4Bell Technology

Staffing & Recruiting

Sr. Data QA Engineer(R-2214)

100,000.00-1,800,000.00/A

Any Degree

IT (Information Technology)

Full-time

Remote

12-Dec-2026

QA ETL Testing Database testing SQL Databricks Delta Lake Automation testing Python API Testing CICD

Job Description

Qualifications 
 ● Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field. 
 ● 5+ years of relevant QA/testing experience, preferably working with Data Engineering, Big Data, or data-intensive applications. 
 ● Strong hands-on experience in ETL/ELT testing, database testing, and data validation. 
 ● Advanced SQL skills, including complex joins, subqueries, CTEs, window functions, aggregations, and data reconciliation. 
 ● Practical experience testing Apache Spark/PySpark data processing workflows. 
 ● Hands-on experience with Databricks and Delta Lake. 
 ● Strong understanding of Big Data concepts, distributed data processing, data pipelines, and data architecture. 
 ● Experience validating Parquet, JSON, CSV, and other structured and semi-structured data formats. 
 ● Strong programming/scripting skills in Python for test automation and data validation. 
 ● Experience with API and integration testing. 
 ● Working knowledge of Linux/Unix environments and shell scripting. 
 ● Understanding of Data Lakes, Lakehouse architecture, Data Warehousing, and ETL/ELT pipelines. 
 ● Experience with Git, defect management tools, and CI/CD-based testing workflows. 
 ● Experience working in an Agile/Scrum environment. 
 ● Strong analytical, troubleshooting, and root-cause analysis skills. 
 ● Ability to work independently, take ownership, and collaborate effectively with cross-functional teams. 
 ● Excellent written and verbal communication skills in English.