Professional experience

Tasks: 

  • Support with planning/forecasting activities
  • Automation of Excel applications and processes 

Technologies: Excel, VBA, QlikView 

Tasks:

  • Big data proof-of-concept development
  • Python programming (web crawling, data preparation and analysis)
  • ETL workflow creation and maintenance
  • Administration of a NoSQL database
  • Documentation creation and maintenance 

Technologies: Apache Hadoop, Spark, Python, Apache NiFi, NoSQL, Apache Cassandra, Confluence, Git 

Tasks:

  • Creation and maintenance of ETL workflows 
  • Data analysis and management in database systems 
  • Data preparation and visualization using Python 
  • Creation and maintenance of documentation in Confluence 

 Technologies: Talend Open Studio, MySQL, Python, Confluence, Jira, SQL

Results: 

  • Optimized the existing Valuation-Tool with performance boost 
  • Successfully managed implementation of 2 SaaS products from third-party providers, from requirements analysis to rollout 
  • Formalized and standardized business processes with BPMN schema for further development of automation software 
  • Laid the foundation for digital capture of historical data to the database 
  • Developed command-line, desktop, and web applications using Python 
  • Designed a prototype for business process automation using Power Automate and SharePoint 

Technologies: BPMN 2.0, UML, Python, VBA, Power Automate, SharePoint 

Results:

  • Developed report for conveying salesmen incentives using Power BI
  • Provided basis for decision-making with ad hoc reporting
  • Provided recommendations for actions based on insights from data analysis with Python and R
  • Developed a prototype for business process automation using Power Automate
  • Optimized the existing data structure with performance boost 

Technologies: R, Power BI, Excel, Power Automate, Salesforce 

Results:

  • developed MVP of LLM-application with OpenAI and Ollama
  • LLM-application with using RAG, Fine-Tuning, Agent development
  • Co-developed team portal in SharePoint

Technologies: Python (Langchain, LangGraph), Ollama, SharePoint