Steffen Müller
Principal Consulting Partner - freelancing
Experience
Principal Consulting Partner - freelancing
microfin
Senior Security Advisor (vCISO) & Enterprise Security Architect (vTISO)
ING DiBa Holding Germany
Senior Security Advisor & Security Architect
Deutsche Post / DHL
Senior Security Advisor/Enterprise Security Architect
Gothaer Versicherungen
Senior Security Advisor/TISO Cloud Transformation
Gothaer Versicherungen
Senior Security Advisor & Security Architect PAM & PKI
Hamburg Commercial Bank
Senior Security Advisor & Security Architect PKI
Kreditanstalt für Wiederaufbau (KfW)
Senior Security Advisor & Security Architect
Deutsche Post / DHL
Lead Security Architect PKI
BASF
Consultant TPAM (Total Privileged Access Management)
Kreditanstalt für Wiederaufbau (KfW)
Senior Security Advisor & Security Architect
Deutsche Post / DHL
Senior Security Architect & Advisor
Deutsche Post / DHL
Senior Security Advisor & Security Architect All-IP
Deutsche Post / DHL
Senior Security Advisor & Security Architect
Deutsche Post / DHL
Senior Information Security Manager
Hessische Landesbank, HeLaBa
Senior Security Advisor & Security Architect
Deutsche Post / DHL
Senior Security Advisor & Risk Manager
Deutsche Post / DHL
Senior Security Advisor & Risk Manager
Magenta Mannheim for CSL Behring
Senior Security Specialist & Advisor
British Telecom
Senior Security Architect & Advisor
Deutsche Bank
Global MITSA TISO
Deutsche Bank
IS Management, Senior Consultant – Project Security Manager
Deutsche Telekom
Senior Security Consultant – Regional Security Manager
Deutsche Telekom
Senior Security Consultant & IT Risk Advisor
European Central Bank (ECB)
Senior Security Consultant & Consulting Auditor
Deutsche Post / DHL
Senior Security Consultant (Governance) & Consulting Auditor
Deutsche Bank
Senior Consultant – Project Security Manager
Intercomponentware (SAP)
Senior Consultant – Project Security Manager
Hessian Central Office for Data Processing
Senior Network & Security Consultant
Eumetsat
Senior Network & Security Consultant
Telekurs Financial
Senior Consultant Networks & Security
Star Alliance
Technical Co-Project Manager
DBV-Winterthur Holding AG
Lead Consultant/System Integrator
Telecash
Lead Consultant/Technical Project Assistant
DBV-Winterthur Holding AG
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Banking and Finance (10 years), Transportation (3.5 years), Insurance (3.5 years), Telecommunication (2 years), Government and Administration (1.5 years), and Space Exploration (1.5 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (20.5 years), Strategy (3 years), Project Management (3 years), and Audit (2 years).
Summary
Steffen Müller has been deeply rooted in IT since 1980 and has been working as a freelance information security officer (vCISO) for clients in heavily regulated industries since 1999. In the field 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 contact for the implementation support of IT security-relevant infrastructures in the role of Enterprise Security Architect. As an intermediary between service providers, specialist departments and the customer’s management, he takes on a central interface function.
Skills
Banks
Insurance Companies
Telecommunications/isps
It Service Providers
Logistics
Chemical Industry
Pharmaceuticals
Aviation
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 Compliance With Relevant Laws, Regulations And Standards (E.g. Gdpr, Nis2, Dora)
Security Reviews And Audits: Planning And Conducting Internal And External Security Audits
Incident Management: Developing And Implementing Processes For Detecting, Investigating And Responding To Security Incidents
Awareness And Training: Initiating Training Programs To Raise Security Awareness Among Employees
Consulting And Leadership: Acting As An Advisor To Management And Leadership Teams On All Matters Of Information Security
Technology Monitoring: Monitoring And Evaluating Security Technologies And Cybersecurity Trends To Continuously Improve The Security Architecture
Coaching Junior Information Security Professionals
Solution-oriented And Collaborative Approach
Reliability, Openness, Directness, Commitment
Convincing Presence And Strong Presentation Skills
It Grc
Pre- & Post Audit Consulting
Enterprise Security Architecture
Pki
(C)iam
Pam
Cloud Security
It Architecture
Networks
Private Clouds
Provider Infrastructure
Public Clouds
Mac Os
Unix
(Privileged) Identity & Access Management
Federated Identity Management
Integrating And Connecting External Users Using E.g. Saml, Openid Connect
Directory Services
Public Key Infrastructures
Single Sign On
Smartcards
Etoken
Security Assessments/expert Reports
Digital Signatures & Crypto Governance (Including Venafi Tpp & Trustauthority) – Training As Vsa
Network And System Security
Ot Networks
Iot In General
Network Design
Aaa (Authentication, Authorization And Accounting)
Vpns & Mobile Computing
Data Center Security
Languages
Education
Technical Assistant in Computer Science · Germany
Certifications & licenses
CCSP (Certified Cloud Security Professional)
Prince2 Practitioner (Project Manager)
CISA (Certified Information System Auditor)
CISSP (Certified Information System Security Professional)
Profile
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