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Home Careers Discover openings Senior Automation QA Engineer

Senior Automation QA Engineer

Lisbon, Portugal

We are looking for a Senior Automation Quality Engineer with strong Java skills and experience in Big Data analytics.

The ideal candidate should have solid experience in test automation or quality engineering, strong database querying skills, and hands-on knowledge of Spark SQL, including aggregates.

Essential functions

  • Design, develop, and maintain robust automated test solutions, actively writing, reviewing, and debugging high-quality code (Java/Scala and UI testing).

  • Validate complex data processing, API responses, and database migrations using SQL, Spark SQL (aggregations), and big data workflows (Hadoop, Airflow).

  • Integrate automated test suites into continuous integration pipelines to ensure immediate and reliable regression testing of data workflows.

  • Verify data pipeline efficiency and scalability under heavy loads, ensuring Spark jobs process large-scale datasets optimally without bottlenecks.

  • Partner with stakeholders, product, and engineering teams to clarify requirements, map out edge cases, and align on technical solutions.

Qualifications

  • Strong Java development background (or basic Scala knowledge combined with solid Java experience).

  • Significant experience in Quality Assurance / Test Engineering.

  • Strong SQL skills and experience working with databases

  • Good understanding of Spark SQL, including aggregations and data validation

  • Theoretical knowledge of the Hadoop ecosystem

  • Theoretical understanding of Apache Spark and Apache Airflow.

  • Availability to join evening calls (till 20:00 Spain time)

Would be a plus

  • Practical experience with the Hadoop technology stack.

  • Experience with database migration projects and API response validation.

  • Hands-on experience with Apache Airflow and Apache Spark.

  • UI testing experience

We offer

  • Opportunity to work on bleeding-edge projects

  • Work with a highly motivated and dedicated team

  • Competitive salary

  • Flexible schedule

  • Professional development opportunities

About us

Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.

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