Quality Check Analyst (SQL + Python)

Job Description: Data Quality Analyst / Quality Check Analyst (SQL + Python)

Position: Data Quality Analyst / Quality Check Analyst
Experience: 1–4 years
Location:Bangalore
Department: Data / Analytics / Engineering

Job Summary:

We are looking for a Data Quality Analyst responsible for ensuring accuracy, consistency, and reliability of data within SQL databases. The candidate should have strong experience in data cleaning, validation, standardization, and automation using SQL and Python scripts.

Key Responsibilities:

• Identify and remove duplicate records in SQL databases.
• Detect and correct inconsistent, missing, or mixed-format data.
• Standardize data fields (e.g., dates, phone numbers, addresses, names).
• Write and optimize SQL queries, stored procedures, and scripts for data validation and correction.
• Automate data quality checks using Python (pandas, SQLAlchemy, etc.).
• Perform data audits and reconciliation to maintain data accuracy.
• Collaborate with data engineers and analysts to improve data pipelines.
• Create data quality reports and dashboards.
• Maintain documentation for data cleaning and quality standards.

Required Skills:

• Strong SQL knowledge (DDL, DML, JOINs, CTEs, Window Functions).
• Hands-on experience in data cleaning, deduplication, and transformation.
• Proficiency in Python (pandas, numpy, SQLAlchemy) for data quality automation.
• Experience with ETL or data validation scripts.
• Familiarity with data profiling and quality metrics.
• Good understanding of relational databases (MySQL, PostgreSQL, MS SQL Server).
• Strong analytical and problem-solving skills.
• Attention to detail and documentation skills.

Preferred Skills:

• Experience with data pipelines / Airflow / Power BI / Excel validation tools.
• Familiarity with data warehousing concepts.
• Understanding of data governance and data accuracy KPIs.

Job Type: Full-time

Pay: ₹200,000.00 - ₹500,000.00 per year