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Marco Patzelt

Principal IT Consultant & Technical Project Manager

Work experience


Principal IT Consultant & technical Project Manager


Technology Manager

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

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

Siemens IT Solutions and Services

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


Senior IT Consultant

Siemens AG & SINITEC

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



Siemens Nixdorf

IT Trainee


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

Consulting and Architecting: Microsoft Cloud Services - O365 and Azure, Microsoft On-Premise Products - Windows Server 2000-2016, Active Directory, AD FS, Exchange 5.5 – 2016, OCS 2007, Lync 2010-2013, Skype for Business, SharePoint 2007/2010/2013/2016, System Center Products 2012 (R2)-2016 (SCCM, SCSM, SCOM, SCDPM, SCVMM), Hyper-V 2008 R2, 2012 (R2) and 2016, 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 the supply of complex IT solutions for the support of his business processes.

Engineering: Migration to O365 and Azure, Implementation of Hybrid configurations, Implementation of Microsoft Products (Windows Server, Active Directory, Exchange 5.5 - 2016, Lync 2013 and Skype for Business, SharePoint 2010/2013/2016, System Center Products 2012 (R2) and 2016 (SCCM, SCSM, SCOM, SCDPM, SCVMM), Hyper-V 2012 R2 and 2016.

Project Experience


OneDrive Migration


Support customer during a Office 365 migration from File Share to OneDrive for Business


Reveiw O365 Tenant


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


Skype for Business Migration to Skype for Business Online


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


Exchange Migration to Exchange Online


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


Office 365 Consulting


Advice and support customer during a Office 365 migration (Exchange, Intune and SharePoint)


Lync and Alcatel OTMS Integration

ver.di - Vereinte Dienstleistungsgewerkschaft

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


Skype for Business Consulting

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


Skype for Business Migration


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.


Skype for Business Consulting

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.


SharePoint and ADFS Consulting

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


Microsoft Exam Developing


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


Skype for Business Consulting

German automobile manufacture

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


Skype for Business Migration

German automobile manufacture

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


ADFS Design

ver.di - Vereinte Dienstleistungsgewerkschaft

Design and Implement AD FS for central login solution

Architect, Consultant


Infrastructure Review

Amadeus Data Processing

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

Lead Consultant


Infrastructure Migration

Molkerei Gropper GmbH

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

Senior Consultant, Architect, Engineer


SharePoint Consulting


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


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


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

Consultant, Architect, Engineer


SCCM and Intune Consulting


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


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

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

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

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

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

Microsoft / Elabs AG

Member of the Exchange 2013 / 2016 TAP program

Lead Engineer, Lead Consultant


Virtual Desktop Design and Deployment


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 

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

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

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

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

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

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

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

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


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

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

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

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



Design and implementation of a new Microsoft infrastructure

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

GETRAG Ford Transmission

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



SharePoint Consulting


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



Citrix Implementation


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

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

Consultant, Engineer


Email Migration

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

Siemens PG

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

Technical Consultant and Engineer


Exchange Consulting


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



Email Migration

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

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

Talanx Group

Planning and execution Exchange DataCenter move



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




65. Mittelschule, Rosenowstrasse 60 Leipzig



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