stefan probst

IT Security Professional & DevOps

Vienna, Austria

Software Engineer by education,
IT Security Architect by profession,
Car Enthusiast by passion.

My Social Profiles
  • profile
  • resume
  • events
  • cars
  • contact

Profile - About Me

Dr. Stefan Probst
  • Dr. Stefan Probst
  • July 24, 1978
  • Vienna, Austria
  • IT Security Professional & DevOps

Software Engineer by education, IT Security Architect by profession, Car Enthusiast by passion.

Welcome to my personal web site. On this site you will find information about myself, my professional life, as well as my hobbies and interests.

Stefan Probst im neuen Jaguar F-Type Coupé Stefan Probst Stefan Probst drives the Aston Martin Vantage V8 N430 Stefan Probst drives the Jaguar F-Type R Coupé
My Services
IT Professional

I've studied Software Engineering and Technical Informatics, thus living in both worlds: development and infrastructure world.
Currently my main professional activities deal with information security in software development and DevOps topics (automated deployments, being the link between developers and infrastructure people).

IT Consulting

In 1998, I've started in consulting small- and middle-sized companies regarding IT and ICT. Topics covered range from normal IT integration (e.g. Sharepoint, Backup) over Software Engineering till advanced IT Security topcis (Enterprise-PKI, DRM, Identity Management).

See my resume for more information.

Motor Advices

I'm passionate about cars. I read a lot but also test drove a lot of cars. People constantly approach me to get advices regarding car purchase.

Furthermore, I'm continuously organizing kart races within my co-mates and friends, absolutely enjoying this hobby.

Finally, I'm a big fan of slot cars, owning a 25 meter digital slot car track and more than 100 slot cars.

Resume - Personal Info

Software Engineering
C# / .NET Framework
WCF / Web Services
HTML, CSS, JavaScript, Jquery
Release Management Server
IT Infrastructure
Windows Server
Windows Security / Kerberos / Claims
PKI / Cryptography
E-Mail / MS-Exchange
Database / SQL Server
SharePoint Server
Web Server / IIS
Unix / Linux
ICT Security Concepts
Office Skills
MS Excel
MS Word
Hobbies Skills
Winter Sports
Slot Cars
Language Skills
German (mother tongue)
English (fluently)
French (basic)
Consulting Projects
  • IT Security Roadshow 2006 - 2008
    Various events

    IT Security Roadshow - How (in)secure are our systems

    Download slides
  • PKI Workshop 30.10.2006
    Österreichische Bundesbahnen

    PKI - Foundations, Concepts, and Application of PKI in a corporate environment

    Download sample "Student Working Book"
  • SharePoint e-Learning 2004 - 2005
    Microsoft Austria & BRG Zell/See

    Establishment of an e-learning platform based on Microsoft SharePoint and Microsoft Class Server

My Resume
Download my CV
  • IT Security Architect 2009 - 2018
    International Atomic Energy Agency

    Technical lead in the SG Security Model, allowing the secure transfer of data between the air-gaped high secure network and the member-state facing low-side network using network controls (Data Diodes) but also encryption mechanisms, ensuring data protection in transit and rest.

    Technical lead in the Authorization Management project for the Integrated Safeguards Environment, introducing an Identity and Access Management system featuring attribute & role-based access control and row-level filtering in the database to ensure confidentiality of data.

    Subject Matter Expert for ICT Security and part of the Incident Handling Team

    Subject Matter Expert for Infrastructure & Deployment (DevOps)

    Technical Evaluator in the Change Management Team

    Subject Matter Expert for IT Security Components used in the IAEA.

  • Program Manager IT Security 2005 - 2009
    Siemens AG

    Program Manager for Mobile and Workplace Security, working for the Corporate Information Office- Governance Information Security

    Topic Manager for Corporate PDA Service

    Topic Manager for Governance Mobile and Workplace Security, responsible for writing policies and procedures and supervise technical implementations.

  • Microsoft Technology Advisor 2004 - 2005
    Microsoft Austria

    Microsoft Education Technology Advisor for Western Austria, working in pre-sales for educational institutes.

    Training in development (.NET) and infrastructure (Microsoft Server) topics for public sector customers.

  • Scientific Staff 2000 - 2004
    Software Competence Center Hagenberg

    Member of scientific staff. Starting with January 2001 being project manager of stratetic security project "GAMMA", a software framework for re-usable security components.

  • Lecturer 2001 - 2008
    University of Applied Sciences

    Lecturer, teaching the courses: Operating Systems, Network Technology, Formal Languages and Compiler Construction, Distributed Software Systems, Computer Supported Collaborative Work.

  • Technical Student 1999 - 2000

    Technical Student at CERN, working for the LHCb project. Responsible for creating a feasibility study regarding the usage and application of Java in high-energy physics.

  • Technical Informatics (PhD) 2000 - 2004
    Johannes Kepler University Linz

    Topic of Dissertation: GAMMA - A platform independent framework for reusable security components, passed with distinction.

  • Software Engineering (Master) 1996 - 2000
    University of Applied Sciences Hagenberg

    Topic of Diploma thesis: Study the applicability of the Java language for developing large scale software systems in the context of high-energy physics.

  • CISSP 03.2011

    Certified Information Systems Security Professional

  • PRINCE2 08.2013

    PRINCE2 Foundation & PRINCE2 Practitioner

  • COBIT5 11.2014

    COBIT5 Foundation

  • ITIL 06.2015

    ITIL Foundation

  • GCIH 03.2016

    GIAC Certified Incident Handler

  • Bauer M., Probst S.: "Softwareentwicklung", Wissen ist MANZ,
    ISBN: 978-3-7068-2776-8, 2007.

    Education course book for software engineering

  • Probst S.: "Betriebssysteme - Grundlagen und Konzepte", FH Hagenberg,
    2nd Edition, 2005.

    (engl.: Operating Systems - Principles and Concepts)
    Skriptum zur LVA "Betriebssysteme", FH Hagenberg, 2nd Edition, 2005.

  • Probst S.: "UNIX", FH Hagenberg,
    2nd Edition, 2005.

    (engl.: UNIX - Principles, Concepts, Usage, and Shell Programming)
    Skriptum zur LVA "Betriebssysteme", FH Hagenberg, 2nd Edition, 2005.

  • Probst S.: "Vernetzung - Einführung in Computer Netzwerke", FH Hagenberg,
    2nd Edition, 2004.

    (engl.: Networking - Introduction into Computer networks)
    Skriptum zur LVA "Netzwerktechnologie", FH Hagenberg, 2nd Edition, 2004.

  • Probst S.: "CGI Programmierung", FH Hagenberg, 2004.

    (engl.: CGI Programming)
    Skriptum zur LVA "Netzwerktechnologie", FH Hagenberg, 2004.

  • Probst S.: "Telekooperation", FH Hagenberg, 2006.  

    (engl.: CSCW - Computer Supported Cooperative Work, Concepts in Telecooperation)
    Skriptum zur LVA "Telekooperation", FH Hagenberg, 2006.

  • Probst S.: "GAMMA - A platform independent framework for reusable authentication, authorization, and auditing components.",
    Dissertation zur Erlangung des akademischen Grades Doktor der technischen Wissenschaften, Linz, Oct. 2004.

    ... This thesis presents GAMMA, a platform and architecture neutral framework, that offers reusable authentication, authorization, and auditing mechanisms by providing declarative security mechanisms. Declarative security allows the decoupling of security logic completely from the application logic, allowing to write highly flexible, reusable but still security aware software components and applications. Furthermore, this concept is proven by presenting a reference implementation of this framework which offers several ready-to-use but still extensible authentication, authorization, and auditing mechanisms that can be transparently integrated into applications. ...

  • Probst S., Küng J.: "The need for declarative security mechanisms",
    Proc. 30th EUROMICRO and DSD Symposium, Rennes, France, Sept. 2004.

    Today, security is recognized as an absolute need in application development. Programming environments offer mechanisms and concepts allowing an easy integration of security mechanisms into the application. ... The goal of this work is to promote the usage of declarative security mechanisms which allow the decoupling of security logic completely from the application logic. Furthermore, the framework GAMMA is presented, that offers several declarative authentication, access control, and auditing mechansms that can be transparently integrated into software applicaitons.

  • Ziebermayer T., Probst S.: "Web Service Authorization Framework",
    Proc. ICWS04, San Diego, 2004.

    Web services represent an important technology for distributed applications and will replace various other technologies for distributed application development soon. ... However, for authorization no appropriate solution is available and ready to use. ... Based on existing authorization solutions and the defined requirements, a Web service authorization framework is developed. We describe concepts and the design of the proposed framework and give an overview of selected implementation aspects (e.g. authorization data access, descriptive deployment). The framework emphasizes easy deployment of Web Service authorization and is ready to use. Practical experience using the framework concludes the paper.

  • Essmayr W., Probst S., Weippl E.: "Role-based Access Controls: Status, Dissemination, and Prospects for Generic Security Mechanisms",
    Electronic Commerce Research, Kluwer Academic Publishers 4(1), pp 127-156, Jan. 2004.

    E-commerce applications have diverse security requirements ranging from business-to-business over business-to-consumer to consumer-toconsumer types of applications. This range of requirements cannot be handled adequately by oné single security model although role-based access controls depict a promising fundament for generic high-level security. ... Therefore, we present a general-purpose software framework providing security mechanisms such as authentication, access controls, and auditing for Java software development. The framework is called GAMMA and offers multiple high-level security models that may even be used concurrently to cover such diverse security requirements as found within e-commerce environments.

  • Essmayr W., Probst S., Weippl E.: "A Comparison of Distributed Authorization Solutions",
    Proc. 3rd Int. Conf. on Information Integration and Web-based Applications & Services (IIWAS), Linz, Sept. 10-12, 2001.

    Modern application architectures require flexible and ready-to-use distributed authorization mechanisms. We thus compare existing solutions for distributed authorization such as Sesame, Adage, JSEF, Kava to our newly developed framework GAMMA. We then evaluate the systems according to several criteria, including interoperability, compatibility, architecture requirements, expressiveness, and capabilities in regard to authentication, access control, and auditing.

Client reference
  • “very thorough and detailed oriented person, with superb skills and a great problem solver. ... organized, smart and knows how to get things done. His skills spread across over many technology domains and it is amazing how he designs and implements appropriate ICT solutions."

    Ameer Pichan, Senior ICT Executive; Information Security Specialist CISM, CISSP
  • “There isn't really enough I could type here to convey just how valuable Stefan is for our organization. He is indefatigable, extremely smart, practical and, on top of it all, he can give great presentation and explain our very complicated security solution in very direct, understandable, business terms that the whole organization can understand.”

    Scott Partee, Information Security and Technology Leader


I've put all my racing content to a new website that I'm pleased to announce: Please have a look and follow me there if you're interested in my car racing experience!

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2015-10-10: Ötscher Gipfelsturm Challenge
  • 2015-10-10
  • Ötscher, Lower Austria, Austria

2015-10-10: Together with my former collegues from Siemens, we decided to do a hiking tour to the top of the Ötscher mountain.
Visibility was bad but the tour was great.

2015-10-03: Schneeberg Fadensteig Tour
  • 2015-10-03
  • Schneeberg, Lower Austria, Austria

2015-10-03: Together with my friends, we did a very nice hiking tour to the top of the Schneeberg (Kaiserstein, 2061 m above sea-level) on the demanding Fadensteig.
At the top it was quite windy but overall it was an amazing tour with nice vista.

Cars - My Cars

  • 2018 Dacia Duster SR 4WD
  • 1.4 litres Diesel, 110 HP
  • 6-speed manual, 4WD
  • Active
  • 2018 -

When I first saw this car at the Vienna Autoshow, I fell in love with it. Don't know why and what it is, but actually I really like this car. It is comfortable, easy to drive, it goes well, it has high clearance and thus bad roads are not an issue and it looks beautiful as well. And looking at the options, you do not feel like in a cheap car anymore (comes with seat heating, keyless entry/drive, automatic air-condition, blind spot assist, 360° surround camera system, full blown navigation system)... for around € 22.000!

  • 2015 Jaguar XK Dynamic R
  • 5.0 litres petrol, 510 HP
  • 6-speed ZF auto
  • Active
  • 2014 -

Welcome to the class of super-sport cars! Working in an international organization entitles you for diplomatic car purchase. Originally, I wanted to have a total different car but then – by luck and talking at the right time to the right dealer – I was able to get the offer of my life: A brand-new Jaguar XK Dynamic R (unfortunately, this model was limited to the UK market but my dealer made it happen to get it compliant to the German / Austrian market (LHD, km/h, ...)). What can I say about it other than... the most amazing vehicle I ever drove!!!

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Dacia Sandero Stepway
  • 2014 Dacia Sandero Stepway
  • 0.9 litres petrol, 90 HP
  • 5-speed manual
  • Active
  • 2014 -

My Volvo got old and required some repairs, thus I decided to go for another car for the winter season. This time it should be cheap but reliable, as well as convenient. At the end, I’ve decided for the cheapest car you can by: A Dacia Sandero. Believe it or not, the car surprised me a lot. It is convenient, it is cheap, it is actually good looking. Okay, for that price you need to be fair: the interior quality cannot be compared to a Volvo, the noise level is noticeable, but hey... you get a fully equipped car with a reasonable engine for less than € 13.000,-!

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  • 1988 Pontiac Trans Am GTA
  • 5.0 litres petrol, > 250 HP
  • 3+1-speed auto
  • Active
  • 2005 -

Well, the Pontiac Firebird is a great car but given the weight, it lacks a bit of power. If you’re in this scene, it has to be a V8! Thus, I’ve started looking for a V8 and finally found it, in the rare “GTA” edition. I immediately fell in love with that “Gunmetal-Gray” color and the 5.0 Litres V8 engine (yes, the GTA also came with the 5.0 litres engine!)

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  • 2002 Volvo S40 Sport
  • 1.9 litres diesel, 85kW/115 HP
  • 5-speed manual
  • Sold
  • 2002 - 2014

As much as I like my US cars, I needed a car for winter. Unfortunately, I did not like to expose my US car to salt, chippers, and heavy winter conditions. Thus, I bought me a car especially for the winter season...

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  • 1990 Pontiac Firebird
  • 3.1 litres petrol, 103kW/140 HP
  • 3+1-speed auto
  • Suspended
  • 1999 -

Since the TV series “Knight Rider”, I was always a big fan of that car. After my Honda died, I was looking for a proper replacement. One day, during a walk in Graz, I saw it at a dealer... and I could not resist.

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  • 1979 Honda Prelude SN
  • 1.6 litres petrol, 59kW/80 HP
  • 5-speed manual
  • Retired
  • 1996 - 1999

This was my first car. I got it for free but in a horrible condition. Actually I liked the model because it reminded me a bit on the 60’s Ford Mustangs. So my team and I started restoring the car which took us about 3 months. Sadly, the car was destroyed during a flood (3am while I was sleeping)...

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Contact - Contact Me

Contact info
  • Address: Vienna, Austria.

  • Email:
  • Website:
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