Steffen Müller

Principal Consulting Partner - Freelancing

Königstein im Taunus, Germany
Experience
Feb 2023 - Present
2 years 6 months
Frankfurt am Main, Germany

Principal Consulting Partner - Freelancing

Microfin

Advisory

Jan 2023 - Sep 2023
9 months
Berlin, Germany

Senior Security Advisor (vCISO) & Enterprise Security Architect (vTISO)

ING DiBa Holding Germany

Advisory

Aug 2022 - Dec 2022
5 months
Bonn, Germany

Senior Security Advisor & Security Architect

Deutsche Post / DHL

Advisory

Aug 2022 - Oct 2022
3 months
Cologne, Germany

Senior Security Advisor/Enterprise Security Architect for group-wide program Gothaer@Cloud

Gothaer Versicherungen

Interim

May 2021 - Jul 2022
1 year 3 months
Cologne, Germany

Senior Security Advisor/TISO Cloud Transformation

Gothaer Versicherungen

Advisory

Feb 2021 - Jul 2021
6 months
Hamburg, Germany

Senior Security Advisor & Security Architect PAM & PKI

Hamburg Commercial Bank

Advisory

Mar 2020 - Dec 2020
10 months
Frankfurt, Germany

Senior Security Advisor & Security Architect PKI

Kreditanstalt für Wiederaufbau (KfW)

Advisory

Dec 2019 - Mar 2020
4 months
Bonn, Germany

Senior Security Advisor & Security Architect

Deutsche Post / DHL

Advisory

Nov 2018 - Sep 2019
11 months
Ludwigshafen, Germany

Lead Security Architect PKI

BASF

Advisory

Aug 2018 - Oct 2018
3 months
Frankfurt, Germany

Consultant TPAM (Total Privileged Access Management)

Kreditanstalt für Wiederaufbau (KfW)

Advisory

Apr 2018 - Jun 2018
3 months

Senior Security Advisor & Security Architect

Deutsche Post / DHL

Advisory

May 2017 - Jan 2018
9 months
Bonn, Germany

Senior Security Architect & Advisor; Senior Security Advisor & Security Architect All-IP; Senior Security Advisor & Security

Deutsche Post / DHL

Advisory

May 2017 - May 2017
1 month
Offenbach, Germany

Senior Information Security Manager

Hessische Landesbank, HeLaBa

Advisory

Feb 2017 - May 2017
4 months
Bonn, Germany

Senior Security Advisor & Security Architect

Deutsche Post / DHL

Advisory

Nov 2016 - Dec 2016
2 months

Senior Security Advisor & Risk Manager

Deutsche Post / DHL

Advisory

Aug 2016 - Oct 2016
3 months
Germany

Senior Security Advisor & Risk Manager

Magenta Mannheim for CSL Behring

Advisory

Jan 2016 - Jan 2016
1 month
Eschborn, Germany

Senior Security Specialist & Advisor

British Telecom

Interim

May 2014 - Oct 2015
1 year 6 months
Eschborn, Germany

Senior Security Architect & Advisor

Deutsche Bank

Interim

Oct 2010 - Apr 2014
3 years 7 months
Frankfurt, Germany

Global MITSA TISO

Deutsche Bank

Interim

Jun 2010 - Oct 2010
5 months
Bonn, Germany

IS Management, Senior Consultant – Project Security Manager

Deutsche Telekom

Advisory

Feb 2010 - May 2010
4 months
Bonn, Germany

Senior Security Consultant – Regional Security Manager

Deutsche Telekom

Interim

Oct 2008 - Dec 2009
1 year 3 months
Frankfurt, Germany

Senior Security Consultant & IT Risk Advisor

European Central Bank - ECB

Interim

Mar 2007 - Sep 2008
1 year 7 months
Bonn, Germany

Senior Security Consultant & Consulting Auditor

Deutsche Post / DHL

Interim

Sep 2006 - Mar 2007
7 months
Eschborn, Germany

Senior Security Consultant (Governance) & Consulting Auditor

Deutsche Bank

Interim

May 2006 - Aug 2006
4 months
Walldorf, Germany

Senior Consultant – Project Security Manager

Intercomponentware - SAP

Advisory

Dec 2005 - Mar 2006
4 months
Wiesbaden, Germany

Senior Consultant – Project Security Manager

Hessian Center for Data Processing

Interim

Jun 2004 - Nov 2005
1 year 6 months
Darmstadt, Germany

Senior Consultant Networks & Security

Eumetsat

Advisory

May 2004 - May 2004
1 month
Zürich, Switzerland

Senior Consultant Networks & Security

Telekurs Financial

Advisory

Apr 2003 - Jan 2004
10 months
Frankfurt, Germany

Senior Consultant Networks & Security

Star Alliance

Advisory

May 2001 - Jan 2003
1 year 9 months
Wiesbaden, Germany

Technical Co-Project Manager

DBV-Winterthur Holding AG

Advisory

Jan 2000 - Mar 2001
1 year 3 months
Frankfurt am Main, Germany

Lead Consultant/System Integrator

Telecash

Advisory

Jun 1999 - Dec 1999
7 months
Wiesbaden, Germany

Lead Consultant/Technical Project Assistant

DBV-Winterthur Holding AG

Advisory

Summary

Steffen Müller has been deeply rooted in IT since 1980 and has worked since 1999 as a freelance information security officer (vCISO) for clients in heavily regulated industries. In the area of ISM (Information Security Management) and GRC (Governance, Risk & Compliance), he supports CISOs, CTOs, project or program managers as a professional point of contact and sparring partner. With his deep technical background, he also acts as a TISO (Technical Information Security Officer) or as a strategic advisor for the implementation support of security-relevant infrastructures in the role of Enterprise Security Architect. As a mediator between service providers, departments, and the client’s executive management, he plays a central interface role.

Industry focuses:

  • Heavily regulated environments such as:
  • Banks
  • Insurance companies
  • Telecommunications/ISPs
  • IT service providers
  • Logistics
  • Chemicals
  • Pharmaceuticals
  • Aviation

Expertise:

  • Strategic information security planning: developing and maintaining the security strategy and program in line with business goals.
  • Risk management: identifying, assessing, and prioritizing risks; developing risk mitigation strategies.
  • Compliance management: ensuring adherence to relevant laws, regulations, and standards (e.g. GDPR, NIS2, DORA).
  • Security assessments and audits: planning and conducting internal and external security audits.
  • Incident management: developing and implementing processes to detect, investigate, and respond to security incidents.
  • Awareness and training: launching training programs to increase security awareness among employees.
  • Advisory and leadership: acting as a consultant for management and leadership teams on all information security matters.
  • Technology monitoring: monitoring and evaluating security technologies and cybersecurity trends to continuously improve the security architecture.
  • Coaching junior information security professionals

Management style / working method:

  • Solution-oriented and cooperative approach
  • Reliability, openness, straightforwardness, commitment
  • Confident presence and strong presentation skills
Languages
German
Native
English
Advanced
Education
Aug 1989 - Aug 1992
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Technical Assistant Computer Science · Computer Science

Certifications & licenses

CCSP (Certified Cloud Security Professional)

ISC2

Prince2 Practitioner (Project Manager)

Axelos

CISA (Certified Information System Auditor)

ISACA

CISSP (Certified Information System Security Professional)

ISC2

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