Our team

As seen in our story, we are unreasonably picky about our peers. This sentiment applies to our executives as well. Our management team consists of savvy entrepreneurs and industry experts, bringing years of experience to a young company. We all are dedicated to our strong culture and work tirelessly to help our team scale, grow, and succeed.


Walter Kiesinger | CEO Coresystems

Walter Kiesinger


Finance / Admin

Alexander Thomas | Coresystems

Alexander Thoma


Patrizia Münch | Coresystems

Patrizia Münch

Administrative Assistant

Patrizia Münch | Coresystems

Silvia Vieira

Finance Specialist


Michael Berkowsky | Coresystems

Michael Berkowsky

Head of Business Solutions CH

Coresystems | Matthias Butz

Matthias Butz

Head of Business Solutions DE

Sebastian Bierer | Coresystems

Sebastian Bierer

Solution Consultant

Maik Diessner | Coresystems AG

Maik Diessner

Solution Consultant

Markus Kobi | Coresystems

Markus Kobi

Project Manager

Robin Krietsch | Coresystems

Robin Krietsch

Solution Consultant

Angana Maity | Coresystems

Angana Maity

Integration Consultant

Libor Mego | Coresystems

Libor Mego

Solution Consultant

Osama Safi | Coresystems

Osama Safi

Project Manager

Marcel Möhlen | Coresystems

Marcel Möhlen

Project Manager

Fabian Zubler | Coresystems

Fabian Zubler

Solution Consultant

Simone Sutter | Coresystems

Simone Sutter

Solution Consultant

Pedro Magueija | Coresystems

Pedro Magueija

Software Engineer

Emilia Baumann | Coresystems

Emilia Baumann


This could be you!


Sonja Altschuh

Head of Development

Anders Olsson | Coresystems

Anders Olsson


Stavros Kontovas Coresystems

Stavros Kontovas


Marek Takac | Coresystems

Marek Takac


Mauro Lupo | Coresystems

Mauro Lupo


Human Resources

Coresystems AG | Renate Hauri

Renate Hauri

Head of HR

Chantal Kramer | Coresystems

Chantal Kramer-Grenacher

HR Business Partner

Hanna Bergner

HR Business Partner

Internal IT

Daniel Inderbinen | Coresystems

Daniel Inderbinen

Head of IT

Marek Giesen | Coresystems

Marek Giesen

IT System Administrator

Markus Rueegg | Coresystems

Markus Rüegg

IT System Administrator

Partner Management / Channel Sales

Fabienne Schuler | Coresystems

Fabienne Schuler

Head of Partnermanagement

Stefanie Huber | Coresystems

Stefanie Huber

Sales Support Specialist

Marielen Pasini | Coresystems

Marielen Pasini

Partner Manager

Raphael Hübner

Raphael Hübner

Partner Manager

Dominik Leuenberger

Dominik Leuenberger

Partner Manager

Bernhard Weiersmueller | Coresystems

Bernhard Weiersmüller

Partner Enablement Manager

Sales & Marketing

Kay Diederen

Account Manager

Sina Guler

Marketing Specialist


Simon Kaufmann | Coresystems

Simon Kaufman

Head of Support

Karin Ahrens | Coresystems

Karin Ahrens

Support Consultant ERP/FSM

Ron Almogi, Coresystems

Ron Almogi

Support Consultant ERP

Oleh Fabri | Coresystems

Oleh Fabri

Support Consultant ERP

Roger Grenacher | Coresystems

Roger Grenacher

Support Consultant ERP/FSM

Cyril Roth | Coresystems

Cyril Roth

Support Consultant FSM

Tuelin Sivri | Coresystems

Tülin Sivri

Support Consultant ERP

Andrej Uhlar | Coresystems

Andrej Uhlar

Support Consultant ERP

Karsten Amrein | Coresystems AG

Karsten Amrein

Support Consultant ERP/FSM

Alberto Torres

Alberto Torres

Support Consultant FSM

Sergio Escobar | Coresystems AG

Sergio Escobar

Support Consultant FSM

Coresystems AG | Jürgen Mann

Jürgen Mann

Support Consultant ERP

Board of Directors

Frédéric Chanson | Coresystems

Frédéric Chanson

Chairman of the Board of Directors

Frédéric Chanson is a lawyer by education with over 30 years experience in both listed and private equity investments.

Formerly a Director with Bank Julius Baer & Co. AG, he co-founded the investment boutique Firminvest AG in Zurich in 1995, where assets are managed on behalf of its international clientele. He is an anchor investor in Coresystems.

Manuel Grenacher

Member of the Board of Directors, Founder of Coresystems AG

Manuel Grenacher is a tech entrepreneur with a strong drive to achieve and a vision to transform the customer service experience using Crowd technology.

With a proven track record for vision and leadership, his achievements have been recognized by Gartner, CIO Magazine, the Swiss Economic Council and Ernst & Young’s Emerging Entrepreneur of the Year Awards.

Marcel Zutter

Member of the Board of Directors

Marcel Zutter is a seasoned business leader and entrepreneur with many years of international experience in Financial Services and Technology.

He was a Member of the Executive Board of a leading US bank before founding his own company. He invests in and supports companies in the ICT area and is a shareholder in Coresystems.