ETL Tester

Hello All,

Greetings from Tesslogs,

We are looking for an experienced

ETL Tester

with strong expertise in SQL, AWS, and Snowflake. The ideal candidate should have solid experience in validating data pipelines, performing data quality checks, and ensuring end-to-end data accuracy across cloud-based ETL workflows.

Client : Infosys

Exp : 4+ years

Location : Bangalore, Chennai, Pune

Key Responsibilities

Perform

ETL testing , including data validation, data quality checks, transformation logic verification, and data reconciliation.

Write and execute

complex SQL queries

for validating large datasets.

Test ETL processes involving

AWS services

such as S3, Glue, Lambda, Redshift, and Step Functions.

Validate data pipelines and data models implemented in

Snowflake .

Collaborate with data engineers to understand ETL design, data mappings, and business rules.

Create and maintain test plans, test cases, and test scripts.

Identify defects, track issues, and ensure timely closure.

Conduct regression, functional, and integration testing for data workflows.

Ensure adherence to quality standards and best practices.

Required Skills

3–7 years of experience in

ETL / Data Warehouse Testing .

Strong hands-on experience with

SQL

(advanced joins, window functions, analytical queries).

Experience with

AWS cloud services

used in ETL workflows.

Hands-on experience with

Snowflake

(querying, schema validation, data loading).

Good understanding of data warehousing concepts, ETL workflows, and batch / real-time data processing.

Knowledge of testing tools, defect management tools, and version control.

Good to Have

Experience with Python or Shell scripting for automation.

Understanding of CI / CD pipelines.

Familiarity with BI tools (Power BI, Tableau, etc.).

Best Regards,

Gahana

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