Patrick Schliesser

Data Engineer | PySpark, Microsoft Fabric & Azure Synapse

Berlin, Berlin, Germany

About

Experience

  • Business Intelligence Specialist at Vitra
    May 2023 - May 2026 · 3 yrs 1 mo

    Modernized the BI landscape by migrating MSSQL data pipelines to Microsoft Fabric and Azure Synapse, implementing scalable PySpark and SQL workflows for analytics and reporting. Built reusable datasets and Power BI semantic models enabling data-driven decisions across departments. Integrated REST APIs, reduced ETL licensing costs, and introduced machine learning models for forecasting and data trend analysis.

  • Data Engineer at Helios IT Service GmbH
    Feb 2021 - May 2023 · 2 yrs 4 mos

    Designed and built a Hadoop-based big data platform using Spark, HBase, and Airflow to centralize hospital data from 90+ clinical systems. Developed PySpark ELT pipelines for SAP data, automated testing and CI/CD, and optimized performance through parallelization. Delivered dashboards and data marts supporting data quality monitoring, governance, and large-scale analytics initiatives.

  • Master Thesis Student at Charité
    Oct 2019 - Oct 2020 · 1 yr 1 mo

    Working with pytorch to build a cycle GAN network for colour transformation of lung tissue

  • Bade und Saunameister at Vabali Spa Berlin
    Aug 2014 - Oct 2019 · 5 yrs 3 mos

  • Guest Scientist at MPI Golm
    Apr 2019 - Sep 2019 · 6 mos

    Building a Deep neural network for classification of RNA molecules with keras.