Markus Halbedel - Exchange Architect

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Kaufbeuren, Germany

Experience

Feb 2023 - Aug 2023

7 months

Germany

Exchange Architect

T-Systems Multimedia Solutions GmbH

Designed the rollout of advanced email security by marking externally received emails.
Developed a concept for accessing Exchange resources for users, administrators, and applications via a standardized Microsoft Graph API.
Analyzed and assessed the existing Exchange antivirus/antispam solution.
Planned, designed, and rolled out new Exchange features company-wide, such as dynamic distribution groups.
Methods, tools, and technologies:
Microsoft Active Directory
Microsoft Azure Active Directory
Microsoft 365
Microsoft Exchange Online
Microsoft Exchange 2019
Microsoft PowerShell
Microsoft Graph
Email security
Environment: International hybrid Exchange infrastructure with approx. 165,000 mailboxes (15,000 on-premises / 150,000 online).

Jan 2023 - Aug 2023

8 months

Germany

Senior Consultant

Balluff GmbH

Analyzed and designed the migration of on-premises email systems to a private cloud and Microsoft 365 (Exchange Online).
Replaced the existing on-premises SMTP gateway with a cloud solution.
Migrated the existing email archiving system to a cloud solution.
Planned, designed, and rolled out new email functions, such as signature software.
Methods, tools, and technologies:
Microsoft Active Directory
Microsoft Azure Active Directory
Microsoft 365
Microsoft Exchange Online
Microsoft Exchange 2016
Microsoft PowerShell
Email security
Defender for Office
Environment: International hybrid Exchange infrastructure with approx. 3,000 mailboxes.

Nov 2021 - Jul 2022

9 months

Germany

Senior Consultant

Simon Hegele GmbH

Planned and piloted a mail migration from Exchange 2016 to Exchange Online / M365.
Planned and implemented security and compliance settings in M365.
Consolidated Active Directory 2016, managed Azure Active Directory.
Methods, tools, and technologies:
Microsoft Active Directory
Microsoft Azure Active Directory / MS Office 365 / Exchange Online
MS AAD Connect / PowerShell scripts
M365 Information Protection
Data Loss Prevention
Conditional Access
MFA
Compliance
Environment: International IT environment with approx. 3,000 users.

Sep 2020 - Jun 2021

10 months

Germany

Hybrid

Cloud Consultant

Rathgeber GmbH & Co. KG

Planned and built a hybrid Active Directory for MS Intune.
Planned and built an MDM environment based on Microsoft Azure Intune (Microsoft Endpoint Manager).
Created Intune configuration profiles.
Configured Conditional Access and multi-factor authentication.
Set up Intune Autopilot and modern app management through Intune.
Integrated Windows Virtual Desktop for business access.
Methods, tools, and technologies:
Microsoft Endpoint Manager (Intune)
Microsoft Windows Virtual Desktop
MS Office 365 / Exchange Online
Azure AD Connect
MS Azure (PaaS, IaaS, Azure Active Directory)
PowerShell scripts
Environment: International IT environment with approx. 300 users.

Aug 2020 - Feb 2023

2 years 7 months

Germany

Senior Consultant

Dachser SE

Planned and piloted a mail migration from Lotus Notes to Exchange Online / M365.
Planned and piloted a Microsoft Teams rollout / Microsoft 365.
Planned and implemented security and compliance settings in M365.
Managed Active Directory 2016 and Azure Active Directory.
Identity management: role concepts.
Methods, tools, and technologies:
Microsoft Active Directory
Microsoft Azure Active Directory / MS Office 365 / Exchange Online
MS AAD Connect / MS ADFS
PowerShell scripts
M365 Information Protection
Data Loss Prevention
Conditional Access
MFA
Compliance
Environment: International IT environment with approx. 30,000 users.

Nov 2019 - May 2020

7 months

Liechtenstein

Senior Cloud Consultant / Architect

Hoval AG - Lichtenstein

Supported the Exchange Online transformation.
Designed and managed Advanced Threat Protection (ATP).
Managed spam with SPF / DKIM / DMARC.
Implemented email compliance with Exchange Online.
Planned migration of Microsoft Exchange / Exchange Online.
Configured and migrated email-dependent services for Exchange Online.
Methods, tools, and technologies:
MS Office 365 / Exchange Online
Azure AD Connect
Microsoft Azure Active Directory
PowerShell scripts
Environment: International IT environment with approx. 2,000 users.

Sep 2019 - Jan 2020

5 months

Salzburg, Austria

Senior Consultant / Architect

Uni Mozarteum Salzburg

Analyzed the existing IT infrastructure.
Designed the transformation from a Micro Focus environment to a Microsoft world.
Planned migration of Micro Focus eDirectory to Microsoft Active Directory & Azure AD.
Planned migration of Micro Focus GroupWise to Microsoft Exchange / Exchange Online.
Introduced O365 and Azure including Azure services.
Planned an MDM environment based on Microsoft Azure Intune.
Methods, tools, and technologies:
MS Office 365 / Exchange Online
Azure AD Connect
Microsoft Azure Intune
MS Azure (PaaS, IaaS, Azure Active Directory)
Migration tools for Micro Focus GroupWise
PowerShell scripts
Environment: IT environment with approx. 3,000 users.

Apr 2019 - Aug 2019

5 months

Germany

Senior Consultant

Siteco Beleuchtungstechnik GmbH

Supported the carve-out from Osram parent company into a standalone IT infrastructure.
Designed and prototyped an Office 365 tenant-to-tenant migration.
Planned and built a new internal PKI infrastructure.
Planned and built an MDM environment based on Microsoft Azure Intune.
Built a Microsoft Exchange hybrid environment.
Built a patch management solution based on Microsoft WSUS and SCCM.
Integrated Windows Virtual Desktop for business access.
Methods, tools, and technologies:
Microsoft Windows Virtual Desktop
Microsoft Exchange 2016
MS Office 365 / Exchange Online
Azure AD Connect
Microsoft Azure Intune
MS Azure (PaaS, IaaS, Azure Active Directory)
PowerShell scripts
Environment: International IT environment with approx. 2,000 users.

Jul 2018 - Feb 2019

8 months

Germany

Senior Consultant

MediaMarktSaturn

Analyzed the existing IT infrastructure to plan an international carve-out.
Planned and drafted a future Microsoft Active Directory infrastructure.
Planned and drafted a migration strategy for the carve-out.
Methods, tools, and technologies:
Agile project management
Microsoft Active Directory
Exchange 2016
MS Office 365 / Exchange Online
MS AAD Connect / Azure AD / MS ADFS
Quest Migration Manager
Various internal applications
Environment: International IT infrastructure with approx. 60,000 users/clients, 5,000 servers, 1,200 applications, 1,200 national and international sites.

Jan 2018 - Jul 2019

1 year 7 months

Germany

Senior Consultant

First Attribute AG

Office 365 (Exchange Online) designs and migrations.
Exchange 2016 designs and migrations.
Active Directory, Azure AD identity management.
Methods, tools, and technologies:
Microsoft Exchange 2010–2016
MS Office 365 / Exchange Online
MS AAD Connect / MS ADFS
PowerShell scripts
Environment: Various international SMEs and enterprises.

Oct 2016 - Dec 2017

1 year 3 months

Germany

Exchange 2016 Architect

Bilfinger Global IT GmbH

Office 365 (Exchange Online) designs and migrations.
Exchange 2016 designs and migrations.
Automation with Desired State Configuration (DSC).
Active Directory ADFS & AAD Connect.
Methods, tools, and technologies:
Microsoft Exchange 2010–2016
MS Office 365 / Exchange Online
MS AAD Connect / DirSync / MS ADFS
PowerShell scripts
Desired State Configuration
Environment: International Exchange 2010 infrastructure in a resource forest with 60 connected account forests. 55,000 mailboxes.

May 2016 - Sep 2016

5 months

Switzerland

Senior Consultant

Microsoft Schweiz GmbH

Office 365 (Exchange Online) designs and migrations.
ADFS & AAD Connect.
Microsoft cloud computing with Azure.
Exchange designs and migrations.
Active Directory.
Methods, tools, and technologies:
Microsoft Exchange 2010–2016
MS Office 365 / Exchange Online
MS AAD Connect / DirSync / MS AD FS
MS Azure (PaaS, IaaS, Azure Active Directory)
PowerShell scripts.

Apr 2015 - Mar 2016

1 year

Switzerland

Senior System Engineer / Consultant

Baggenstos AG

Office 365 (Exchange Online) designs and migrations.
ADFS & DirSync.
Microsoft cloud computing with Azure.
Microsoft Exchange 2016 TAP program.
Exchange 2013 designs and migrations.
Active Directory & system management.
Built, configured, and operated VMware infrastructures.
Built, configured, and operated Hyper-V infrastructures.
Methods, tools, and technologies:
Microsoft Exchange 2010–2016
MS Azure (PaaS, IaaS, Azure Active Directory)
VMware ESXi 5.0–6.0
Hyper-V 2012 R2
PowerShell scripts.

Apr 2013 - Dec 2014

1 year 9 months

Switzerland

Senior Consultant / Senior Systems Engineer

Axept Webcall AG (Swisscom AG)

GroupWise migrations to Exchange 2013 with Dell Coexistence & Migration Manager.
Inter- and intra-forest email migrations to Exchange 2013.
Connected subsystems to Exchange 2013 (TMG, BlackBerry, email archive, Lync).
Exchange 2013 enterprise infrastructure designs.
Remote access solutions for Exchange 2013.
Office 365 designs and migrations.
Swisscom – Managed Communications & Collaboration.
Methods, tools, and technologies:
Microsoft Exchange 2010/2013
Dell Coexistence Manager for GroupWise
Dell Migrator for GroupWise
Dell Migrator for Exchange
Sophos UTM
PowerShell scripts
Excel.

Dec 2011 - Mar 2013

1 year 4 months

Zürich, Switzerland

Infrastructure Specialist / Senior Systems Engineer

SCOR SE - Zürich

Cross-forest integration/migrations from existing Exchange 2003/2007 environments into a single Exchange 2010 organization.
Active Directory and Exchange coexistence with Quest Collaboration Manager.
Exchange administration and infrastructure designs.
Connected subsystems to Exchange 2010.
GOOD for Enterprise, BlackBerry, email archive.
GOOD Dynamics.
Methods, tools, and technologies:
Microsoft Exchange 2007/2010
Quest Collaboration Manager for Exchange
GOOD for Enterprise
GOOD Dynamics
PowerShell scripts
Excel.

Mar 2010 - Nov 2011

1 year 9 months

Switzerland

Senior Consultant / Senior Systems Engineer

Axept AG - Schweiz

Various email migrations to Exchange 2010.
Connected subsystems to Exchange 2010 (TMG, BlackBerry, email archive, Lync/OCS).
Windows 2008 R2 designs/installs.
Exchange 2010 enterprise infrastructure designs.
TMG designs/installs.
Methods, tools, and technologies:
Microsoft Exchange 2010
Quest Migration Manager for Exchange
Windows Server 2008 / 2008 R2
Microsoft TMG 2010
PowerShell scripts.

Jul 2009 - Feb 2011

1 year 8 months

Zürich, Switzerland

VMware ESX Engineer

SCOR SE - Zürich

Built VMware ESX 3.x and vSphere 4.0 environments to virtualize existing server infrastructure.
Configured and operated VMware infrastructure.
Virtualized servers with VMware.
Upgraded VMware ESX 3.5 infrastructure to vSphere 4.0.
Methods, tools, and technologies:
VMware ESX 3.5
vSphere 4.0
NetApp storage
Windows Server 2003 / 2008
PowerShell scripts.

Nov 2008 - Jun 2009

8 months

Zürich, Switzerland

Exchange 2007 Specialist / Engineer

SCOR Switzerland Ltd - Zürich

Cross-forest integration/migrations from existing Exchange 2003/2007 environments into a unified Exchange organization.
Domain and Exchange migrations with Quest Migration Manager.
Exchange virtualization on VMware ESX 3.5.
NetApp storage connections to Exchange.
Exchange infrastructure designs.
Email archive migration from Zantaz Exchange Archive to Legato Email Xtender.
Methods, tools, and technologies:
VMware ESX 3.5
Exchange 2003 / 2007
NetApp storage
Zantaz & Legato email archive
PowerShell scripts.

Apr 2008 - Oct 2008

7 months

Switzerland

IT Infrastructure System Engineer / Consultant

Axept AG - Schweiz

Various email migrations to Exchange 2007.
Exchange virtualization on VMware ESX 3.x.
NetApp storage connections to Exchange 2007.
Exchange infrastructure designs.
ISA 2006 designs/installs.
Methods, tools, and technologies:
VMware ESX 3.x
Exchange 2007
NetApp storage
ISA 2006.

Jul 2007 - Mar 2008

9 months

Zürich, Switzerland

Exchange 2007 Specialist / Consultant

Converium AG Reinsurance - Zürich

Migrated Lotus Domino to Exchange 2007.
Integrated and operated Exchange 2007 in the existing IT landscape.
Connected Exchange 2007 to Zantaz Exchange Archive Server.
Methods, tools, and technologies:
Lotus Notes Domino
Microsoft Exchange 2007
Zantaz email archive.

Jan 2007 - May 2007

5 months

Munich, Germany

Technical Consultant – Microsoft Exchange 2007 Migration

Münchener Rückversicherung

Built a feature lab based on Exchange 2007 RTM to evaluate the existing Exchange 2003 organization and develop a migration concept to Exchange 2007.
Created a high-level concept for Exchange 2007 (feature list, migration strategies, dependencies, requirements, prerequisites).
Considered consolidation potential.
Developed a detailed deployment guide with rough cost estimates.
Methods, tools, and technologies:
Microsoft Exchange 2003
Exchange 2007.

Sep 2006 - Dec 2006

4 months

Munich, Germany

Technical Consultant – Microsoft Vista Pre-Study

Münchener Rückversicherung

Built a test environment to evaluate the Microsoft Vista client.
Performed compatibility tests on existing client software.
Evaluated new features and functions.
Methods, tools, and technologies:
Microsoft VISTA.

Jan 2006 - Jul 2006

7 months

Munich, Germany

Technical Consultant / Microsoft Infrastructure

Magazinpresse Verlag GmbH

Managed Microsoft Windows Active Directory.
Managed Microsoft Exchange 2003.
Performed update and patch management.
Introduced Microsoft SMS 2003.
Packaged software products.
Distributed software based on RIS and SMS 2003.
Methods, tools, and technologies:
Local Microsoft Active Directory 2003 / Exchange 2003 infrastructure
Microsoft SMS 2003.

Aug 2005 - Dec 2005

5 months

Germany

IT Consultant – Exchange Focus

INA - Schaeffler KG

Migrated MS Exchange 5.5 sites to MS Exchange 2003.
Operated, monitored, and provided third-level support for the global Exchange 2003 infrastructure.
Designed and implemented Exchange 2003 enhancements.
Methods, tools, and technologies: Global Active Directory 2003 / Exchange 2003 structure with approx. 120 sites (approx. 30,000 clients).

Sep 2001 - Jun 2005

3 years 10 months

Sydney, Australia

Senior System Engineer / Project Manager

Munich Reinsurance Company of Australasia

Designed and implemented storage systems (SAN / NAS).
Designed and implemented disaster recovery solutions including server virtualization.
Technical project manager for infrastructure projects and rollouts across Australia and Asia.
Implemented and operated Microsoft Windows 2000/2003 / AD / Exchange 2000/2003 for all Asian and Australian sites (16).
Migrated all existing NT4 domains into a single Windows 2000 domain.
Migrated MS Exchange 5.5 to MS Exchange 2000/2003 for all regional sites.
Designed and implemented a remote access strategy for business units and admins in the region.
Implemented SMS 2.0 for software distribution in the region.
Migrated Citrix MetaFrame 1.8 to Citrix XP.
Methods, tools, and technologies: 16 Active Directory sites with 22 DCs and approx. 500 clients.

Oct 2000 - Aug 2001

11 months

Munich, Germany

Technical Consultant - Windows/Exchange 2000

Münchener Rückversicherung

Rolled out Microsoft Windows 2000 / Exchange 2000 with Active Directory in a single forest, multi-domain environment.
Designed and tested installation/configuration of a global Windows 2000 / Active Directory environment.
Designed and tested migration of a global Exchange 5.5 environment to Exchange 2000.
Designed and tested a remote access strategy under Exchange 2000.
Designed and tested backup/restore and disaster recovery strategy under Exchange 2000.
Methods, tools, and technologies: Global Active Directory 2000 / Exchange 2000 organization with 45 sites.

Jan 2000 - Sep 2000

9 months

Munich, Germany

Technical Consultant - Exchange 5.5

Münchener Rückversicherung

Provided 2nd and 3rd level support for Exchange 5.5.
Introduced and tested Exchange 5.5 tools.
Performed performance tuning and monitoring.
Handled administrative tasks.
Methods, tools, and technologies:
Global Exchange 5.5 organization with 45 sites
Exchange 5.5.

Oct 1999 - Dec 1999

3 months

Munich, Germany

Technical Consultant - Software Distribution

Hypo Vereinsbank München

Supported and prepared software distribution in all German bank branches.
Methods, tools, and technologies: MS Windows NT 4.0 (approx. 2,000 servers and 40,000 clients).

May 1999 - Sep 1999

5 months

Germany

Technical Consultant / Project Coordinator

Verlag Moderne Industrie AG

Designed and implemented a Windows NT4 infrastructure (4 sites and approx. 450 clients).
Implemented Exchange 5.5 at all sites.
Implemented a Microsoft SMS 2.0 infrastructure.
Developed IT security concepts.
Methods, tools, and technologies:
MS Windows NT 4.0
Novell NetWare 3.12
SQL 7.0
SMS 2.0
Exchange 5.5
Internet / Intranet
IT security concepts.

Nov 1998 - Apr 1999

6 months

Germany

Technical Consultant - Microsoft Products

Müller Milch GmbH

Supported the existing Windows NT 4.0 infrastructure.
Developed rollout concepts for further Windows NT 4.0 deployments.
Managed Europe-wide Exchange migration from MS Mail 3.5 to Exchange 5.5.
Implemented Microsoft SMS 2.0.
Methods, tools, and technologies:
MS Windows NT 4.0
Novell NetWare 3.12
SQL 7.0
SMS 2.0
Exchange 5.5
Internet / Intranet
IT security concepts.

Jul 1998 - Sep 1998

3 months

Munich, Germany

Technical Consultant - DMS / Archiving

Sercon GmbH - München

Advised clients on document management and archiving.
Methods, tools, and technologies:
MS Windows NT 4.0
Lotus Notes
SAP R/3 ArchiveLink
AIX
HP-UX.

Jul 1996 - Jun 1998

2 years

Germany

IT Specialist

Sana Kliniken GmbH

Designed, later implemented, and operated the entire IT infrastructure.
Handled helpdesk tasks.
Procured, installed, and supported hardware and software.
Participated in internal and external IT projects.
Methods, tools, and technologies:
MS Windows NT 4.0
Novell NetWare 3.12
ERP software
ISDN
RAS
SQL
SMS 1.2
Exchange 4.0 / 5.0
Internet / Intranet
IT security concepts.

May 1991 - May 1994

3 years 1 month

IT Manager

Photo Retail Chain with 40 Stores

Operated and supported all IT systems and POS systems in all stores.
Introduced and managed an inventory management system for the company.
Methods, tools, and technologies:
WfW 3.11
Novell NetWare 3.12
Office 4.3
Navision ERP software.

Summary

As an IT consultant who has been self-employed for over 25 years, I'm used to working independently but also integrating into new and existing teams. In projects, I like to work pragmatically and goal-oriented. Daily learning is part of my professional life, as is my commitment and sense of responsibility in all project phases.

In my free time, I enjoy spending time with family and friends, who appreciate my reliability and honesty. I like to initiate sports and social events, but I also value quiet days at home.

Languages

German

Native

English

Advanced

Education

Oct 1988 - Jun 1990