Matthias Siller

Critic
DISC Type : C

Head of Information Security at REWE digital

Wiener Neudorf, Lower Austria, Austria

Overview

With over 27 years of IT experience, Matthias Siller is the IT Director Technology at REWE International AG, where he leads the technology cluster, including operations, architecture, and cloud platforms. He is also the Head of Information Security for REWE digital. He holds a Masters degree from the University of Vienna.

His dual leadership role, overseeing both broad IT technology and specialized information security for a major international retailer, is a unique aspect of his career.

Personality Overview

ROI Driven

Precise

Negotiator

They like to do things independently and don’t look for support from others.  They choose to analyze logically and value facts to emotions. Unless the value is proven by data, they are unlikely to value fancy features.

Topics They Care About

IT Transformation
He recently highlighted successfully driving the company's transformation forward in 2024 and is preparing for an equally intensive 2025.
Information Security
As the Head of Information Security for REWE digital, this is one of his primary responsibilities and core competencies.
Cloud Platforms
Manages cloud platforms as a central part of the Technology Cluster he oversees, focusing on delivering innovative and efficient solutions.

Media Appearances

Matthias has no verified media appearances

Work History

8-2025
Head of Information Security at REWE digital
10-2022
IT Director Technology at REWE International AG
5-2021 - 5-2022
Head of Cloud Services Alpine at T-Systems Austria
5-2021 - 5-2022
Head of Cloud Services Alpine at T-Systems Schweiz
5-2020 - 9-2022
CTO at T-Systems Austria

Education

2000 - 2008
Master from University of Vienna
1986 - 1994
AHS Matura from BG & BRG Ettenreichgasse, 1100 Vienna

More Information

Social Presence :

Prographics :

Exp : 26 Location : Wiener Neudorf, Lower Austria, Austria Job Level : Mid-senior Designation : Head of Information Security at REWE digital
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Insights For Selling To Matthias

During A Call Or A Meeting

DO's

  • If you can, show them industry reports or analyst comments instead of sharing anecdotal stories
  • Leverage facts and figures wherever possible; use percentages, numbers etc.
  • Use phrases like ‘expect X% improvement’, ‘data clearly shows’ etc.

DONT's

  • Make extra effort to not seem pushy or confrontational
  • Don’t rush them till they have clearly gotten all the necessary information
  • Avoid pushing them too much to involve other stakeholders unless it is critical

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Matthias is

  • Proven ROI, pricing and objective proof points are the factors that sway their decision.
  • Will you ever get a clear answer from Matthias

  • They are comfortable saying no if they are convinced that it is the correct decision.

Insights For Deal Planning

    How fast (or slow) will Matthias move?

  • Their decision-making is neither very fast nor very slow, they are somewhere in between.
  • Can Matthias take some risk or not?

  • They can take risks if their analysis shows that it would be worth it.

You And Matthias

Personality Compatibility


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