> Markdown version of [/jobs/ext/1499404-python-etl-data-tester](https://www.wearedevelopers.com/jobs/ext/1499404-python-etl-data-tester). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Python ETL Data Tester - **Company:** Nityo Infotech Corporation - **Location:** Tempe, AZ, United States - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Airflow, Amazon Web Services, Business Logic, Automation of Tests, CA Workload Automation Ae, Microsoft Azure, Big Data, BigQuery, Databases, Data Validation, Information Engineering, Data Governance, Data Integrity, Extract Transform Load (ETL), Data Migration, Data Warehousing, IBM InfoSphere DataStage, Apache Hadoop, Apache Hive, Python (Programming Language), PostgreSQL, Microsoft SQL Server, MicroStrategy, Oracle (Applications), Power BI, Shell Script, SQL Databases, SQL Server Integration Services, Tableau (Software), Strategies of Testing, Google Cloud, Cloud Platform System, Azure Data Factory, Snowflake, Apache Spark, Ab Initio, Data Lineage, Qlikview, Star Schema, Apache Kafka, Data Delivery, Amazon Redshift, Databricks, Control M - **Published:** July 30, 2026 - **Apply:** https://www.dice.com/job-detail/99a6090e-f1ad-4b15-898e-feb05f7079a3 ## About the Role * Experience in Data/ETL Testing. Experience in Python-based ETL test automation. Experience in ETL Testing, Data Warehouse Testing, and Data Migration Testing. Develop automation solutions using Python/Shell scripting for ETL and data validation activities. Experience in SQL and database validation across Oracle, SQL Server, PostgreSQL, Snowflake, AWS Redshift, or BigQuery. Validate source-to-target mappings, transformation rules, data lineage, and business logic as per mapping documents. Perform data reconciliation, completeness checks, referential integrity, duplicate detection, and data quality validations. Experience in ETL tools such as Informatica, Ab Initio, ODI, SSIS, DataStage, Azure Data Factory, or Databricks. Strong understanding of Data Warehousing concepts including Facts, Dimensions, Star Schema, and SCD validations. Experience validating cloud-based data platforms on AWS, Azure, Databricks, Snowflake, or Google Cloud Platform. Hands-on experience with batch job validation, workflow monitoring, and scheduling tools such as Autosys, Control-M, or Airflow. Implement test strategies, prepare and execute test cases, analyze results, and coordinate defect resolution to ensure data quality. Collaborate with business, development, and data engineering teams to ensure accurate and reliable data delivery. Maintain detailed documentation of test scenarios, SQL validations, automation assets, and testing processes. Preferred Skill and Experience * Experience in BI Reporting validation using Power BI, Tableau, Qlik, or MicroStrategy. Experience in Big Data technologies such as Hadoop, Spark, Hive, and Kafka. Knowledge of AI-enabled Data Quality and Data Governance solutions. Banking, Capital Markets, Wealth Management, or Mortgage domain experience. ## Related Videos - [Enjoying SQL data pipelines with dbt](https://www.wearedevelopers.com/videos/823-enjoying-sql-data-pipelines-with-dbt) - [From Messy Queries to Scalable Systems - How Data Engineering actually works](https://www.wearedevelopers.com/videos/100203-from-messy-queries-to-scalable-systems-how-data-engineering-actually-works) - [Beyond Dashboards: Fixing Text-to-SQL with Semantic RAG](https://www.wearedevelopers.com/videos/2036-beyond-dashboards-fixing-text-to-sql-with-semantic-rag) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [AI Model Management Life Circles: ML Ops For Generative AI Models From Research to Deployment](https://www.wearedevelopers.com/videos/1152-ai-model-management-life-circles-ml-ops-for-generative-ai-models-from-research-to-deployment) - [REST, GraphQL, gRPC, and more: A comparison of modern API styles](https://www.wearedevelopers.com/videos/100247-rest-graphql-grpc-and-more-a-comparison-of-modern-api-styles) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Top Big Data Technologies That You Need to Know](https://www.wearedevelopers.com/magazine/108-top-big-data-technologies-that-you-need-to-know) - [Integration And E2E Testing: Are They Complementary or Interchangeable?](https://www.wearedevelopers.com/magazine/86-integration-and-e2e-testing-are-they-complementary-or-interchangeable) - [13 AI Tools for Developers](https://www.wearedevelopers.com/magazine/302-13-ai-tools-for-developers) - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)