Senior Test Analyst; ETL, Data Warehousing & Tableau - Remote - SW

Job Description

Senior Test Analyst (ETL, Data Warehousing & Tableau) - Remote - 1 day a week SW London - To £46K maximum

** Due to background checks, all candidates must have 3 years UK Address History to be considered**

We are looking for a detail-oriented Senior
Test Analyst with strong experience in ETL processes, Data Warehousing, and Tableau testing
. The role involves validating data pipelines, ensuring data accuracy across warehouse environments, and testing business intelligence dashboards to guarantee reliable insights for stakeholders.

• Design and execute test plans for ETL workflows, data warehouses, and Tableau dashboards.
• Validate data transformations to ensure accuracy, completeness, and consistency across multiple sources.
• Perform functional, regression, and performance testing on ETL jobs and reporting systems.
• Test Tableau dashboards for data integrity, usability, and visualization accuracy.
• Collaborate with developers, data engineers, and business analysts to identify requirements and resolve defects.
• Document test cases, results, and defects in alignment with QA standards.
• Support automation of testing processes where applicable.
• Ensure compliance with data governance and quality standards.

• Hands-on experience in ETL testing (Google Cloud, Big Query and Databricks).
• Strong knowledge of Data Warehousing concepts (schemas, fact/dimension tables, OLAP, normalization).
• Experience testing Tableau dashboards including calculated fields, filters, and parameters.
• Proficiency in SQL for data validation, test queries, and troubleshooting.
• Understanding of QA methodologies and defect management tools (e.g., JIRA, HP ALM, Test Rail).
• Strong analytical and problem-solving skills with attention to detail.

• Exposure to cloud-based data warehouses (Google Big Query).
• Experience with test automation frameworks for ETL and BI testing.
• Knowledge of Agile/Scrum methodologies.
• Ability to communicate findings clearly to both technical and non-technical stakeholders.