Andrzej Neumann
Head of Data Engineering @Babbel
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WORK HISTORY
Head of Data Engineering @Babbel
Berlin, DE
Grew the data engineering team from 5 to 12, personally mentoring 5 engineers into senior and lead roles while maintaining an 85% team retention rate.Led company-wide data platform migration to Databricks and dbt, moving 81 pipelines and 370+ reports while reducing processing costs by (40%) and maintaining 99.6% platform uptime.Architected real-time MLOps platform powering ML-driven recommendations and content ranking, contributing to 9% increase in user engagement measured through A/B testing.Implemented federated data governance program adopted by 11 cross-functional teams, reducing critical data incidents by 20% through automated quality controls and standardized policies.Built internal GenAI chatbot that reduced support team response workload by 30%, handling routine inquiries and freeing support staff for complex issues.Reduced data platform carbon footprint from 58 to 29 metric tons CO2e annually by optimizing storage policies and compute resource allocation across cloud infrastructure.Developed company-wide data strategy that aligned 7 cross-functional teams on OKRs, reducing data access request time by 30% through clearer prioritization.
EDUCATION
Warsaw University of Technology
Master's degree, Computer Science
SKILLS
ABOUT ANDRZEJ NEUMANN
Technically-minded engineering leader with expertise in scalable systems, real-time data pipelines, and cloud technologies. Dedicated to empowering engineers and helping them grow. Built and led engineering teams that deliver. Driven by a desire to make a positive impact.
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