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Istvan Hajnal

Insights Director, Audience Measurement @ Ipsos Netherlands/Global
Flemish Brabant, Belgium

Experienced Insights Director with a strong background in audience measurement, data science, and statistical modeling. Proven track record in leading teams, enhancing data workflows, and driving analytics initiatives across various sectors.

Top roles

Data Analyst> 10 years

Back-end

SQL
Python
R / Matlab / SPSS

ETL Datawarehouse

DataStage

Miscellaneous

Machine Learning

Business Intelligence

SAS
Language
Native Dutch
Dutch
Native
English
Fluent
French
Good
German
Average
Hungarian
Average
Work experience
Since 2010
Insights Director, Audience Measurement @ Ipsos Netherlands/Global
01 December 2022 -

Lead the Audience Measurement Data and Data Science team at Ipsos Netherlands (80%). Contribute to Ipsos Global Audience Measurement initiatives (20%). Established a team of data and data science specialists to enhance Audience Measurement studies in the Netherlands.

Insights Director, Marketing & Data Sciences @ GfK Belgium
01 September 2015 - 30 November 2022

Led the Marketing & Data Sciences team at GfK Belgium. Managed the consumer goods modeling team (Advanced Business Solutions) from 2016 to 2018.

Data Scientist & Consultant @ Hajnalytics
01 January 2013 - 30 September 2015

Provided consultancy in data analysis, big data, statistics, and survey methodology. Executed statistical modeling for election data and HR analytics.

Scientific Advisor @ iNostix
01 January 2013 - 31 December 2014

Member of the scientific advisory board for iNostix, specializing in HR analytics.

R&D Director @ iVOX
01 May 2011 - 31 December 2012

Managed R&D for iVOX, an online research company operating in Belgium, Ukraine, and France.

VP, Global Statistics Training COE @ The Nielsen Company
01 May 2010 - 28 February 2011

Led global statistics training initiatives across Nielsen’s business units.

Education experience
Since 1985
Social Sciences @ University of Leuven
01 January 1997 - 01 January 2001

PhD in Social Sciences, Dissertation: Cluster Analysis and Mixture Models.

Advanced Quantitative Analysis @ Catholic University of Brussels
01 January 1992 - 01 January 1993

Master’s in Advanced Quantitative Analysis.

Computer Science @ University of Leuven
01 January 1989 - 01 January 1993

Master’s in Computer Science.

Sociology @ University of Leuven
01 January 1985 - 01 January 1989

Master’s in Sociology (Cum Laude).

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