Martin   Tretter

2015 - heute
Senior Consultant
GP+S, Gerlach, Porst + Steiner GmbH

2003 - heute
INTERIM MANAGER / CONSULTANT
Interim Management & Consulting

2019 - 2019
Consultant - Power BI im Produktmanagement (Mobile)
1&1

2018 - 2018
Interim Manager (Customer Value Management, Business Controlling)
1&1

2018 - 2018
Interim Manager (Financial & Business Controlling Access Mobile)
1&1

2017 - 2018
Business Consultant (Planning, Analyse, Reporting)
Unitymedia

2016 - 2017
Consultant / Projektleiter (Professional Services)
HTSG

2015 - 2016
Business Consultant (Performance Management Operations)
1&1 Internet AG

2014 - 2014
Interim Manager, Projekt- & Kooperationsmanagement
RheinEnergie AG

2012 - 2013
Consultant, Interim Projekt Manager (Projekt Calculation & Finance)
nkt cables

2012 - 2012
Consultant (Sales & Marketing Performance Management)
Kabel Deutschland

2011 - 2012
Interim Projektleiter
RheinEnergie AG

2011 - 2012
Consultant (Projekt Controlling & Reporting)
REpower Systems SE, Senvion SE

2011 - 2011
Consultant
Tellus Solutions, Inc.

2008 - 2011
Interim Manager / Consultant (Product Controlling)
1&1 Internet AG

2010 - 2010
Consultant (Sales Prozess Mngmt, CRM, Sales Controlling)
REpower AG (Senvion)

2007 - 2008
Consultant (Sales Controlling, BI)
T-Mobile Deutschland

2007 - 2007
Interim Director International Tourism & Real Estate Project
GATO AG

2006 - 2007
Interim Managing Sales Director Germany
eSearchVision GmbH / eSearchVision S.A.

2006 - 2006
Consultant / Interim Manager (Marketing, Sales)
DELL Deutschland GmbH

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