as part of a distributed team
  • Quick learner with adaptability to new technologies and frameworks

    • Other Details :

  • Candidates should be open to working in a hybrid model with 3 days in office .
  • Immediate to 30-day joiners preferred.
  • Flexibility to coordinate with distributed teams across locations.
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    Data Quality Analyst • Pune, Maharashtra, India