Senior Data Tester

Kellton

5 - 10 years

15 - 22 Lacs

hyderabad gurugram

Posted:1 day ago| Platform:

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Skills Required

big data testing python testing dwh testing aws etl testing data warehouse etl testing data testing pytest spark python sql

Work Mode

Hybrid

Job Type

Full Time

Job Description

Key Responsibilities

Design, develop, and execute data validation test plans and test cases for data pipelines, ETL processes, and data-driven applications.
Build and maintain automated data quality checks and regression test suites using Python.
Identify, document, and track data issues through to resolution.
Validate data transformations, aggregations, and reporting outputs against source data and business rules.
Collaborate with data engineers, analysts, and product managers to define effective test strategies and clear acceptance criteria.
Monitor, validate, and troubleshoot data pipelines deployed on AWS cloud infrastructure.
Analyze large datasets to detect anomalies and ensure data integrity.
Continuously improve QA processes, tools, and best practices for data-centric testing.

Required Skills & Qualifications

Minimum 5 years of experience in QA/testing, with a focus on data
validation and data-centric testing.
Strong knowledge of testing methodologies, defect tracking, and test case management tools.
Proficiency in Python, with experience automating test cases and developing validation scripts.
Hands-on experience with AWS services such as S3, EMR, SQS, Athena, etc.
Solid understanding of SQL and ability to write and optimize queries for data validation.
Excellent analytical and problem-solving skills, with keen attention to detail.
Strong communication skills and ability to thrive in a collaborative, cross- functional team environment.

Preferred Skills (Good-to-Have)

• Experience with big data tools: PySpark, BigQuery, etc.

• Familiarity with distributed data processing frameworks and architectures.

• Knowledge of data analysis libraries such as Pandas, NumPy, etc.

• Exposure to CI/CD pipelines and QA automation frameworks.

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