Freelance Data Scientist
Schlagwörter
Skills
Python, Pandas, XGBoost, scikit-learn, Keras, facebook Prophet, Plotly Dash, PowerBI, Docker, Spark, git, Linux
Projekthistorie
01/2020
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bis jetzt
10/2017
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12/2019
Senior Data Scientist
Henkel AG & Co. KGaA
(>10.000 Mitarbeiter)
In-house Data Science consulting covering diverse parts of the Henkel value chain
- Built various machine learning applications (classification and time series forecasting, etc.) incl. tech stack selection, architecture, model training, and deployment
- Mentored junior data scientists in multiple projects incl. own contributions: marketing analytics based on IoT data, customer complaint analysis, production optimization, accounts receivable prediction, sales success prediction, epigenetics research, hair color prediction from sensor measurements
- Consulted and performed QA in multiple machine learning projects with external implementation partners - Contexts: source-to-pay, intercompany, EDI
- Participated in the definition of standard architectures for machine learning applications at Henkel in collaboration with the DevOps team
02/2016
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09/2017
Data Scientist and Data Engineer
AXA Konzern AG
Helped to establish Data Innovation Lab and implemented Data Science use cases
- Implemented Spark data preparation and pseudonymization solutions on Hadoop
- Collaborated in the specification and implementation of Kafka and Flume data streaming architectures
- Built statistical models for customer churn prediction
- Examined print data and identified opportunities for cost reduction
- Integrated external data scraped from the web
- Pioneered and supported the establishment of Python, Scala and R development environments within the company
- Gathered project management experience, leading the project initialization of a small IT infrastructure project (~500TEUR)
07/2011
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02/2016
Scientific Staff
RWTH Aachen University
Performed research on physical layer signal processing for wireless communications
Gained profound knowledge of:
Technologies: MATLAB, Python, Linux, git, LATEX
- Participated in 3 research projects and contributed to 8 applications for research grants, publishing research papers at top international conferences and journals
- Supervised students writing theses and working as student research assistants
- Further developed proficiency in public speaking and presentation techniques in 7 semesters of university teaching and at 4 international conferences
Gained profound knowledge of:
- Analysis of large datasets and distributed Monte Carlo simulations
- Statistical hypothesis tests, detection and estimation theory, signal processing
- Advanced mathematics: stochastics, linear algebra, convex optimization
Technologies: MATLAB, Python, Linux, git, LATEX
04/2006
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09/2010
Student Research Assistant
RWTH Aachen University
- Institute of Comm. Systems and Data Proc.: Implemented an algorithm for measuring harmonic distortion in acoustic signals (Technologies: MATLAB)
- IT Center: Implemented cluster-management methods for the university compute cluster (Technologies: Sun Grid Engine, Xen Hypervisor, Python, Linux)
- Institute for Networked Systems: Ported a virtual machine for sensor networks from TinyOS 1.x to TinyOS 2.x (Technologies: nesC - C dialect)
- Institute of Transport Science: Developed queuing systems simulation (Technologies: Borland Delphi)
10/2009
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03/2010
Intern
Global IP Solutions (now Google)
Converted a noise-cancellation algorithm for VoIP from floating-point to fixed point arithmetic - now included in Google Hangouts, Apple Facetime, WebRTC (Technologies: C, Python, Microsoft Visual Studio, Perforce)
Reisebereitschaft
Nur Remote verfügbar
