Active Directory
Aktualisiert am 08.03.2026
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Active Directory
Active Directory Domain Service
Active Directory Federation Service
Active Directory Design
Active Directory Administration
Windows Server
Deutsch
Englisch

Einsatzorte

Einsatzorte

Österreich, Schweiz, Deutschland

Deutschland: bevorzugter Einsatzbereich D4 D5

möglich

Projekte

Projekte

4 Monate
2021-03 - 2021-06

Migration Certificate Services

Consultant
Consultant

 Design new CA

Build new CA

Migration of Certificate Templates

Enrollment new certificates

Windows Server 2016 Windows Server 2012
LowellServices GmbH
Essen, Ruhr
2 Jahre 11 Monate
2018-08 - 2021-06

Consolidation Active Directory Forests und Data Centres

Consultant
Consultant

Consolidation into one Forest

Migration users and computers

Concept and implementation basic services (DNS, AD, CA, ADFS) in the new data centre

Consolidation basic services into the new data centre

Windows Server 2016 Windows Server 2012
Lowell Services GmbH
Essen
2 Monate
2021-04 - 2021-05

Migration standalone AD FS server to new AD FS Farm

Consultant
Consultant
Migration standalone AD FS server to new  AD FS Farm
Windows Server 2016 Windows Server 2012
Essen, Ruhr
1 Jahr 2 Monate
2017-11 - 2018-12

Concept Identity und Authentification

Architect
Architect

Concept Identity

Concept Resource Forest

Concept Active Directory

Concept Active Directory Federation Services

Support during implementation

Windows Server 2016
Microsoft Deutschland GmbH
Münster, Westfalen
10 Monate
2017-11 - 2018-08

Verification Operating Concept, Concept Forest Consolidation, Coordination IT Service Provier

Consultant
Consultant

Verification Operating Concept

Concept Forest Consolidation

Coordination IT Service Provier

Windows Server 2012 R2 Windows Server 2016
Karstadt AG
Essen, Ruhr
5 Monate
2017-06 - 2017-10

Troubelshoot Active Directory and Verify Implementation

Consultant
Consultant

 Verify Active Directory functionality

Troubleshoot and streamline Active Directory and Windows Server

Strengthen Security (disable old unused protocols, implement tier model,

centralised event logging, ...

General Consulting

Windows Server 2016
Lebenshilfe Oberhausen gGmbh
Oberhausen (D-46049, D-46047, D-46117, D-46119, D-46149, D-46147, D-46045, D-46145)
1 Monat
2017-09 - 2017-09

Design and Implementation Active Directory Federation Services Farm

Consultant
Consultant

Design Active Directory Federation Services Farm

Design Active Directory Federation Services Proxy Farm

Implementation

Windows Server 2012 R2
ASB Informationstechnik GmbH
Datteln
1 Monat
2017-08 - 2017-08

Consulting

Consultant
Consultant

evaluate migration concept

expand migration concept

consulting IT integration of newly acciered companies

recommendation of security improvements

general consulting

Exchange 2013 Windows Server 2003 Windows Server 2008 Windows Server 2008 R2 Windows Server 2012 Windows Server 2012 R2
Haba Administration GmbH
Bad Rodach
1 Jahr
2016-05 - 2017-04

Plan, Build and Operation Active Directory Federation Services

Concept creation: Continous development of authentication strategy, update organisational guide lines, presentation and attunement in boards and panels, performance tests, concept creation of ADFS farm

Implementation: building of ADFS farm, monitoring concept, backup/restore concept, availability planning

Operations: monitoring, restore tests,analysys of authentication failures, expert monitoring of audits

implementation of federation trusts with service providers ( SuccessFactors, Office 365, ?)

Windows Server 2012 R2 Active Directory Federation Services
Evonik Industries AG
Marl, Westfalen
2 Jahre 11 Monate
2014-06 - 2017-04

Member of IT architecture board

Architect
Architect

Assessment of concepts

coordination of changes in IT landscape

support for implementation of new services

adjustment of services to new requirements

strategy recommendations

FedEx-Days for concept finding and binding decissions on cross service operational concepts

Marl, Westfalen
6 Jahre 7 Monate
2010-10 - 2017-04

Operation and development of Active Directory

Consultant
Consultant

Operation of the world wide Active Directory

Migration Windows 2003 to Windows Server 2008

Optimisation of AD structure

Backup/restore concepts and tests

monitoring

Automatisation Active Directory Sites & Services by authomatic subnet and site updates via authomatic uploads from QIP 

Carve Ins and Carve Outs

3rd level Support Active Directory

Consolidation

Implementation and adjustment of complience requirements

Reporting

Windows 2003 Windows 2008 Windows Server 2012 R2 QIP
Evonik Industries AG
Marl, Westfalen
1 Jahr 1 Monat
2016-03 - 2017-03

Support Migration Notes/SameTime/Sharepoint to Office 365

Architect, Consultant
Architect, Consultant

Authentication Concept: Coordination with Microsoft, definition and communication of the prerequisites to client/server operators, update of organisational guide lines 

Implementation: Expansion of ADFS farm with an ADFS Proxy farm, implementation authentication from the internet via Web Application Firewall, support client operators by implementing the prerequisites, monitoring concept, backup/restore concept, availability planning

Opperation: monitoring, restore tests, analysis of authenticatin errors

Windows Server 2012 R2 Active Directory Federation Services
Marl, Westfalen
7 Monate
2015-10 - 2016-04

Plan and build Windows Server 2012 R2 Active Directory Forest, preperation of migration

Architect
Architect

Conception: Update organisational guide lines, presentation and attunement in boards and panels, create forest concept

Implementation: build of forest, monitoring concept, backup/restore concept/availability planning

Operations: Monitoring, restore tests, implementation of application requirements, adjustment to organisational changes, support of application providers by implementing authentication requirements,  expert monitoring auf audits, securit and risk assessments

Windows Server 2012 R2 QIP
Evonik Industries AG
Marl, Westfalen
4 Jahre 6 Monate
2006-04 - 2010-09

Single Sign On

Software Engineer
Software Engineer

Kerberos based SSO to enable logon to SAP systems

Rollout to 3000 users in 8 locations in Germany

Windows 2003 SAP 4.6 SapGui 6.40
STEAG AG
Essen, Ruhr
4 Jahre 9 Monate
2006-01 - 2010-09

Migration Windows 2000 to Windows 2003

Software Engineer
Software Engineer

Konsolidation of 4 Windows 2000 domains to one Windows 2003 domain

Migration of computer accounts, user, server, data and applications

Windows 2000 Windows Server 2003 Windows XP
Steag AG
Essen, Ruhr
6 Jahre 4 Monate
2004-06 - 2010-09

Development and implementation of a network scan and print solution with smart card based authentication

Software Engineer
Software Engineer

Development of a company wide network scan and print solution on high volume multi function printers

Requirements: follow me print functionality, scan to user specific network folders, logon to the printers via smart card based certificates in crypto chip against Active Directory

Read the scan targets from Active Directory, list and retrieve the users specific print jobs from central print servers

At the time of the project, there was no solution offering that functionality, so large parts of the project consisted of intensive discussion with printer manufacturers to get them to implement respective functionality.

At the end of the project, one printer manufacturer was able to offer the requested functionality (exept SAP print jobs).

Windows XP Windows Server 2003
STEAG AG
Essen, Ruhr
11 Jahre 11 Monate
1998-11 - 2010-09

UHD: 1st, 2nd und 3rd Level Support, Administration and small projects

Software Engineer
Software Engineer

Administration of a NT 4 und Exchange environment

2nd Level Support Software

Migration from Windows NT 3.51 to Windows NT 4.0

Migration from Exchange 4.0 to Exchange 5.5

Implementation of remote work places

Windows NT 3.51 4.0 95 2000 2003 XP Exchange 4.0 5.5 MS Office Veritas Backup Exec 6.x 7.x 8.x 9 10 Filemaker 3.x 4.x 5.x 6 7 8 MS IE 4.x 6.x CompuServe 3.x Network Associates Groupshield 4.x Network Associates Netshield 4.x TrendMicro Norton Antivirus Netscape 4.x SMS Lotus Notes Domino 4.x Firewall 1 MS SNA-Server SAP R/3 Client Terminal-Emulationen (SDC 97 16bit 32bit 3270 ...) diverse Anwendungssoftware (Micro Grafix Designer Palm-Pilot Synchronisation (Hotsync Intellisync) Acrobat Reader
STEAG AG
Essen
1 Jahr 3 Monate
2004-10 - 2005-12

Migration NT 4, Exchange 5.5 in existing Windows 2003, Exchange 2003 forest

Software Engineer
Software Engineer

Migration of a  NT 4 Exchange 5.5 Environment (11 Sites) into one existing Windows 2003, Exchange 2003 forest

Windows NT 4 Exchange 5.5 Windows 2000 Windows Server 2003 Exchange 2003
STEAG AG
Essen
2 Jahre
2003-01 - 2004-12

Redesign and Expansion of Active Directory

Sofware Engineer
Sofware Engineer

Taking over a running migration project (migration of servers from NT 4 to Windows 2000 and migration of clients from NT 4 to Windows XP)

Redesign of Active Directory and DNS

Continuation of the OS rollout and user migration

redesign group policies

redesign AD rights structure

Windows NT 4 Windows 2000 Windows XP
STEAG AG
Essen, Ruhr
3 Jahre 1 Monat
2001-01 - 2004-01

Design, implementation and operation of a world wide mail system

Consultant
Consultant

Design, implementation and administration of a mail system for the European sites of a US high tec company

Windows NT 4 Exchange 5.5
Mattson Technology, Inc
Essen, Ruhr
3 Jahre
2001-01 - 2003-12

Consulting and Trouble-Shooting Client-Server and Exchange 5.5

Consultant
Consultant

Support for the German branche in all IT related questions

Troubleshouting Exchange 5.5,  Windows 98, NT 4, Windows 200, Windows XP Client-Server landscape

Support for Firewall 1 operations

LAN/WAN topics

Windows 98 Exchange 5.5 Windows NT 4 Windows 2000 Windows XP
NAGASE & CO., LTD.
Dusseldorf
6 Monate
2000-08 - 2001-01

Introduction of virus scan solution

Software Engineer
Software Engineer

Design and implementation of a corporate anti virus scan solution

Windows NT McAfee Windows 2000
STEAG AG
Essen, Ruhr
5 Monate
2000-08 - 2000-12

Administration Windows NT Cluster

Software Engineer
Software Engineer

Administration Windows NT Clusters as platform for an SQL Cluster

Windows NT 4.0
STEAG AG
Essen
6 Monate
1999-11 - 2000-04

Implementation of a mailsystem in a distributed Windows 2000 test environment

Software Engineer
Software Engineer

Implementation of a NT 4 Exchange 5.5 environment and a Windows 2000 Exchange 2000 environment 

Definition and test of migration scenarios and strategies

Windows NT 4.0 Exchange 5.5 Windows 2000
GE Compunet
Essen, Ruhr
2 Monate
1998-10 - 1998-11

Client-Rollout

Software Engineer
Software Engineer

Reinstallation of Workstations

Windows NT 4.0 MS Office 97 SAP R/3-Client
1 Jahr 1 Monat
1997-09 - 1998-09

User- and Networkadministration

Junior Administrator
Junior Administrator

Participation in user and network administration of a mixed Unix and Windows environment

Linux AIX Windows 95 98
Bochum
1 Jahr 2 Monate
1996-08 - 1997-09

User- and Networkadministration

Junior Administrator
Junior Administrator

Participation in user and network administration of a mixed Unix, VMS and Windows environment

Linux IRIX HPUX Solaris AIX VMS Windows 3.x 95 NT 4.0
Bochum

Kompetenzen

Kompetenzen

Top-Skills

Active Directory Active Directory Domain Service Active Directory Federation Service Active Directory Design Active Directory Administration Windows Server

Betriebssysteme

MS-DOS
Windows

Datenkommunikation

Ethernet
Fax
Internet, Intranet
LAN, LAN Manager
NetBios
RFC
RPC
SMTP
SNMP
TCP/IP
Windows Netzwerk
X.400 X.25 X.225 X.75...

Einsatzorte

Einsatzorte

Österreich, Schweiz, Deutschland

Deutschland: bevorzugter Einsatzbereich D4 D5

möglich

Projekte

Projekte

4 Monate
2021-03 - 2021-06

Migration Certificate Services

Consultant
Consultant

 Design new CA

Build new CA

Migration of Certificate Templates

Enrollment new certificates

Windows Server 2016 Windows Server 2012
LowellServices GmbH
Essen, Ruhr
2 Jahre 11 Monate
2018-08 - 2021-06

Consolidation Active Directory Forests und Data Centres

Consultant
Consultant

Consolidation into one Forest

Migration users and computers

Concept and implementation basic services (DNS, AD, CA, ADFS) in the new data centre

Consolidation basic services into the new data centre

Windows Server 2016 Windows Server 2012
Lowell Services GmbH
Essen
2 Monate
2021-04 - 2021-05

Migration standalone AD FS server to new AD FS Farm

Consultant
Consultant
Migration standalone AD FS server to new  AD FS Farm
Windows Server 2016 Windows Server 2012
Essen, Ruhr
1 Jahr 2 Monate
2017-11 - 2018-12

Concept Identity und Authentification

Architect
Architect

Concept Identity

Concept Resource Forest

Concept Active Directory

Concept Active Directory Federation Services

Support during implementation

Windows Server 2016
Microsoft Deutschland GmbH
Münster, Westfalen
10 Monate
2017-11 - 2018-08

Verification Operating Concept, Concept Forest Consolidation, Coordination IT Service Provier

Consultant
Consultant

Verification Operating Concept

Concept Forest Consolidation

Coordination IT Service Provier

Windows Server 2012 R2 Windows Server 2016
Karstadt AG
Essen, Ruhr
5 Monate
2017-06 - 2017-10

Troubelshoot Active Directory and Verify Implementation

Consultant
Consultant

 Verify Active Directory functionality

Troubleshoot and streamline Active Directory and Windows Server

Strengthen Security (disable old unused protocols, implement tier model,

centralised event logging, ...

General Consulting

Windows Server 2016
Lebenshilfe Oberhausen gGmbh
Oberhausen (D-46049, D-46047, D-46117, D-46119, D-46149, D-46147, D-46045, D-46145)
1 Monat
2017-09 - 2017-09

Design and Implementation Active Directory Federation Services Farm

Consultant
Consultant

Design Active Directory Federation Services Farm

Design Active Directory Federation Services Proxy Farm

Implementation

Windows Server 2012 R2
ASB Informationstechnik GmbH
Datteln
1 Monat
2017-08 - 2017-08

Consulting

Consultant
Consultant

evaluate migration concept

expand migration concept

consulting IT integration of newly acciered companies

recommendation of security improvements

general consulting

Exchange 2013 Windows Server 2003 Windows Server 2008 Windows Server 2008 R2 Windows Server 2012 Windows Server 2012 R2
Haba Administration GmbH
Bad Rodach
1 Jahr
2016-05 - 2017-04

Plan, Build and Operation Active Directory Federation Services

Concept creation: Continous development of authentication strategy, update organisational guide lines, presentation and attunement in boards and panels, performance tests, concept creation of ADFS farm

Implementation: building of ADFS farm, monitoring concept, backup/restore concept, availability planning

Operations: monitoring, restore tests,analysys of authentication failures, expert monitoring of audits

implementation of federation trusts with service providers ( SuccessFactors, Office 365, ?)

Windows Server 2012 R2 Active Directory Federation Services
Evonik Industries AG
Marl, Westfalen
2 Jahre 11 Monate
2014-06 - 2017-04

Member of IT architecture board

Architect
Architect

Assessment of concepts

coordination of changes in IT landscape

support for implementation of new services

adjustment of services to new requirements

strategy recommendations

FedEx-Days for concept finding and binding decissions on cross service operational concepts

Marl, Westfalen
6 Jahre 7 Monate
2010-10 - 2017-04

Operation and development of Active Directory

Consultant
Consultant

Operation of the world wide Active Directory

Migration Windows 2003 to Windows Server 2008

Optimisation of AD structure

Backup/restore concepts and tests

monitoring

Automatisation Active Directory Sites & Services by authomatic subnet and site updates via authomatic uploads from QIP 

Carve Ins and Carve Outs

3rd level Support Active Directory

Consolidation

Implementation and adjustment of complience requirements

Reporting

Windows 2003 Windows 2008 Windows Server 2012 R2 QIP
Evonik Industries AG
Marl, Westfalen
1 Jahr 1 Monat
2016-03 - 2017-03

Support Migration Notes/SameTime/Sharepoint to Office 365

Architect, Consultant
Architect, Consultant

Authentication Concept: Coordination with Microsoft, definition and communication of the prerequisites to client/server operators, update of organisational guide lines 

Implementation: Expansion of ADFS farm with an ADFS Proxy farm, implementation authentication from the internet via Web Application Firewall, support client operators by implementing the prerequisites, monitoring concept, backup/restore concept, availability planning

Opperation: monitoring, restore tests, analysis of authenticatin errors

Windows Server 2012 R2 Active Directory Federation Services
Marl, Westfalen
7 Monate
2015-10 - 2016-04

Plan and build Windows Server 2012 R2 Active Directory Forest, preperation of migration

Architect
Architect

Conception: Update organisational guide lines, presentation and attunement in boards and panels, create forest concept

Implementation: build of forest, monitoring concept, backup/restore concept/availability planning

Operations: Monitoring, restore tests, implementation of application requirements, adjustment to organisational changes, support of application providers by implementing authentication requirements,  expert monitoring auf audits, securit and risk assessments

Windows Server 2012 R2 QIP
Evonik Industries AG
Marl, Westfalen
4 Jahre 6 Monate
2006-04 - 2010-09

Single Sign On

Software Engineer
Software Engineer

Kerberos based SSO to enable logon to SAP systems

Rollout to 3000 users in 8 locations in Germany

Windows 2003 SAP 4.6 SapGui 6.40
STEAG AG
Essen, Ruhr
4 Jahre 9 Monate
2006-01 - 2010-09

Migration Windows 2000 to Windows 2003

Software Engineer
Software Engineer

Konsolidation of 4 Windows 2000 domains to one Windows 2003 domain

Migration of computer accounts, user, server, data and applications

Windows 2000 Windows Server 2003 Windows XP
Steag AG
Essen, Ruhr
6 Jahre 4 Monate
2004-06 - 2010-09

Development and implementation of a network scan and print solution with smart card based authentication

Software Engineer
Software Engineer

Development of a company wide network scan and print solution on high volume multi function printers

Requirements: follow me print functionality, scan to user specific network folders, logon to the printers via smart card based certificates in crypto chip against Active Directory

Read the scan targets from Active Directory, list and retrieve the users specific print jobs from central print servers

At the time of the project, there was no solution offering that functionality, so large parts of the project consisted of intensive discussion with printer manufacturers to get them to implement respective functionality.

At the end of the project, one printer manufacturer was able to offer the requested functionality (exept SAP print jobs).

Windows XP Windows Server 2003
STEAG AG
Essen, Ruhr
11 Jahre 11 Monate
1998-11 - 2010-09

UHD: 1st, 2nd und 3rd Level Support, Administration and small projects

Software Engineer
Software Engineer

Administration of a NT 4 und Exchange environment

2nd Level Support Software

Migration from Windows NT 3.51 to Windows NT 4.0

Migration from Exchange 4.0 to Exchange 5.5

Implementation of remote work places

Windows NT 3.51 4.0 95 2000 2003 XP Exchange 4.0 5.5 MS Office Veritas Backup Exec 6.x 7.x 8.x 9 10 Filemaker 3.x 4.x 5.x 6 7 8 MS IE 4.x 6.x CompuServe 3.x Network Associates Groupshield 4.x Network Associates Netshield 4.x TrendMicro Norton Antivirus Netscape 4.x SMS Lotus Notes Domino 4.x Firewall 1 MS SNA-Server SAP R/3 Client Terminal-Emulationen (SDC 97 16bit 32bit 3270 ...) diverse Anwendungssoftware (Micro Grafix Designer Palm-Pilot Synchronisation (Hotsync Intellisync) Acrobat Reader
STEAG AG
Essen
1 Jahr 3 Monate
2004-10 - 2005-12

Migration NT 4, Exchange 5.5 in existing Windows 2003, Exchange 2003 forest

Software Engineer
Software Engineer

Migration of a  NT 4 Exchange 5.5 Environment (11 Sites) into one existing Windows 2003, Exchange 2003 forest

Windows NT 4 Exchange 5.5 Windows 2000 Windows Server 2003 Exchange 2003
STEAG AG
Essen
2 Jahre
2003-01 - 2004-12

Redesign and Expansion of Active Directory

Sofware Engineer
Sofware Engineer

Taking over a running migration project (migration of servers from NT 4 to Windows 2000 and migration of clients from NT 4 to Windows XP)

Redesign of Active Directory and DNS

Continuation of the OS rollout and user migration

redesign group policies

redesign AD rights structure

Windows NT 4 Windows 2000 Windows XP
STEAG AG
Essen, Ruhr
3 Jahre 1 Monat
2001-01 - 2004-01

Design, implementation and operation of a world wide mail system

Consultant
Consultant

Design, implementation and administration of a mail system for the European sites of a US high tec company

Windows NT 4 Exchange 5.5
Mattson Technology, Inc
Essen, Ruhr
3 Jahre
2001-01 - 2003-12

Consulting and Trouble-Shooting Client-Server and Exchange 5.5

Consultant
Consultant

Support for the German branche in all IT related questions

Troubleshouting Exchange 5.5,  Windows 98, NT 4, Windows 200, Windows XP Client-Server landscape

Support for Firewall 1 operations

LAN/WAN topics

Windows 98 Exchange 5.5 Windows NT 4 Windows 2000 Windows XP
NAGASE & CO., LTD.
Dusseldorf
6 Monate
2000-08 - 2001-01

Introduction of virus scan solution

Software Engineer
Software Engineer

Design and implementation of a corporate anti virus scan solution

Windows NT McAfee Windows 2000
STEAG AG
Essen, Ruhr
5 Monate
2000-08 - 2000-12

Administration Windows NT Cluster

Software Engineer
Software Engineer

Administration Windows NT Clusters as platform for an SQL Cluster

Windows NT 4.0
STEAG AG
Essen
6 Monate
1999-11 - 2000-04

Implementation of a mailsystem in a distributed Windows 2000 test environment

Software Engineer
Software Engineer

Implementation of a NT 4 Exchange 5.5 environment and a Windows 2000 Exchange 2000 environment 

Definition and test of migration scenarios and strategies

Windows NT 4.0 Exchange 5.5 Windows 2000
GE Compunet
Essen, Ruhr
2 Monate
1998-10 - 1998-11

Client-Rollout

Software Engineer
Software Engineer

Reinstallation of Workstations

Windows NT 4.0 MS Office 97 SAP R/3-Client
1 Jahr 1 Monat
1997-09 - 1998-09

User- and Networkadministration

Junior Administrator
Junior Administrator

Participation in user and network administration of a mixed Unix and Windows environment

Linux AIX Windows 95 98
Bochum
1 Jahr 2 Monate
1996-08 - 1997-09

User- and Networkadministration

Junior Administrator
Junior Administrator

Participation in user and network administration of a mixed Unix, VMS and Windows environment

Linux IRIX HPUX Solaris AIX VMS Windows 3.x 95 NT 4.0
Bochum

Kompetenzen

Kompetenzen

Top-Skills

Active Directory Active Directory Domain Service Active Directory Federation Service Active Directory Design Active Directory Administration Windows Server

Betriebssysteme

MS-DOS
Windows

Datenkommunikation

Ethernet
Fax
Internet, Intranet
LAN, LAN Manager
NetBios
RFC
RPC
SMTP
SNMP
TCP/IP
Windows Netzwerk
X.400 X.25 X.225 X.75...

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