Quality Assurance Engineer, Big Data

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Adform is seeking a mid-level QA Engineer to own quality across their Big Data reporting platform. The role involves designing, executing, and documenting test cases, preparing test data, verifying reporting and analytics outputs, and validating data consistency across distributed storage layers such as Hadoop, Vertica, and Kafka. The candidate will coordinate end-to-end test plans, contribute to automated test frameworks, and ensure compliance with GDPR and data privacy requirements. Required skills include 2-3 years of QA experience with data-heavy systems, strong SQL knowledge, familiarity with big data tools (Vertica, Hive, Hadoop, Spark, Kafka), Python scripting, and a curiosity for automation and AI in testing. The position is full-time and on-site in Vilnius, Lithuania. Benefits include a dynamic international environment, professional development, healthcare, additional vacation, pet-friendly office, and more.