At ALDI SÜD, I cut heavy Delta Lake merge runtimes by 83% using table clustering and AI-assisted metadata profiling. I also rolled out a data quality framework for reporting workspaces, enabling daily Jira-integrated tracking.
On ALDI SÜD's Enterprise Data Products project, I refactored PySpark ETL pipelines and reduced compute costs by about 80%. I integrated GitLab CI/CD with Databricks Workflows and built a reusable Lakeflow Jobs pipeline for data products.
Earlier, on Vodafone's Enterprise IoT project, I reduced database response times by about 99% through targeted indexing strategies. My MSc thesis benchmarked open-weight LLMs and cloud APIs for named entity recognition in news articles.
