Senior Data Engineer

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Description

We are looking for a Senior Data Engineer with a Platform focus to take a leading role in the architecture and evolution of our internal Data Platform. You'll operate as a domain expert — designing scalable open-source platform infrastructure, defining standards adopted across the team, and mentoring engineers around you. This is a senior individual contributor role with real technical influence: you'll produce Architecture Decision Records, drive reliability initiatives, and shape the platform roadmap. At the same time, you'll stay close to the data engineering craft — contributing to data pipeline design, governance standards, data quality practices, and the broader data infrastructure that analysts and scientists depend on every day. This is a fully in-office role based in Kraków Responsibilities Platform Architecture & Infrastructure Design scalable, resilient platform architectures using open-source technologies Define IaC, Kubernetes, and Docker standards adopted across the platform team Architect and deliver platform microservices with well-defined interfaces Lead evaluation and adoption of open-source query engines and table formats Define strategies for compute and storage Design observability frameworks: metrics, tracing, and logging standards Data Engineering & Governance Contribute to the design and implementation of data lakes, data warehouses, and ETL/ELT pipelines Develop and maintain standards for data modelling Implement standards for optimizing data pipeline

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