Data Engineer (Hadoop | Spark | SQL)Location: Warsaw, PolandExperienced Lead Data Engineer to design, develop, and optimize enterprise-scale data engineering solutions.Key Skills & Experience:Apache Hadoop & Apache SparkSQL & ETL/ELT Pipeline DevelopmentPython for Data EngineeringSplunkBig Data EcosystemData ModelingCI/CD & Source ControlNoSQL DatabasesAgile (Scrum/Kanban)Technical Leadership & Team Mentoring

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