Senior Test Analyst; ETL, Data Warehousing & Tableau SW

Senior Test Analyst (ETL, Data Warehousing & Tableau) – Glasgow or Birmingham – 1 day a week in SW London – To £50K maximum

Help us to achieve our goal to be the global leader in total quality services. With your help we will achieve this by delivering Total Quality 360, a comprehensive suite of cutting-edge services which combine quality engineering, cyber security, conformance & interoperability and content quality to deliver end-to-end total quality solutions. Here at Resillion, our culture is based on an ‘if you see something, say something’ attitude where we take responsibility.

It’s one where we expect to adapt and embrace change as the company grows. It’s based on recognising the individual worth of every one of our employees and developing their skills to keep us all at the forefront of our industry. Above all, it’s a culture where we’re passionate about what we do, and we’re committed to the greater good of the company.

If you would like to be part of our journey, then this role may be the one for you.

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.

Mid‑Senior level

Full‑time

Information Technology

Software Development and IT Services and IT Consulting