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Gert Harren

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Available to hire

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Language

German
Fluent
English
Advanced

Work Experience

Founder at Steinsaeulen.ch (IZIMPA GmbH) / GOVIMI
July 1, 2019 - July 1, 2019
Online sales of individual nutritional supplements; Marketing, design, software development, production, sales and legal aspects (WordPress, Google Analytics, WooCommerce, Google Ads, Facebook Ads).
DB-Consultant at Ifolor AG
April 1, 2018 - November 22, 2025
Consulting, design, development and testing of data flows, reports and data science, integrating data from various sources (Power BI, TimeXtender, BigEval, BigQuery, Azure).
Director eCommerce & IT at Hepart AG Kreuzlingen
June 1, 2017 - June 1, 2017
6 employees in 2 teams; Coordination and consolidation of 10 websites, 4 online shops and backoffice systems; IT-Architecture, system and process redesign, standardisation and outsourcing; Reporting to CEO (Magento, Wordpress, Woocommerce, APEX, Oracle, MS SQL Server).
Head of Analytics & Data Management (Interim) at Breuninger GmbH
August 1, 2016 - August 1, 2016
Strategy consulting and team lead analytics, reporting and datascience; 3 employees & 3 student assistants; Reporting to Executive Director (QlikView).
Founder at IZIMPA GmbH
November 1, 2015 - November 22, 2025
Founding IZIMPA GmbH.
Head of BI & Data Management at HolidayCheck AG
June 1, 2015 - June 1, 2015
Leading BI & Data Management department; 10 employees & 15 student assistants, 2 teams in Switzerland and Poland; Leading, planning and coordinating group-wide projects and processes like recommendation engines, email marketing, automatisation of master- and transaction-data-processes; Involvement in operative daily business; Reporting to CEO & CTO (QlikView, MS SQL Server, MySQL, MS SSIS, KNIME).
Teamlead Senior Data Analyst – Product Management at HolidayCheck AG
May 1, 2012 - May 1, 2012
Staffing and developing Team Data; DWH, reporting, data-mining-processes.
Marketing Manager Customer Insights at HolidayCheck AG
March 1, 2011 - March 1, 2011
Marketing knowledge building and strategic use of customer data; implementation data warehouse, data-mining.
Privacy-compliant Marketing Data Warehouse at Teambank Austria
September 1, 2010 - September 1, 2010
Conception and implementation of a privacy-compliant marketing data warehouse (Oracle, PL/SQL).
Dialogmarketing Database Management at TeamBank AG Nürnberg
September 1, 2010 - September 1, 2010
Setting-up and developing database marketing, advertising effectiveness controlling and address management.
Project Lead Database Marketing at Quelle GmbH
February 1, 2009 - February 1, 2009
Datamining; Development of scorecards, evaluations and analyses; Implementing and maintaining reports; Data warehouse management.
Consultant, Database Marketing Management & Services at Quelle GmbH
February 1, 2009 - February 1, 2009
Databasing Marketing Management & Services; Datamining; Development of scorecards, evaluations and analyses; Designing, implementing and maintaining reports; Data warehouse (ETL and data quality) (Oracle, SAS).
Student assistant at Institut für Marketing Münster
June 1, 2005 - June 1, 2005
Support in marketing research; DWH and data-related tasks.
IT Soldier at Military Service
June 1, 2000 - June 1, 2000
Basic IT training during mandatory service.

Education

Diplom Wirtschaftsinformatik (Information Systems) at Westfälische Wilhelms-Universität Münster
October 1, 2000 - October 1, 2006
Abitur at Kopernikus-Gymnasium Rheine
August 1, 1990 - July 1, 1999
14th Chinese Business Program at Ocean University of China, Qingdao
March 1, 2004 - June 1, 2004
Basic military service – IT-soldier at Military
October 1, 1999 - June 1, 2000
Certified Scrum Product Owner – agile product development at Tomorrow Focus AG
August 1, 2012 - December 1, 2012
3x3 leadership training at Tomorrow Focus AG
June 1, 2012 - December 1, 2012
Management Learning Program 4 at Primondo
September 1, 2008 - March 1, 2009

Qualifications

Change Management – Seminar
July 1, 2013 - November 22, 2025
Change Management – Seminar
July 1, 2013 - November 22, 2025
Certified Scrum Product Owner – agile product development
August 1, 2012 - December 1, 2012
3x3 leadership training
June 1, 2012 - December 1, 2012
Management Learning Program
September 1, 2008 - March 1, 2009

Industry Experience

Software & Internet, Professional Services, Retail