George Czelusniak!Open to opportunitiesI'm aData EngineerETL/ELT pipelines, analytical models, and reliable data products across enterprise and marketplace environments.
Data Engineer · ETL/ELT and analytics
Data Engineer with hands-on experience developing, maintaining, and troubleshooting ETL/ELT pipelines, data transformations, and analytical models across enterprise and marketplace environments. I currently work on CSkinStore's data layer, maintaining marketplace ingestion and price snapshot pipelines while modeling pricing, transaction, and inventory data with Snowflake and dbt.
Previously at ExxonMobil, I contributed to supply chain and logistics initiatives, including a freight cost optimization program targeting $16 million in annual savings. My work includes orchestration, dimensional modeling, automated testing, data quality, dbt job monitoring, REST and JSON integrations, business-rule validation, and collaboration with technical and business stakeholders.
End-to-end analytics platform built on the GroupLens MovieLens datasets, covering ingestion, warehousing, transformation, orchestration, and business intelligence.
OngoingOngoing hands-on program focused on production data engineering. Completed modules through Analytics Engineering using project-based environments.
Member of the Industrial Engineering Junior Enterprise at university, participating in consulting projects and organizational initiatives.
Member of Rotaract for 5 years — an international organization linked to Rotary that promotes youth leadership, professional development, and social impact projects.
