As a freelance professional within Professional InfoSec Services, I bring >15 years of dedicated experience.
Aktualisiert am 12.05.2025
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 18.05.2025
Verfügbar zu: 100%
davon vor Ort: 100%
Penetrationstest
Entwickler
Risikomanagement

Einsatzorte

Einsatzorte

Deutschland
möglich

Projekte

Projekte

2018 - 2021: security for mobile applications, service cloud, and external identity management

Role: Global Lead for Mobile Application Security and Service Cloud Application Security - Senior Security Applications Engineer
Customer: Salesforce

Tasks:

  • security for mobile applications, service cloud, and external identity management
  • Project management
  • Risk assessments and risk evaluation
  • Security advisor for internal DevOps teams and management
  • Security sign-off for releases
  • Incident handling with SOC (SIEM / SOAR)
  • Management of external audits and penetration tests
  • Prioritization and evaluation of identified and reported security vulnerabilities (internal & external)
  • Review of existing processes and policies
  • IT-security policy development including disaster recovery planning
  • Code review
  • Exploit & POC development


2015 - 2018: Achieve PCI DSS/ISO Certification

Role: Technical Director
Customer: Krypton Security

Tasks:
Project Management incl. Planning & Scoping, Risk Management, Improve Cybersecurity Maturity Level, Network & Infrastructure Penetration Testing, Mobile Penetration Testing, Web Application Penetration Testing, Managed Services for SOC&SIEM.
  • Technical Director (Krypton Security)Team Lead Penetration Testing Team
    • Penetration Testing (Network, Application, Mobile, Core Banking), incl. Red Team Testing
    • Project Management & Remediation Planning
    • IT-Security Architecture
    • IT-Compliance & Policy validation, Configuration Hardening
    • Incident Management/Forensic Investigation
    • Managed Service offerings for SOCs including incident handling, SIEM/IDS Use Case Development, and SOPs
    • Source Code Audit, Secure Development, Quality Assurance
    • Threat Modeling

2016 - 2018: Managed Security Services and Security Project Management

Role: Technical Director
Customer: Krypton Security

Tasks:
Managed Security Services and Security Project Management: Multiple Penetration Testing Engagements including Payment Infrastructure (Network & Infrastructure Penetration Testing, Project planning for building a SOC (SIEM), Mobile Penetration Testing, Web Application Penetration Testing), duration 3 years

  • Technical Director (Krypton Security)
    • Team Lead Penetration Testing Team
    • Penetration Testing (Network, Application, Mobile, Core Banking)
    • Project Management
    • Plan a SOC (budget & resource planning, architecture, processes)
    • Source Code Audit, Secure Development, Threat Modeling
    • IT-Compliance & Policy validation, Configuration Hardening
    • Project/Engagement Management


2017 - 2017: Application and Solution Security Testing of the Payment Solution for Refugee Program (duration 3 months)

Role: Technical Director
Customer: Krypton Security

Tasks:
  • Security Assessment (Windows, PHP, C#, Oracle)
  • Network & Application Penetration Testing, Configuration Hardening

2014 - 2014: Application Penetration Tests, Source Code Audit, Hardening, (duration 3 months)

Role: Security Consultant
Customer: Virtual Forge GmbH

Tasks:
  • Source Code Audit (SAP ABAP & SAP Java)
  • Project Management
  • Threat Modeling, Secure Development
  • Application and Configuration Hardening

2013 - 2013: Source code audits of in-house Intranet and 3rd party B2B applications, (duration 2 months)

Role: Security Consultant
Customer: n.runs professionals GmbH

Tasks:
  • Source code audits (J2EE, Java, .NET Framework, C#, C++, proprietary RPCs)
  • Reverse Engineering
  • Web security & Transport security, Secure storage

2013 - 2013: Infrastructure Penetration Test (duration 1 month)

Role: Security Consultant
Customer: n.runs professionals GmbH

Tasks:
  • Security analysis based on IT compliance and policy framework
  • Infrastructure Penetration Testing
  • Denial of service tests to test BCM (business continuity management) processes of outsourcing provider (ITSCM)

2013 - 2013: Security analysis on a gaming console from the network perspective (duration 3 months)

Role: Security Consultant
Customer: n.runs professionals GmbH

Tasks:
  • Security analysis based on developed network threat model
  • Hardware security
  • Fuzzing, Transport security, Attack surface reduction
  • Development network analysis tools
  • Exploit Development

2012 - 2012: Multiple internal product security audits

Role: Security Consultant
Customer: n.runs professionals GmbH

Tasks:
  • Generally based on source code audits (C/C++/C#, Java)
  • Fuzzing, Threat Modeling, Secure developmen

Position

Position

Managing Director (CTO)

Kompetenzen

Kompetenzen

Top-Skills

Penetrationstest Entwickler Risikomanagement

Produkte / Standards / Erfahrungen / Methoden

EXPERTISE
  • Information Security and Architecture
  • Application Development


WORK EXPERIENCE

  • Development since 1998 (25 years)
  • Cyber-/IT-Security since 2006 (17 years)
  • Project Management (17 years) 


SKILLS

  • IT-Security Architecture
  • Project-Management
  • Risk Management
  • IT-Security Compliance, Policy Development, and GRC
  • Penetration Testing
  • Secure Administration & Hardening
  • Secure Development & Source Code Review
  • Mobile & Web Application Security
  • Identity Management & Access Control
  • SOC, SIEM, and Cloud SIEM
  • Reverse Engineering and Binary Analysis (Malware)
  • Forensic Investigations
  • Agile Project-Management

EMPLOYMENT HISTORY
2022 - today
Customer: on Request
Role: Founder & CTO 

2018 - 2021
Customer: Salesforce in Dublin, Ireland
Role: Global Lead for Mobile Application Security and Service Cloud Application Security - Senior Security Applications Engineer

2015 - 2018
Customer: Krypton Security (Middle East)
Role: Technical Director & Senior Partner Project sizes 20k USD ? 4M USD

2014 - 2014
Customer: Virtual Forge GmbH in Germany
Role: Senior IT Security Consultant & Project Management 

2012 - 2014
Customer: n.runs professionals GmbH in Germany
Role: Senior IT Security Consultant & PM 

2007 - 2012
Customer: Xing AG in Germany
Role: Senior Software Engineer & Technical Project Management 

2000 - 2007
Customer: Intersoft AG in Germany
Role: Software Engineer & Performance Specialist, technical key role in projects up to 50 Mio. ? 

Betriebssysteme

Linux
*BSD
iOS
Android
Unix
Solaris
all Windows versions
MacOS

Programmiersprachen

C, C++
C#
Java
Go
Python
Ruby
PHP
Perl
Lua
Shell scripting
Objective-C

Branchen

Branchen

  • Banking, Financial Services & Insurance
  • Internet and Technology
  • Telecommunication
  • Services Industry
  • Manufacturing
  • Retails & Distribution

Einsatzorte

Einsatzorte

Deutschland
möglich

Projekte

Projekte

2018 - 2021: security for mobile applications, service cloud, and external identity management

Role: Global Lead for Mobile Application Security and Service Cloud Application Security - Senior Security Applications Engineer
Customer: Salesforce

Tasks:

  • security for mobile applications, service cloud, and external identity management
  • Project management
  • Risk assessments and risk evaluation
  • Security advisor for internal DevOps teams and management
  • Security sign-off for releases
  • Incident handling with SOC (SIEM / SOAR)
  • Management of external audits and penetration tests
  • Prioritization and evaluation of identified and reported security vulnerabilities (internal & external)
  • Review of existing processes and policies
  • IT-security policy development including disaster recovery planning
  • Code review
  • Exploit & POC development


2015 - 2018: Achieve PCI DSS/ISO Certification

Role: Technical Director
Customer: Krypton Security

Tasks:
Project Management incl. Planning & Scoping, Risk Management, Improve Cybersecurity Maturity Level, Network & Infrastructure Penetration Testing, Mobile Penetration Testing, Web Application Penetration Testing, Managed Services for SOC&SIEM.
  • Technical Director (Krypton Security)Team Lead Penetration Testing Team
    • Penetration Testing (Network, Application, Mobile, Core Banking), incl. Red Team Testing
    • Project Management & Remediation Planning
    • IT-Security Architecture
    • IT-Compliance & Policy validation, Configuration Hardening
    • Incident Management/Forensic Investigation
    • Managed Service offerings for SOCs including incident handling, SIEM/IDS Use Case Development, and SOPs
    • Source Code Audit, Secure Development, Quality Assurance
    • Threat Modeling

2016 - 2018: Managed Security Services and Security Project Management

Role: Technical Director
Customer: Krypton Security

Tasks:
Managed Security Services and Security Project Management: Multiple Penetration Testing Engagements including Payment Infrastructure (Network & Infrastructure Penetration Testing, Project planning for building a SOC (SIEM), Mobile Penetration Testing, Web Application Penetration Testing), duration 3 years

  • Technical Director (Krypton Security)
    • Team Lead Penetration Testing Team
    • Penetration Testing (Network, Application, Mobile, Core Banking)
    • Project Management
    • Plan a SOC (budget & resource planning, architecture, processes)
    • Source Code Audit, Secure Development, Threat Modeling
    • IT-Compliance & Policy validation, Configuration Hardening
    • Project/Engagement Management


2017 - 2017: Application and Solution Security Testing of the Payment Solution for Refugee Program (duration 3 months)

Role: Technical Director
Customer: Krypton Security

Tasks:
  • Security Assessment (Windows, PHP, C#, Oracle)
  • Network & Application Penetration Testing, Configuration Hardening

2014 - 2014: Application Penetration Tests, Source Code Audit, Hardening, (duration 3 months)

Role: Security Consultant
Customer: Virtual Forge GmbH

Tasks:
  • Source Code Audit (SAP ABAP & SAP Java)
  • Project Management
  • Threat Modeling, Secure Development
  • Application and Configuration Hardening

2013 - 2013: Source code audits of in-house Intranet and 3rd party B2B applications, (duration 2 months)

Role: Security Consultant
Customer: n.runs professionals GmbH

Tasks:
  • Source code audits (J2EE, Java, .NET Framework, C#, C++, proprietary RPCs)
  • Reverse Engineering
  • Web security & Transport security, Secure storage

2013 - 2013: Infrastructure Penetration Test (duration 1 month)

Role: Security Consultant
Customer: n.runs professionals GmbH

Tasks:
  • Security analysis based on IT compliance and policy framework
  • Infrastructure Penetration Testing
  • Denial of service tests to test BCM (business continuity management) processes of outsourcing provider (ITSCM)

2013 - 2013: Security analysis on a gaming console from the network perspective (duration 3 months)

Role: Security Consultant
Customer: n.runs professionals GmbH

Tasks:
  • Security analysis based on developed network threat model
  • Hardware security
  • Fuzzing, Transport security, Attack surface reduction
  • Development network analysis tools
  • Exploit Development

2012 - 2012: Multiple internal product security audits

Role: Security Consultant
Customer: n.runs professionals GmbH

Tasks:
  • Generally based on source code audits (C/C++/C#, Java)
  • Fuzzing, Threat Modeling, Secure developmen

Position

Position

Managing Director (CTO)

Kompetenzen

Kompetenzen

Top-Skills

Penetrationstest Entwickler Risikomanagement

Produkte / Standards / Erfahrungen / Methoden

EXPERTISE
  • Information Security and Architecture
  • Application Development


WORK EXPERIENCE

  • Development since 1998 (25 years)
  • Cyber-/IT-Security since 2006 (17 years)
  • Project Management (17 years) 


SKILLS

  • IT-Security Architecture
  • Project-Management
  • Risk Management
  • IT-Security Compliance, Policy Development, and GRC
  • Penetration Testing
  • Secure Administration & Hardening
  • Secure Development & Source Code Review
  • Mobile & Web Application Security
  • Identity Management & Access Control
  • SOC, SIEM, and Cloud SIEM
  • Reverse Engineering and Binary Analysis (Malware)
  • Forensic Investigations
  • Agile Project-Management

EMPLOYMENT HISTORY
2022 - today
Customer: on Request
Role: Founder & CTO 

2018 - 2021
Customer: Salesforce in Dublin, Ireland
Role: Global Lead for Mobile Application Security and Service Cloud Application Security - Senior Security Applications Engineer

2015 - 2018
Customer: Krypton Security (Middle East)
Role: Technical Director & Senior Partner Project sizes 20k USD ? 4M USD

2014 - 2014
Customer: Virtual Forge GmbH in Germany
Role: Senior IT Security Consultant & Project Management 

2012 - 2014
Customer: n.runs professionals GmbH in Germany
Role: Senior IT Security Consultant & PM 

2007 - 2012
Customer: Xing AG in Germany
Role: Senior Software Engineer & Technical Project Management 

2000 - 2007
Customer: Intersoft AG in Germany
Role: Software Engineer & Performance Specialist, technical key role in projects up to 50 Mio. ? 

Betriebssysteme

Linux
*BSD
iOS
Android
Unix
Solaris
all Windows versions
MacOS

Programmiersprachen

C, C++
C#
Java
Go
Python
Ruby
PHP
Perl
Lua
Shell scripting
Objective-C

Branchen

Branchen

  • Banking, Financial Services & Insurance
  • Internet and Technology
  • Telecommunication
  • Services Industry
  • Manufacturing
  • Retails & Distribution

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

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