Learn Data Skills
Beta
Erik Hirschfeld

Erik Hirschfeld

Senior Data Scientist / Data Engineer

GfK | Frankfurt, Germany

Technologies

My Portfolio Highlights

My New Course

Introduction to Python

My New Track

Data Analyst

My New Course

Introduction to Python

Insights artist, transforming data into visually stunning masterpieces of knowledge.

My Work

Take a look at my latest work.

course

Introduction to R

course

Introduction to Python

course

Intermediate Python

course

Introduction to R

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

Courses

Introduction to Python
Introduction to R
Intermediate Python
Python Data Science Toolbox (Part 1)

My Work Experience

Where I've interned and worked during my career.

GfK | Jul 2014 - Present

Senior Data Scientist / Analytics Manager, Advanced Analytics

In my current role as Senior Specialist I'm working in the field of data science. Most of my work I'm programming in R. Main achievements: - Creation of a fully automated model for the evaluation of TV add campaign effectiveness on consumer panel data. - Establishing an automated model for marketing mix on consumer panel data with the the possibility of analyst interaction - Organistor and presenter in a regular monthly company internal training series with topics about data science and data analysis (e.g. R, Python, VBA,statistics, neural networks, etc...) - Data Science Training 2017
Show More

Nielsen | Sep 2012 - Jul 2014

Technical Specialist

Working on data analysis and development of marketing mix models on retail panel data. Most of the programming done in SAS. Development of an automated marketing mix model with the possibility of analyst interaction. Helping establish the new system within the company and train the analysts on how to use the system.

Nielsen | Jul 2010 - Sep 2012

Senior Developer

Mostly working on new models, improving existing models for the evaluation of marketing mix models using the SAS macro language and various SAS modules (SAS IML, SAS ETS, SAS OR). Development of a fully automated model for marketing mix.

Nielsen | Aug 2006 - Jul 2010

Developer

Worked on different client related projects and developed together with colleagues an approach for the evaluation of the long term effects of advertising. Most of the projects and programming done in SAS, VBA (Excel) and SQL. Also additional SAS modules were used like SAS OR and SAS IML, implementing models using Kalman Filters. Building of a simulator prototype for price and promotion effects on FMCG product sales in Excel and afterwards helping implementing the mathematics of the simulator in a globally used web based simulator tool.

Nielsen | Sep 2008 - Dec 2008

Developer (DTP)

During an internal program (development transfer program) within the Nielsen Company I was located for three month in the area of Chicago. During that time I was learning the data availability of Nielsen within the USA and I was implementing a model for long term effects.

Nielsen | Aug 2005 - Oct 2005

Internship (Marketing Research)

During an internship within Nielsen in the research group of Nielsen, I worked on different tasks, like the implementation of support tools with VBA that were used in the daily work in production, I did research on a store revenue model, but my main goal was to implement a model of consumer behaviour and the impact of TV advertising within the statistical software R.

Justus Liebig University Giessen | Oct 2003 - Jun 2005

Student Assistant

During part of my studies I was employed as student assistent. The areas I worked in wide range of courses for different target audiences, like Linear Algebra, Algebra, Stochastics, scientific basics of school mathematics. I corrected homework of students and held excercise courses.

My Education

Take a look at my formal education

Diplom (Master's degree), Mathematics, EconomicsJustus-Liebig-Universität Giessen | 2006

Powered by

  • Work
  • Courses
  • Experience
  • Education
  • Create Your Data Portfolio for Free