Senior ALM & Engineering IT Consultant | OMG® ReqIF Expert | Tools & Infrastructure Architect | Ubuntu Linux Professional
Aktualisiert am 20.02.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.03.2026
Verfügbar zu: 100%
davon vor Ort: 100%
Requirements Management
Application Management
Scrum Product Owner
Requirements Engineering
Systems Engineering
DOORS
Polarion
ZFS
DB/2
Ubuntu
Systemadministration
Red Hat Enterprise Linux
IBM Engineering Lifecycle Management
User-Support
Virtualisierung
Firewalladministration
watchguard
ReqIF
ALM
Open Source
Intra2Net
Zabbix
German
Muttersprache
English
C1

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

5 years 8 months
2020-08 - now

Infrastructure consulting

Engineering IT Specialist / DOORS NEXT
Engineering IT Specialist / DOORS NEXT
  • Infrastructure consulting
  • IBM ELM / DOORS NEXT data model development
  • ReqIF support / DOORS NEXT
  • Support for supplier data exchange
  • User training / IBM ELM / DOORS / DOORS NEXT
  • Introduction to ReqEdit
  • IT Support
REQTEAM / MTU Aero Engines AG ? Munich, Germany
9 years 11 months
2016-05 - now

Infrastructure consulting

DOORS Next Generation (IBM Jazz/DNG) Specialist
DOORS Next Generation (IBM Jazz/DNG) Specialist
  • Infrastructure consulting
  • RM / DOORS NEXT data model development
  • ReqIF support / DOORS NEXT
  • Support for supplier data exchange
  • User training / DOORS / DOORS NEXT
  • Introduction to ReqEdit
  • End-user support
  • IT support
  • Rhapsody Design Manager
EVOCEAN / TK ELEVATOR ? Scheyern, Germany
12 years 2 months
2014-02 - now

business development

Chief executive officer
Chief executive officer
  • One of the founders of (on request).
  • Responsibilities include business development and user story/user needs analysis.
  • Azure DevOps based product development (Boards, Repos,Pipelines, Test-Plans)
on request ? Munich, Germany
21 years 7 months
2004-09 - now

professional and reliable services in systems engineering

Owner Hypervisor: VMware + Proxmox + HyperV RedHat Enterprise WIN Server ...
Owner

  • It provides professional and reliable services in systems engineering, requirements management, and project management tailored to the company's needs. 
  • Its also offers virtual machines and security solutions for rent. 
  • I have been running my own racks (on Thomas Krenn hardware) at our partner Hetzner for over 12 years, with the following software components 
  • The virtual machines are used by our partners and other companies we work with, including lawyers, retailers and business partners.

Hypervisor: VMware + Proxmox + HyperV RedHat Enterprise WIN Server Ubuntu open-e ZFS nexenta ZFS Synology NFS LVM WatchGuard Intra2Net Panda AVAST checkmk icinga Backup: Acronis Backup + proxmox Backup Server
on request ? Scheyern, Germany
4 months
2025-04 - 2025-07

Setup of new computer systems

Requirements Engineer / Manager
Requirements Engineer / Manager
  • Setup of new computer systems, more specifically a card for the systems.
  • For this, all requirements must be written
  • Processing documents in DOORS
  • Technical documentation in the project
  • Report creation and analyses
on request ? Bremen, Germany
5 months
2025-02 - 2025-06

Transfer from Doors NG to Doors Classic

Requirements Engineer / Manager
Requirements Engineer / Manager
  • Structuring of ***** system architecture
  • Modeling of ***** logical system architecture
  • Transfer from Doors NG to Doors Classic
  • Knowledge transfer on Doors usage to include employees
on request ? Bremen, Germany
5 years 11 months
2019-03 - 2025-01

Design training modules Doors and DNG

DOORS / DOORS Next Buisness Application Owner
DOORS / DOORS Next Buisness Application Owner
  • Design training modules Doors and DNG (population: KU, end user): create and update existing ones upon feedbacks
  • Support to Sites? KU and Pilots on a daily basis, upon request
  • Provide expertise in best way to answer (or challenge) needs
  • Specify Change Requests (CRs) and validate their implementation in the frame of Releases and
  • Support business in moving to DNG use: advice, methodology, pilots
  • Provide benchmark of potential roadmaps
  • Define migration scenarios from Doors, Reqtify to DNG
  • Support Programs and Projects in their migration, in relationship with IS&T support
  • Specify and validate business features answered by Doors and DNG
  • Complete the migration strategy from Doors & Reqtify to target DNG
  • Provide Doors and DNG guidelines, training and support to Key Users and End Users if requested


The subcontractor will be supported in his/her mission by:

  • ALM4A project core-team that is distributed between France, Sweden, and India
  • Sites Key Users (KU) located worldwide
  • Requirement Management Process Owner

on request ? France, Sweden, and India, France
1 year 4 months
2014-12 - 2016-03

Maintenance and development of project-specific scripts

Systems Engineer/DOORS Expert
Systems Engineer/DOORS Expert
  • Maintenance and development of project-specific scripts
  • Managing and exchanging requirements data
  • Creating metrics, reports, etc. from DOORS
  • Assisting in the development and implementation of project-specific methods in requirements management
  • Managing the DOORS project
  • Coordinating customer data exchange for Atego interface
Delphi ? Bomig, Germany
2 years 7 months
2012-01 - 2014-07

Designing an architecture for a data exchange platform

Customer Supplier Integration
Customer Supplier Integration
  • Designing an architecture for a data exchange platform (Requirements Data Exchange) in collaboration with PTC Integrity
  • Acting as a Product Owner / Product Master in SCRUM projects
  • Providing support for DOORS / MKS (PTC Integrity)
  • Offering technology consulting services
  • Creating a DOORS operating concept for the data exchange platform
  • Utilizing the MKS Requirements Interchange Format Utility (PTC)
  • Formulating a concept for data exchange (RIF / eXchange / ReqIF)
  • Working with MKS Integrity and PTC versions 9.6 and 10.x
Continental Automotive GmbH
1 year 1 month
2011-01 - 2012-01

DOORS / MKS / IBM Jazz Support

Consultant - Application Management RM
Consultant - Application Management RM
  • DOORS / MKS / IBM Jazz Support
  • Requirements Management (RM) strategy
  • DXL Development
  • DOORS operational concept
  • Subversion Introduction
  • Concept Development Rational Team Concert
  • Concept Development Microsoft Team Foundation Server
Daimler TSS ? Sindelfingen, Germany
2 years 1 month
2008-11 - 2010-11

Geschäftsführung

Vice President
Vice President
on request ? Munich, Germany
4 months
2010-07 - 2010-10

Introduction training MKS

Configuration Manager / Freelancer
Configuration Manager / Freelancer
  • Support for DOORS/MKS
  • Configuration Management (CM) strategy
  • Requirements Management (RM) strategy
  • DXL development
  • DOORS operating concept
VePOINT GmbH & Co. KG ? Nürnberg, Germany
4 months
2010-05 - 2010-08

Doors introduction and operation

DOORS Specialist / Freelancer
DOORS Specialist / Freelancer
  • DXL development
  • MKS Support
  • MKS Training
Siemens Schweiz ? Munich, Germany
4 months
2010-04 - 2010-07

Refining the DOORS operating concept

Systems Engineer/ Freelancer
Systems Engineer/ Freelancer
  • Refining the DOORS operating concept
  • Supporting software development processes via DOORS and other tools
  • Embedding the "IBM / Telelogic DOORS" tool into departmental processes
  • DOORS operating concept
  • Requirements Management DOORS
  • Subversion Support
Bertrandt (Audi AG) ? Ingolstadt, Germany
9 months
2009-10 - 2010-06

Requirement Engineering

DOORS Specialist / Freelancer
DOORS Specialist / Freelancer
  • Doors introduction and operation
  • DXL development
EADS Astrium ? Friedrichshafen, Germany

Aus- und Weiterbildung

Aus- und Weiterbildung

9 years 7 months
2016-09 - now

Informatik / Engineering Certificates

Trier University of Applied Sciences
Trier University of Applied Sciences
2 years 3 months
2008-08 - 2010-10

Informatik

Fernuniversität Hagen
Fernuniversität Hagen
4 years 1 month
1999-09 - 2003-09

Informatik

intermediate examination for a diploma, Universität Bremen
intermediate examination for a diploma
Universität Bremen
7 years 1 month
1992-09 - 1999-09

Gymnasium

general qualification for university entrance, Gymnasium Osterholz-Scharmbeck
general qualification for university entrance
Gymnasium Osterholz-Scharmbeck

Kompetenzen

Kompetenzen

Top-Skills

Requirements Management Application Management Scrum Product Owner Requirements Engineering Systems Engineering DOORS Polarion ZFS DB/2 Ubuntu Systemadministration Red Hat Enterprise Linux IBM Engineering Lifecycle Management User-Support Virtualisierung Firewalladministration watchguard ReqIF ALM Open Source Intra2Net Zabbix

Produkte / Standards / Erfahrungen / Methoden

ABOUT ME

I have over 25 years of experience in requirements engineering and management. I am a certified Scrum Product Owner and an IBM RM Tools specialist. My mission is to help customers around the world by introducing new methods, tools, and strategic concepts that enhance their product development processes and outcomes.


SKILLS

  • DOORS (Including DXL Scripting) 
  • IBM ELM 
  • Redhat administration 
  • Network concepts knowledge (NAT, DNS, DHCP, Firewall rules) 
  • Watchguard Certified System Professional - XTM 
  • Network services and protocols (DHCP, DNS, HTTP, TCP, UDP, IMAP3) 
  • Firewall (Fortinet, Sophos, Checkpoint) 
  • Network System Design 
  • Network Infrastructure (Advanced) 
  • Windows Server (2003 up to 2022 - AD, DHCP, DNS, Print, Backup, etc.) 
  • ZFS filesystem 
  • Scrum Product Owner 
  • Requirements Management on DOORS 
  • Server management on VMware infrastructures 
  • PTC Integrity 
  • Intland codeBeamer 
  • IBM Jazz Team Server 
  • IBM Rational (Rhapsody, Doors, Publishing Engine) 
  • IBM DB2 
  • Ansible playbooks 
  • HYPER-V 
  • RedHat OpenShift Basic 
  • Windows 
  • Windows Server 
  • QEMU/KVM, Hyper-V, VMware ESXi & vCenter, Proxmox 
  • Siemens Polarion ALM 
  • Polarion Requirements 
  • Canonical - Ubuntu Linux 

Branchen

Branchen

My experience is rooted in safety-critical and regulated industries:

  • Automotive (OEMs & Tier 1)

  • Aerospace & Defense

  • Rail / Rolling Stock

  • Medical Technology

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

5 years 8 months
2020-08 - now

Infrastructure consulting

Engineering IT Specialist / DOORS NEXT
Engineering IT Specialist / DOORS NEXT
  • Infrastructure consulting
  • IBM ELM / DOORS NEXT data model development
  • ReqIF support / DOORS NEXT
  • Support for supplier data exchange
  • User training / IBM ELM / DOORS / DOORS NEXT
  • Introduction to ReqEdit
  • IT Support
REQTEAM / MTU Aero Engines AG ? Munich, Germany
9 years 11 months
2016-05 - now

Infrastructure consulting

DOORS Next Generation (IBM Jazz/DNG) Specialist
DOORS Next Generation (IBM Jazz/DNG) Specialist
  • Infrastructure consulting
  • RM / DOORS NEXT data model development
  • ReqIF support / DOORS NEXT
  • Support for supplier data exchange
  • User training / DOORS / DOORS NEXT
  • Introduction to ReqEdit
  • End-user support
  • IT support
  • Rhapsody Design Manager
EVOCEAN / TK ELEVATOR ? Scheyern, Germany
12 years 2 months
2014-02 - now

business development

Chief executive officer
Chief executive officer
  • One of the founders of (on request).
  • Responsibilities include business development and user story/user needs analysis.
  • Azure DevOps based product development (Boards, Repos,Pipelines, Test-Plans)
on request ? Munich, Germany
21 years 7 months
2004-09 - now

professional and reliable services in systems engineering

Owner Hypervisor: VMware + Proxmox + HyperV RedHat Enterprise WIN Server ...
Owner

  • It provides professional and reliable services in systems engineering, requirements management, and project management tailored to the company's needs. 
  • Its also offers virtual machines and security solutions for rent. 
  • I have been running my own racks (on Thomas Krenn hardware) at our partner Hetzner for over 12 years, with the following software components 
  • The virtual machines are used by our partners and other companies we work with, including lawyers, retailers and business partners.

Hypervisor: VMware + Proxmox + HyperV RedHat Enterprise WIN Server Ubuntu open-e ZFS nexenta ZFS Synology NFS LVM WatchGuard Intra2Net Panda AVAST checkmk icinga Backup: Acronis Backup + proxmox Backup Server
on request ? Scheyern, Germany
4 months
2025-04 - 2025-07

Setup of new computer systems

Requirements Engineer / Manager
Requirements Engineer / Manager
  • Setup of new computer systems, more specifically a card for the systems.
  • For this, all requirements must be written
  • Processing documents in DOORS
  • Technical documentation in the project
  • Report creation and analyses
on request ? Bremen, Germany
5 months
2025-02 - 2025-06

Transfer from Doors NG to Doors Classic

Requirements Engineer / Manager
Requirements Engineer / Manager
  • Structuring of ***** system architecture
  • Modeling of ***** logical system architecture
  • Transfer from Doors NG to Doors Classic
  • Knowledge transfer on Doors usage to include employees
on request ? Bremen, Germany
5 years 11 months
2019-03 - 2025-01

Design training modules Doors and DNG

DOORS / DOORS Next Buisness Application Owner
DOORS / DOORS Next Buisness Application Owner
  • Design training modules Doors and DNG (population: KU, end user): create and update existing ones upon feedbacks
  • Support to Sites? KU and Pilots on a daily basis, upon request
  • Provide expertise in best way to answer (or challenge) needs
  • Specify Change Requests (CRs) and validate their implementation in the frame of Releases and
  • Support business in moving to DNG use: advice, methodology, pilots
  • Provide benchmark of potential roadmaps
  • Define migration scenarios from Doors, Reqtify to DNG
  • Support Programs and Projects in their migration, in relationship with IS&T support
  • Specify and validate business features answered by Doors and DNG
  • Complete the migration strategy from Doors & Reqtify to target DNG
  • Provide Doors and DNG guidelines, training and support to Key Users and End Users if requested


The subcontractor will be supported in his/her mission by:

  • ALM4A project core-team that is distributed between France, Sweden, and India
  • Sites Key Users (KU) located worldwide
  • Requirement Management Process Owner

on request ? France, Sweden, and India, France
1 year 4 months
2014-12 - 2016-03

Maintenance and development of project-specific scripts

Systems Engineer/DOORS Expert
Systems Engineer/DOORS Expert
  • Maintenance and development of project-specific scripts
  • Managing and exchanging requirements data
  • Creating metrics, reports, etc. from DOORS
  • Assisting in the development and implementation of project-specific methods in requirements management
  • Managing the DOORS project
  • Coordinating customer data exchange for Atego interface
Delphi ? Bomig, Germany
2 years 7 months
2012-01 - 2014-07

Designing an architecture for a data exchange platform

Customer Supplier Integration
Customer Supplier Integration
  • Designing an architecture for a data exchange platform (Requirements Data Exchange) in collaboration with PTC Integrity
  • Acting as a Product Owner / Product Master in SCRUM projects
  • Providing support for DOORS / MKS (PTC Integrity)
  • Offering technology consulting services
  • Creating a DOORS operating concept for the data exchange platform
  • Utilizing the MKS Requirements Interchange Format Utility (PTC)
  • Formulating a concept for data exchange (RIF / eXchange / ReqIF)
  • Working with MKS Integrity and PTC versions 9.6 and 10.x
Continental Automotive GmbH
1 year 1 month
2011-01 - 2012-01

DOORS / MKS / IBM Jazz Support

Consultant - Application Management RM
Consultant - Application Management RM
  • DOORS / MKS / IBM Jazz Support
  • Requirements Management (RM) strategy
  • DXL Development
  • DOORS operational concept
  • Subversion Introduction
  • Concept Development Rational Team Concert
  • Concept Development Microsoft Team Foundation Server
Daimler TSS ? Sindelfingen, Germany
2 years 1 month
2008-11 - 2010-11

Geschäftsführung

Vice President
Vice President
on request ? Munich, Germany
4 months
2010-07 - 2010-10

Introduction training MKS

Configuration Manager / Freelancer
Configuration Manager / Freelancer
  • Support for DOORS/MKS
  • Configuration Management (CM) strategy
  • Requirements Management (RM) strategy
  • DXL development
  • DOORS operating concept
VePOINT GmbH & Co. KG ? Nürnberg, Germany
4 months
2010-05 - 2010-08

Doors introduction and operation

DOORS Specialist / Freelancer
DOORS Specialist / Freelancer
  • DXL development
  • MKS Support
  • MKS Training
Siemens Schweiz ? Munich, Germany
4 months
2010-04 - 2010-07

Refining the DOORS operating concept

Systems Engineer/ Freelancer
Systems Engineer/ Freelancer
  • Refining the DOORS operating concept
  • Supporting software development processes via DOORS and other tools
  • Embedding the "IBM / Telelogic DOORS" tool into departmental processes
  • DOORS operating concept
  • Requirements Management DOORS
  • Subversion Support
Bertrandt (Audi AG) ? Ingolstadt, Germany
9 months
2009-10 - 2010-06

Requirement Engineering

DOORS Specialist / Freelancer
DOORS Specialist / Freelancer
  • Doors introduction and operation
  • DXL development
EADS Astrium ? Friedrichshafen, Germany

Aus- und Weiterbildung

Aus- und Weiterbildung

9 years 7 months
2016-09 - now

Informatik / Engineering Certificates

Trier University of Applied Sciences
Trier University of Applied Sciences
2 years 3 months
2008-08 - 2010-10

Informatik

Fernuniversität Hagen
Fernuniversität Hagen
4 years 1 month
1999-09 - 2003-09

Informatik

intermediate examination for a diploma, Universität Bremen
intermediate examination for a diploma
Universität Bremen
7 years 1 month
1992-09 - 1999-09

Gymnasium

general qualification for university entrance, Gymnasium Osterholz-Scharmbeck
general qualification for university entrance
Gymnasium Osterholz-Scharmbeck

Kompetenzen

Kompetenzen

Top-Skills

Requirements Management Application Management Scrum Product Owner Requirements Engineering Systems Engineering DOORS Polarion ZFS DB/2 Ubuntu Systemadministration Red Hat Enterprise Linux IBM Engineering Lifecycle Management User-Support Virtualisierung Firewalladministration watchguard ReqIF ALM Open Source Intra2Net Zabbix

Produkte / Standards / Erfahrungen / Methoden

ABOUT ME

I have over 25 years of experience in requirements engineering and management. I am a certified Scrum Product Owner and an IBM RM Tools specialist. My mission is to help customers around the world by introducing new methods, tools, and strategic concepts that enhance their product development processes and outcomes.


SKILLS

  • DOORS (Including DXL Scripting) 
  • IBM ELM 
  • Redhat administration 
  • Network concepts knowledge (NAT, DNS, DHCP, Firewall rules) 
  • Watchguard Certified System Professional - XTM 
  • Network services and protocols (DHCP, DNS, HTTP, TCP, UDP, IMAP3) 
  • Firewall (Fortinet, Sophos, Checkpoint) 
  • Network System Design 
  • Network Infrastructure (Advanced) 
  • Windows Server (2003 up to 2022 - AD, DHCP, DNS, Print, Backup, etc.) 
  • ZFS filesystem 
  • Scrum Product Owner 
  • Requirements Management on DOORS 
  • Server management on VMware infrastructures 
  • PTC Integrity 
  • Intland codeBeamer 
  • IBM Jazz Team Server 
  • IBM Rational (Rhapsody, Doors, Publishing Engine) 
  • IBM DB2 
  • Ansible playbooks 
  • HYPER-V 
  • RedHat OpenShift Basic 
  • Windows 
  • Windows Server 
  • QEMU/KVM, Hyper-V, VMware ESXi & vCenter, Proxmox 
  • Siemens Polarion ALM 
  • Polarion Requirements 
  • Canonical - Ubuntu Linux 

Branchen

Branchen

My experience is rooted in safety-critical and regulated industries:

  • Automotive (OEMs & Tier 1)

  • Aerospace & Defense

  • Rail / Rolling Stock

  • Medical Technology

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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