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Work experience

Principal IT Consultant & technical Project Manager

2017Present
Freelancer

Technology Manager

20132017
Elabs AG

Leading the technical departments (Consulting, Operations, Development, Service Transition) incl. people management

Responsible for all global technical decisions in terms of internal IT as well as customer projects and infrastructure

Consulting Manager

20102013
Elabs AG

Managing the consulting department, planning and implement the Elabs AG hosting platform incl. all infrastructure services, consult customers on-site regarding it infrastructure topics 

Senior IT Consultant

20052010
Siemens IT Solutions and Services

My responsibilities include IT infrastructure consulting and architecting for international enterprise customers 

Senior IT Consultant

19982005
Siemens AG & SINITEC

My responsibilities include IT infrastructure consulting and architecture for International enterprise customers

Trainee

19951998
Siemens Nixdorf

IT Trainee

Portfolio

Management: Technology Manager and Consulting Manager, leading complete company IT operation and development departments


Consulting and Architecting:

Microsoft Cloud Services - Microsoft 365 (Teams, Exchange Online, SharePoint Online), Entra (Entra  ID, Conditional Access,...) Device Management (Intune, MDM, MAM, AutoPilot),  Hybrid Deployments,...), Azure Landing Zone and Services, Security and Compliance (Retention, Labeling. Purview, Defender XDR)

Microsoft On-Premise Products - Windows Server, Active Directory, AD FS, Exchange Server, Skype for Business, SharePoint Server, System Center Products , Hyper-V , Security, Network (Cisco), Storage (Backup Solution, SAN, iSCSI),

Consolidation Soft skills: Workshop leader, Presentation leader, Consulting regarding technical and management topics. As a Principal Consultant I advise customers for the choice, the operation and supply of complex IT solutions for the support of his business processes.

Engineering: Migration to M365 and Azure, Implementation of Hybrid configurations, Implementation of Microsoft Products (Windows Server, Active Directory, Exchange Server, Skype for Business, SharePoint Server, System Center Products, Hyper-V , Hybrid Deployments (AAD Connect, Exchange Online Hybrid,...).

Project Experience

M365 Consulting

12/2023Present
Union Betriebs GmbH (CDU)

Support the customer on his journey to M365, Design and implement new M365 tenant design including security, software deployment, device management

M365 Consulting

12/2023Present
Deutsche Wildtierstiftung

Design migration concept and support during migration from Microsoft On-Prem and Infrastructure to M365

M365 Consulting

05/2022Present
Apobank

Support the customer on his journey to M365 incl. bank specific security and compliance requirements

Messaging Architect

01/2022Present
Siemens AG

Support during transition of internal and external application towards a new mail gateway. Support during optimizing SPF/DKIM/DMARC policies, consult during implementation of a management application for the mail gateway

Consulting Cloud Strategy

11/2018Present
ver.di - Vereinte Dienstleistungsgewerkschaft

Workshop regarding different cloud technologies, migration scenarios for current back office applications (Exchange, SharePoint, Skype for Business), usage of cloud compute resources (Azure) incl. Hybrid scenarios, …

Enterprise Architect and Consultant

09/2020Present
BWI GmbH - German Army

Support in the are of solution design. The global project is about implementation of Exchange and SharePoint incl. Migration from Lotus Notes

Microsoft 365 Consulting

04/2018Present
NORMA Group

Advice and support customer during a Office 365 migration (Exchange, Intune and SharePoint, Conditional Access, Azure AD, Azure)

M365 Consulting (Tenant-to-Tenant migration)

04/202206/2024
Munich Re

Design migration concept, implement Tenant to Tenant migration solution based on Quest ODM, execute the migration and support customer during non-ODM related topics like domain move

Exchange Migration Support

11/202206/2023
Jahr Media GmbH

Design migration concept and support during migration from Microsoft Exchange On-Prem and IMAP servers to Exchange Online incl. Reddoxx Archive migration

Exchange Online Consulting

07/202204/2024
HiPP GmbH & Co. Vertriebs KG

Design migration concept for Exchange On-Prem to Exchange Online Migration, support during Pilot migration

Exchange Migration Support

11/202203/2023
Contabo GmbH

Design migration concept and support during migration from Microsoft Exchange On-Prem and IMAP servers to Exchange Online

Security Consulting

09/202203/2023
Military Customer

Design and implement Anti-Virus solution for Microsoft Exchange On-Prem infrastructure

M365 Consulting

11/202212/2023
Siemens Energy

Support during Tenant to Tenant and On-Prem to Exchange Online migrations in several Carve-Outs

M365 Consulting

03/202202/2024
Mobau

Consulting in regards to M365 implementation and migration incl. Exchange Online, Teams, security and compliance topics etc.

Consulting M365

03/202205/2023
Gruner + Jahr

Support during M365 Exchange Online Tenant to Tenant migration

Enterprise Architect and Consultant

03/202107/2024
Kiel Seating

Support the customer during an IT consolidation project to harmonize different Active Directory forests, migrate multiple O365 tenants into a new tenant incl. design of Azure AD synchronization for different domains. Additionally the migration of Lotus Notes Domino to Exchange Online is part of the project.

Consulting AD / Azure AD Migration / Exchange Online

02/201912/2023
zooPlus

Support the customer during an Active Directory / Azure AD project incl. AD cleanup, features like password less authentication, development attribute catalog, Exchange Online routing design

M365 Consulting

03/202204/2022
Siemens AG

Support during setup of new M365 tenant for Siemens learning platform

M365 Consulting

02/202202/2022
Kölner Pensionskasse

Workshop in regards to M365 landscape

Skype for Business / Teams Consulting

01/202205/2022
Meierhofer AG

Support during Skype for Business to Teams migration incl. enterprise voice

Skype for Business Consulting

10/202112/2021
Allgeier Experts SE

Support implementing S4B 2019 On-Prem

Skype for Business / Teams Consulting

10/202101/2022
Rösler Oberflächentechnik GmbH

Support implementing Teams POC incl. S4B Hybrid and Enterprice Voice via AudioCodes SBC

M365 Consulting

09/202103/2022
Rinntech-Metriwerk GmbH & Co. KG

Support during implementing M365 and migration Exchange On-Prem to Exchange Online

M365 Consulting

08/202104/2022
Zentralverband des Deutschen Handwerks

Support in regards to M365 topics like Exchange Hybrid and Teams

Implementing Always On VPN

07/202105/2022
Basler & Hofmann AG

Support customer to implement Windows 10/11 Always On VPN

Teams Enterprise Voice Consulting

07/202111/2021
Hessischer Rundfunk

Consulting in regards to implementing Teams Direct Routing and migration from on-prem PBX to teams enterprise voice

Skype for Business Consulting

06/202101/2022
Apobank

Support in regards to implementing a video consulting solution based on Skype for Business

M365 Security and Compliance Consulting

06/202107/2021
IHK Offenbach

Consulting in regards to M365 security and compliance features like labeling, conditional access, etc.

M365 Consulting

06/202103/2022
treefin GmbH / W&W Interaction Solutions GmbH

Support during implementing M365 services incl. device management and security 

Skype for Business / Teams Consulting

06/202107/2021
Caritas

Support implementing S4B/Teams Hybrid and developing custom migration scripts

Microsoft Exchange Architect and Consultant

03/202103/2022
Transgourmet

Support the customer during an Exchange migration to Exchange Online in a resource forest deployment. Part of the support is the development of migration scripts to support the migration strategy.

Skype for Business / Teams Consulting

02/202112/2021
Stadtwerke München

Support implementing S4B/Teams Hybrid and developing custom migration scripts and Enterprise Voice

Architect and Consultant

12/202006/2021
Deutsche Finance

Consulting and implementation of device management solutions based on Intune and conditional access 

Microsoft Teams Consulting

10/202004/2021
Corpuls

Support the customer during the enterprise voice migration from Skype for Business server to Microsoft Teams incl. AudioCodes SBC and coexistence 

Messaging Architect

09/202012/2021
Siemens AG

Optimization / reorganization internal and public email infrastructure (Email routing, SPAM/Malware protection, Email address management)

Skype for Business Consulting

05/202007/2021
Wirthwein AG

Skype for Business consulting incl. enterprise voice topics

IT Carve-Out

05/202010/2021
Guardian Automotive Glass

Support the project as an architect and consultant to migrate parts of an international company to a dedicated infrastructure incl. migration to Office 365 / Azure AD in a hybrid deployment including security services like conditional access, intune management, etc.

IT Carve-Out

12/201904/2020
Alu Iberica

Support the project as an architect and consultant to migrate parts of an international company to a dedicated infrastructure incl. migration to Office 365 / Azure AD in a hybrid deployment including security services like conditional access, intune management, etc.

Skype for Business and Teams Consulting

12/201904/2020
Bionorica

Migrate Lync 2010 to Skype for Business 2015, Implement Hybrid with Skype for Business Online, advice on migration to Skype for Business Online and Microsoft Teams, Integrate new locations incl. enterprise voice via local SBCs.

Microsoft Teams Migration

11/201902/2020
Harmsen Utescher

Implement Direct Route configuration based on AudioCodes SBC  and migrate all users to Teams incl. Enterprise Voice.

Intune and Labeling Consulting

11/201901/2020
Dehn GmbH

Advice on implementing O365 Labeling features. Review of the current intune configuration and advice in reconfiguration and optimization.

Consulting Skype for Business 2019 and Exchange 2016

04/201908/2020
ApoBank

Support the customer project as an architect and consultant, Implement AudioCodes SBCs, Skype for Business Enterprise Voice configuration, Design and implement Hybrid configuration between old PBX and Skype for Business incl. SIP trunk routing to the public phone system. 

Support the customer project as an architect and consultant for Microsoft Exchange implementation and migration from Lotus Notes to Exchange, address encryption requirements and global signature management.

Consulting O365 Migration

02/201912/2021
Gruner + Jahr

Technical architect during a Exchange 2010/2016 to Exchange Online migration

Email Migration GMail to Exchange Online

01/201910/2019
NORMA Group

Support the customer during migration project - GMail to Exchange Online

Skype for Business Migration

11/201706/2020
KSB

Support migration from various old PBX installations to a central Skype for Business infrastructure with Enterprise Voice for locations in Germany and France. Additionally to the central SfB deployment each branch site got a own SBA based on AudioCodes SBC and AudioCodes analog gateways to integrate existing analog phones and fax machines.

SharePoint Migration incl. Workflow Manager

07/201907/2019
ver.di - Vereinte Dienstleistungsgewerkschaft

Migrate SharePoint 2013 incl. Workflow Manager 1.0 to SharePoint 2019

Consulting O365 Migration

02/201906/2019
BPD Immobilienentwicklung

Technical architect during a Exchange 2010 to Exchange Online migration

OneDrive Migration

09/201806/2019
SMA

Support customer during a Office 365 migration from File Share to OneDrive for Business via SharePoint migration tool and ShareGate

Review O365 Tenant

09/201810/2018
Otiker

Reveiw O365 tenant (best practice analyses, security review, AAD connect review)

Skype for Business Migration to Skype for Business Online

09/201812/2018
SMA

Support customer during a Office 365 migration from Lync 2013 / SfB 2015 to SfB Online

Exchange Migration to Exchange Online

04/201812/2018
SMA

Support customer during a Office 365 migration from Exchange 2010 to Exchange Online

Lync and Alcatel OTMS Integration

01/201802/2018
ver.di - Vereinte Dienstleistungsgewerkschaft

Support during PoC to combine Lync 2013 with the Alcatel OTMS solution.

Skype for Business Consulting

12/201712/2017
Willy Bogner GmbH & Co. Kommanditgesellschaft auf Aktien

Advice customer regarding integration and possible migration from current PBX to SfB enterprise Voice and integration of Cisco video room solutions into the Skype for Business infrastructure

Exchange Consulting

07/201711/2017
Talanx Gruppe

Planning and execution Exchange DataCenter move

Skype for Business Consulting

05/201712/2019
BWI GmbH - Bundeswehr IT

Support the customer in the planning and POC phase to implement Skype for Business including conference and enterprise voice. Additionally the service development incl. full migration of all users from Cisco Call Manager to Skype for Business telephony as well as coexistence between Skype for Business and Cisco video room solutions are part of the project.

Microsoft Exam Developing

2008Present
MicrosoftLearning

Attending Microsoft Exam development for different products like Exchange, Hyper-V, System Center and other infrastructure products

SharePoint and ADFS Consulting

02/201705/2018
ver.di Vereinte Dienstleistungsgewerkschaft

Consulting and design ADFS Infrastructure including connectivity to other web services via SAML or OPENID Connect; Implement ADFS Auth for SharePoint with external publishing; Troubleshooting and optimizing SharePoint Infrastructure

Skype for Business Consulting

03/201710/2017
German automobile manufacture

Support the customer in the planning and POC phase to implement Skype for Business enterprise voice

Skype for Business Migration

02/201710/2017
German automobile manufacture

Act as migration lead during a world wide Skype for Business enterprise voice rollout

ADFS Design

20162016
ver.di - Vereinte Dienstleistungsgewerkschaft

Design and Implement AD FS for central login solution

Architect, Consultant

Infrastructure Review

20162016
Amadeus Data Processing

XenDesktop Infrastructure review (Structure, Processes, Communication, High Availability, Network, etc.)

Lead Consultant

Infrastructure Migration

20162017
Molkerei Gropper GmbH

Migration of the Exchange and Active Directory Infrastructure to 2016 Build including Symantec Enterprise Vault

Senior Consultant, Architect, Engineer

SharePoint Consulting

20162016
GfK

Support to design a new Intranet based on SharePoint 2013, Deployment of Staging-, Test- and Production SharePoint Farm. Deployment is based one PowerShell scripting

Senior Consultant, Engineer 

Lync / Skype for Business Migration

20162016
GfK


Migration of more than 20k users from Lync 2010 to Skype for Business, Implementing Voice and Video Conferencing Service incl. Mobile Access, Conference Dial-In and connectivity to PBX systems

Senior Consultant

Exchange Migration

20152016
GfK

Migration of more than 20k mailboxes from Exchange 2007 to 2013

Consultant, Architect, Engineer

SCCM and Intune Consulting

20152015
Adidas

Designing a SCCM 201x Infrastructure for managing public area devices in retail stores. Also implement Intune as a short term solution until SCCM is ready

Architect and Consultant

Consulting and Operations

20122017
NORMA Group

Operate and extend the the Collaboration Infrastructure incl. Exchange 2010 / 2016, SharePoint 2013 and Lync 2013

Lead Architect, Lead Consultant, Manager of Operations

Exchange and SharePoint Migration

20142016
Elabs AG

Migration of Exchange 2013 to Exchange 2016, SharePoint 2013 to SharePoint 2016, Lync 2013 to Skype for Business

Architect, Consultant, Engineer

vNext Upgrade

20142016
Elabs AG

Start designing and piloting Windows vNext as the next Windows version for the Elabs AG managed service provider infrastructure, member of the Microsoft CCEP Programm (Windows and System Center)

Architect, Consultant, Project Lead 

Infrastructure Upgrade

20122014
ver.di - Vereinte Dienstleistungsgewerkschaft

Upgrade the current infrastructure to 2012/2013 build of Microsoft infrastructure products incl. Windows 2012 R2, Windows 8 (8.1), Exchange 2013, Lync 2013, SharePoint 2013, System Center 2012 products etc.  based on virtualized server (Hyper-V, ESXi), Creating Concepts, build up test environment, migrate data, rollout coordination for 4000 users

Project Lead, Design Lead, Lead Engineer

Update Managed Service Provider Infrastructure

20122014
Elabs AG

Planning and update of the Elabs AG infrastructure to the newest builds (System Center 2012 R2, Windows 2012 R2, SQL, Exchange 2013, SharePoint 2013 etc.)

Lead Consultant, Lead Architect, Lead Project Manager

Exchange 2013 / 2016 TAP

20112017
Microsoft / Elabs AG

Member of the Exchange 2013 / 2016 TAP program

Lead Engineer, Lead Consultant

Virtual Desktop Design and Deployment

20112013
Amadeus

Design and deployment of a virtual desktop infrastructure for a client. Target count of virtual machines will be 50.000 and more if the project will be finalized. Currently we are doing the evaluation together with the customer. The desktops will be based on Hyper-V and Windows 7 images. One of the challenges is the correct licensing

Project Lead, Design Lead

Design and Implementation Managed Service Provider Infrastructure

20102017
Elabs AG

Designed and implementation of a service infrastructure for a managed service provider company based on Hyper-V 2008 R2, managed via SCVMM. The environment does include multi-node Hyper-V Clusters and single Hyper-V nodes, hundreds of virtual servers incl. virtual clusters with iSCSI connection. The environment is monitored by SCOM 2007 R2 and the main backup solution is SC DPM 2010. Also the migration from
existing VMWare servers to Hyper-V via SCVMM is part of the project.

Design and Implementation, Project Management

Virtual Web Server Farm

20102010
Elabs AG

Implementation of thousands of web servers based on Hyper-V 2008 R2. Setup based on round about 300
Servers per Hyper-V host including PowerShell script automation

Senior Consultant and Engineer

Infrastructure Consulting

20052017
Different Customers

Create infrastructure design and plan upgrades for several other customers like Wrigleys, Deutsche Bank, Audi, MAGNA, Unilever Best Foods,...

Siemens Workplace Architecting Team

20052010
Siemens AG

Developing Design Guides for Siemens internally and other enterprise customers based on new Microsoft
Technologies. Attending in TAP programs (Office/SharePoint 2010 TAP, Exchange 2010 TAP and TAP´s regarding System Center, Windows, etc.)

Exchange Team Lead – Responsible for global Exchange Design at Siemens AG

SharePoint Consulting

20092010
BBC London

Consulting regarding DMS, Collaboration and Application platform based on SharePoint 2007 (later SharePoint 2010) for BBC in London

Senior Consultant

SharePoint implementation and migration

20092009
German Army

Consulting regarding DMS and CMS implementation based on SharePoint 2007 incl. development of
customized applications and Workflows, Migration from Lotus Notes to SharePoint with Quest Migration Tool

Senior Consultant, Technical Project Manager

Exchange Migration

20082009
German Army

Migration of a few thousands mailboxes from Lotus Notes to Exchange 2007

Technical Project Manager, Lead Consultant, Architect, Lead Engineer

Migration from Windows/Exchange 2000 to 2003

20072009
Justice Thuringia

Planning and support during the migration of a few thousand users and mailboxes in a complex infrastructure; Windows and Exchange Migration is part of the project as well as the migration from db2 to
oracle databases

Lead Consultant

Exchange Migration

20082008
ATLAS Terex

Migration of a few hundred mailboxes from Exchange 5.5 to Exchange 2003

Planning and executing of the whole migration including SAP connector and Blackberry 

Senior Consultant and Engineer

OCS 2007 Integration

20072008
Allianz AG

As a consultant for Office Communication Server I support Microsoft during the test and implementation phase for the worldwide largest planned OCS installation at this time; project was focusing on IM, conferencing
as well as connection to current PBX infrastructure

Senior Comnsultant

Groupwise Migration

20072007
DIN e.V.

Migration of roundabout 1000 Mailboxes from a few Groupwise server to a centralized Exchange 2003 environment.

Senior Consultant and Architect

Implementation of Exchange 2007 and OCS 2007

20072007

Planning and implementation of Exchange 2007 and OCS 2007. Migration of the first few Mailboxes. 2nd level support

Consultant

Design and implementation of a new Microsoft infrastructure

20062008
ver.di - Vereinte Dienstleistungsgewerkschaft

For one of the largest labor unions of the world with 2,5 million members a design for a new Microsoft based infrastructure was made and implemented

Technology: Windows 2003 Server, Windows XP, Office 2007, SharePoint 2007, SCOM 2007, ISA 2006 etc.

Technical Project Manager - coordinating 8 subprojects
Lead Architect and Consultant 

Network design - supplier access

20062006
GETRAG Ford Transmission

design for company data exchange between getrag and gft (ford internal
network)

Consultant

SharePoint Consulting

20072008
Airbus

Consulting regarding DMS system based on SharePoint for parts of Airbus Europe

Consultant

Citrix Implementation

20062008
Airbus

Implementation of a Citrix Server farm

Decision memo, conception implementation
Locations: Nordenham (Germany), Hamburg (Germany), Varell (Germany), Bremen (Germany)

Consultant, System Architect, Engineer

Exchange Migration

20062006

Migration of 8500 Mailboxes from Exchange 5.5 to Exchange 2003 with ADC incl. concept construction

Consultant, Engineer

Email Migration

20042006
Siemens PG

Migration of 10.000 Mailboxes Lotus Notes to Exchange 2003 Migration tools: Lotus Notes Migration Wizard (Microsoft) and additional Tools which are
developed only for the project.

Responsible for migration concept and mail migration (part of a 4 men
migration team)

Locations: Lincoln (UK), Finspong (Sweden), Brno (CZ) and Germany

Technical Consultant and Engineer

Email Migration

20042006
Siemens PG

email migration from Exchange 5.5 to Exchange 2003 with Aelita/Quest Exchange Migration Wizard

Technical Consultant and Engineer

Exchange Consulting

20052005
SAP

Design Review and Performance Analyses at SAP Exchange Environment
Evaluation SAP R3 <-> Exchange Connector

Consultant

Email Migration

20052006
Siemens MED and Siemens I&S

Exchange Migration Exchange 5.5 to Exchange 2003 Volume: 30.000 Mailboxes Multi Site Environment, Multi Domain Environment Migration with Quest / Aelita Exchange Migration Wizard

Technical Consultant and Engineer

Infrastructure Implementation

20042004
District Groß-Gerau

Building a Datacenter infrastructure for the district Groß Gerau to connect
all schools from the district to a Citrix Metaframe server farm (
25 terminal Server - Blade technology) with Novell NDS as directory


Technical Project Lead
Lead Engineer

Exchange Consulting

07/201711/2017
Talanx Group

Planning and execution Exchange DataCenter move

Rollout

19991999
Gothaer Versicherung

Rollout from Server and Client on all german location of Gothaer Insurance

Team lead of an implementation team for clients and server, contact person suburb, transportation management, escalation management, technical reasonable suburb

Education

10th

19861995
65. Mittelschule, Rosenowstrasse 60 Leipzig

Languages

german

Mother Tongue

english

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