Fachlicher Schwerpunkt dieses Freiberuflers

Active Directory, Microsoft Exchange, Office 365

verfügbar ab
verfügbar zu
100 %
davon vor Ort
100 %
PLZ-Gebiet, Land



Ich möchte bevorzugt für Projekte in diesen Einsatzorten kontaktiert werden.



03/2013 - Heute

7 Jahre 5 Monate


[company on request]
Zurich, Switzerland

After being 20 years in IT, started my own company specialized in delivering infrastructure services with technological focus on Microsoft Exchange, Active Directory and Office 365.


[company on request] is a Silver Microsoft Partner with Cloud Productivity and Datacenter competencies.

Customers/Projects delivered:

  • Schindler (current project) – Migration of 65000 employees from Lotus Notes/Domino to Office 365. Acting as an Exchange and Outlook subject matter within the global migration team.
  • PGMM Schweiz AG, Winterthur, Switzerland – completed migration from Exchange 2010 to Office 365, 160 users on 4 locations and 3600 public folders.
  • Zehnder Group International AG, Gränichen, Switzerland – European leading producer of heating and air conditioning systems with 24 locations around Europe. Multiple projects:
    • Office 365 migration project (Design, Directory Synchronization, Active Directory Federation Services (ADFS), Exchange upgrade to Exchange 2013 and hybrid deployment with Office 365, Skype for Business, user migrations. 2800 users on 24 locations around Europe)
    • Mobile device management via MobileIron : System upgrades, daily administration, application deployments etc. approx. 800 mobile phone and tablets.
    • Monitoring project for 200+ servers (WhatsUP Gold)
    • Virtualization project – VMWare (from 14 host and 7 different ESX version consolidated to 5 new server all on vSphere 5.5 with high availability, vCenter, imaged server deployment..)
    • Active Directory troubleshooting and migration. Windows 2003 to Windows 2008 R2, 3500 users, 7 domains, 46 domain controllers. (including time sync, antivirus protection and monitoring and documentation)
    • Network Time Synchronization project for 3500 computer systems across the entire company
  • Ruhr University, Bochum, Germany – Skype for Business design and deployment for the university staff of 1000 users
  • Scholz-Wöllenstein, Chemnitz, Germany – a major Mercedes-Benz car dealer/servicing chain in Germany. Exchange 2003/2007 to Exchange 2013 migration for 650 users in 4 AD domains.
  • Livit AG – a Swiss real-estate management company – troubleshooting Exchange 2007 environment.
  • Rotronic AG – a major retail company in Bassersdorf, Switzerland. Based on previous positive experience, customer engaged us for an Exchange 2007 to Exchange 2013 migration for 250 users.
  • Acolin Fund Services AG – Exchange 2010 / Outlook 2010 troubleshooting
  • Ruhr University, Bochum, Germany – Exchange 2007 to Exchange 2013 SP1 migration (High availability configuration of 4 servers, 1000 users)
  • GAM – Global Asset Management is an asset management company, managing some 132 billion CHF of assets and with 1000 employees worldwide. Current project – migration of Windows servers from Zurich to London datacenter.
  • Rotronic – a major distributor company in Bassersdorf, Switzerland. Exchange 2007 troubleshooting.
  • Suva insurance, Luzern, Switzerland – the biggest insurance and 4th largest financial institution in Switzerland specialized in incident insurance. 137 billion CHF of insurance coverage and 7500 employees. 3rd level support to their messaging team which manages the current Exchange 2010 environment, design and migration from Exchange 2010 to Exchange 2013
  • Ruhr University Bochum, Germany – delivered an Exchange 2007 to Exchange 2013 Migration workshop
  • Credit Suisse, Zurich, Switzerland – operational support to existing environment during the Exchange 2003 to Exchange 2010 migration project
  • ThyssenKrupp, Essen, Germany – delivered a new Exchange 2010 high availability environment for top management. Company has 150.000 employees and is one of the largest metal industry companies in the world.
  • An investment company in Geneva, Switzerland - Migration of Active Directory (2003 to 2008 R2) , Exchange (2007 to 2010) and Blackberry Express Server (4 to 5)


Trainings delivered as instructor:

  • MOC 20417 – Upgrading your skills to MCSA Windows Server 2012
    • Digicomp Academy AG, Zurich, September 2014
  • MOC 20341 – Core Solutions of Microsoft Exchange Server 2013
    • Glasspaper, Oslo, Norway, June 2015
    • Firebrand, Sweden, August 2014
  • MOC 20342 – Advanced Solutions of Microsoft Exchange Server 2013
    • Glasspaper, Oslo, Norway, June 2015
    • Firebrand, Sweden, August 2014
  • MOC 10961 – Automating Administration with Windows PowerShell,
    • Arrows, Munich, Germany, April 2014
    • Arrows, Dreieich, Germany, May 2014
    • Arrows, Munich, Germany, June 2014
  • MOC 20346 – Managing Office 365 Identities and Services
    • Glasspaper, Oslo, Norway, June 2014
  • MOC 20412 D – Configuring Advanced Windows Server 2012 Services
    • Digicomp Academy AG, Bern, June 2014

05/2011 - 02/2013

1 Jahr 10 Monate

IT Project Manager

Nyrstar AG Zurich, Switzerland

Responsible for Nyrstar’s global Active Directory and Exchange infrastructure for 4700 users across 24 global locations on 4 continents.


In this role I performed following duties:

  • Review and stabilization of Nyrstar’s old Windows 2003/Exchange 2003 infrastructure
  • Overall Project management and budgeting for the Active Directory / Exchange migration project
  • Technical design of the new Windows 2008 R2/Exchange 2010 infrastructure
  • Roll-out of 23 new Windows 2008 R2 domain controllers and 10 Exchange 2010 servers
  • Migration of 4700 mailboxes from Exchange 2003 to Exchange 2010
  • Operational maintenance of the Active Directory and Exchange infrastructure
  • 2nd level support and coaching to local IT teams
  • Coordination with other specialists in the Global IT infrastructure team (datacentre, network, backup, antivirus, integration of AD with SAP etc.)
  • Assistance to integration team on integration of other business acquired by Nyrstar into Nyrstar’s Active Directory and Exchange infrastructure.
  • Assistance with migration of dependant systems (BlackBerry, archiving)
  • Coordination with external providers of IT services.

Nyrstar is a global metal corporation focused on mining and smelting of zinc and lead.

03/2011 - 05/2011

3 Monate

Consultant II

Axept AG Glattbrugg, Zurich, Switzerland

Worked on design, planning and delivery of Exchange migration and consolidation projects for Axept and Swisscom customers. Provided 3rd level Exchange support for diverse customers. Supported Swisscom in presales activities regarding their Managed Communications and Collaboration (MCC) offering.

Axept is a gold Microsoft partner and a daughter company of Swisscom.

07/2010 - 02/2011

8 Monate

Senior Consultant

Winworkers Zurich, Switzerland

Worked on delivery of Microsoft based infrastructure projects for Winworker’s customers (analysis, design, implementation, support and training) in area of Exchange, Active Directory, PKI, TMG. Delivered following projects:

  • Nyrstar – International mines corporation, Zurich, Switzerland. Workshop on Active Directory and Exchange, testing of the existing environment consisting of 15 Windows 2003  AD sites globally, 10 Exchange 2003 servers and 3000 users in order to determine its readiness for upgrade to Windows 2008/Exchange 2010. 
  • Ambit AG – CRM software vendor, Winterthur, Switzerland. Active Directory migration from Windows 2003 to Windows 2008 R2, Exchange migration from Exchange 2003 to Exchange 2010.
  • WEH AG – industrial customer, Illertissen, Germany. Active Directory migration from Windows 2003 to Windows 2008 R2, Exchange migration from Exchange 2003 to Exchange 2010 SP1, firewall migration from ISA Server 2006 to TMG 2010 cluster.
  • Meyer Burger AG – industrial, manufacturer of solar energy equipment, Thun, Switzerland. Complete infrastructure analysis and redesign, Windows 2008 R2 domain installation, Exchange 2010 SP1 installation, migration from existing Lotus Notes 8.5.1 environment to Exchange 2010 SP1
  • Swisscom, CBU-Corporate Business Unit – Windows 2008 Active Directory and PKI design and implementation for managed UC project.
  • Winworkers Schweiz GmbH – internal migration from Exchange 2007 to Exchange 2010, migration of firewall from ISA 2006 to Forefront TMG 2010

05/2008 - 06/2010

2 Jahre 2 Monate

Principal Consultant

BT Global Services Zurich, Switzerland

Consultant in area of Microsoft Exchange. Main project which I worked on was for an global industrial customer headquartered in Germany where I designed and deployed an Exchange 2007 solution for 28.000 users across 38 countries.

Also supported the sales organisation in several bid processes (technical expertise in area of Microsoft Infrastructure / Exchange, solution design, risk analysis, cost estimates etc.)  Among others for an energy giant with 120.000 users in 16 countries.

BT is one of the largest Telekom and Services corporations globally with 106.000 employees, serving customers in 170 countries.

08/2007 - 04/2008

9 Monate

System Specialist Messaging

Swisscom Zurich, Switzerland

Designed a migration of their existing messaging system from a Unix based to Microsoft Exchange 2007 based system for 2.500.000 (2.5 million) users.

Swisscom is the largest telecom company in Switzerland.  Swisscom Fixnet division is dealing with fixed telephony and internet services. Internet services are offered under the BlueWin brand including wide range of services:  DSL, e-mail, IPTV, VoIP, etc.  

09/2006 - 07/2007

11 Monate

Microsoft Technical Engineer

Stryker SA Montreux, Switzerland

I was hired to perform a migration of Stryker’s EMEA messaging system from Lotus Notes to Microsoft Exchange.

Supported existing mixed Exchange and Lotus Notes environment in EMEA region and also acted as a backup person for corporate Exchange administrators on global level.

Designed and completed a stabilization project which stabilized their existing environment and solved some major Lotus Notes –Exchange interoperability issues. Reduced downtime of their Exchange system from 80 hours a month to near 0 and reduced the number of helpdesk tickets by 80% in just 3 months.

Stryker is a Fortune 500 medical company with 16.000 employees worldwide.

09/2005 - 09/2006

1 Jahr 1 Monat

Senior Consultant

Intellecom GmbH Boeblingen, Germany

Major project I worked on was for Festo on a Lotus Notes 7.0 to Exchange 2007 beta 2 migration as a part of Exchange 2007 Rapid Deployment Program (RDP). Festo is a world leading industry automation solution provider with 11.500 employees in 132 locations in 54 countries, providing services to over 300.000 customers in 176 countries. Microsoft uses this project as a reference:

Also worked on a number of projects all over Germany for small and medium sized companies, mainly migrations from Exchange 5.5 to Windows 2003 and Exchange 2003 as well as new Exchange 2003 implementations.


Intellecom is a Microsoft Gold Certified Partner in Information Worker, Infrastructure and Mobility solutions areas.  

05/2003 - 08/2005

2 Jahre 4 Monate

Lead Architect

Infosistem, Zagreb, Croatia

Completed a large scale, nationwide Exchange 2003 project for Croatian Railways. The project was done in cooperation with Microsoft Consulting Services and is currently the largest Exchange 2003 installation in Croatia. I was in charge with designing and implementation of their Exchange 2003 infrastructure which replaced their Exchange 2000 and Linux systems.        

Also worked as a 3rd level support to some of our key customers like, American Express, National University Library, Ferrero, Municipality of Virovitica, etc.   

Infosistem is a system integrator company, one of the largest IT companies in Croatia, a Microsoft Gold Certified Partner for Collaborative Solutions and a Microsoft Gold Certified Partner for Support Services

06/2002 - 05/2003

1 Jahr

System Engineer

Omega-software, Zagreb, Croatia


Provided complete networking and server infrastructure solutions for the company from scratch (audit of current state, redesign, equipment specifications and purchase, server installations, Active Directory migration and consolidation, etc )  The end result was a stabile infrastructure consisting of  Windows 2000 Active Directory,  network with multiple sites connected over Internet by VPN connections , with Windows XP clients, Exchange, System Management Server, Sharepoint Portal Server, Internet Security and Acceleration Server, Internet Information Server, antivirus protection system based on Norton Antivirus Enterprise Edition and backup solution based on Veritas BackupExec)

Also worked on deployments on our customer’s sites. SQL Server 2000 installations and deployment of Omega’s financial applications to client computers.

Omega Software is an independent software vendor of business applications and a Microsoft Certified Partner


06/2000 - 05/2002

2 Jahre

System Engineer

Infodom Zagreb, Croatia

Provided complete networking and server infrastructure solutions from scratch for the company and for its projects (Windows 2000 Network, Active Directory, DNS, DHCP, WINS, DFS, Exchange, SMS, Sharepoint, ISA, IIS, antivirus protection, Veritas Backup Solution, etc.). I was also in technical lead of a 4-member technical team, consisting of 2 junior engineers and 2 technicians

Supported Infodom employees and Infodom’s Windows 2000 LAN/WAN infrastructure, consisting of 9 servers and 50 workstations

The major project I worked on was at The Croatian Ministry of Maritime Affairs, Transport and Communications. The Ministry had 260 computers on 72 locations, most of those were not even physically connected to each other and not being managed properly. All their PC and locations were consolidated into single Windows NT 4.0 network, managed with Systems Management Server, with Exchange messaging system and proper antivirus and backup protection I was also providing system engineering advice and assistance to projects that are being done for Croatian Telecom and Republic of Croatia State Geodetic Administration

Infodom is an independent software vendor, a Microsoft Certified Partner since year 2000 and an ISO9001 certified company

10/1998 - 05/2000

1 Jahr 8 Monate

Project Manager

NSU – National Support Unit Banja Luka, Bosnia-Herzegovina

I was in charge of the project financed by the Swedish government through its SIDA (Swedish International Development and Cooperation Agency). The project was about 0.5 million DEM worth and it was done together with Republic of Srpska Ministry of Administration and Local Self-government. The goal of the project was to deliver a citizens database for municipal registration offices in the Republic of Srpska entity and for the Ministry for Administration and Local Self-government. Beside data entry and issuing documents like birth or marriage certificates, system provides communication and data exchange between the municipalities and the Ministry as well as data processing and reporting at the Ministry and Municipal level.


Specifically, I was in charge of technical planning, hardware and software purchase, actual implementation, establishment of a computer training centre, end-user and technical training and support.


Within the organisation I deployed a complete computer network solution for our offices in Bijeljina and Banja Luka (equipment purchase, assembling the server and Ethernet cabling, Windows NT network, setup of an Exchange/Outlook communication and collaboration system, setup of MS Proxy server, and IIS for our local Intranet).

Worked on project financed by EC (European Community) and IOM (International Organisation for Migration) in Bihac Municipality where NSU has deployed a Windows NT network consisting of 50 computers and applications for protocol and reconstruction. Worked on setup of the entire network (Windows NT Servers with BackOffice 4.5 and Win95 and Win NT 4.0 workstations). Completed a project financed by SRSA (Swedish Rescue Services Agency) and SIDA in Zvornik Gymnasium, where I have worked on computer equipment purchase, installation of a computer classroom and training of teachers working there.


Trained users in Outlook 2000. Also developed the curriculum and training materials for this training. 

Also worked on a project financed by OSCE (Organisation for Security and Cooperation in Europe) that should provide 22 municipalities in Bosnia with budgeting and finance computer system dealing with the IT aspect of the project.


Zertifikat Deutsch – Goethe Institut, Note: zehr gut 291/300

Proficiency level, including ability to deliver technical consulting and presentations

Produkte / Standards / Erfahrungen

Office 365

  • Design
  • Directory synchronization
  • Active Directory Federation services
  • Exchange Hybrid deployment
  • Skype For Business (instant messaging, voice, video, mobile device access)


Exchange/Outlook messaging and collaboration systems:

  • Design, installation, maintenance and troubleshooting on 7 generations of Microsoft Exchange (2016 2013, 2010, 2007, 2003, 2000, 5.5) As an Exchange MVP participated in early development of Exchange 2013, 2010 and 2007, RDP – Rapid Deployment Programmes, early ignite trainings, etc.
  • Exchange 2016 as a part of Office 365
  • Exchange PowerShell
  • Complex migrations from  Exchange 5.5 to Exchange 2000 / Exchange 2000 to Exchange 2003 / Exchange 2003 to Exchange 2010 / Exchange 2010 to Exchange 2013 / and Lotus Notes to Exchange migrations, Exchange on premise to Office 365 migrations.
  • 3rd party products for Exchange server: backup and  restore (Symantec BackupExec), antivirus (Symantec, TrendMicro, Sophos) , monitoring (Quest Spotlight on Exchange), documenting (Ecora Configuration Auditor), migration (Quest Migration Manager for Exchange, Notes Migrator for Exchange, NetIQ Migrator for Exchange), etc
  • All Outlook client generations 2013/2010/2007/2003/XP/2000/98/97


Active Directory / Windows Servers

  • Hands-on experience with all Windows server generations: Windows Server 2012 R2 / 2008 R2 /2008/2003/2000/ /XP/NT4.0
  • Complex Active Directory migrations: Win NT 4.0 to Windows 2000 migrations / Windows 2000 to Windows 2003 migrations / Windows 2003 to Windows 2008 / Windows 2008 to Windows Server 2012 R2, multiple domain, multiple AD forests, large international projects,
  • Experience in using both Microsoft and non-Microsoft migration tools (ADMT, Quest Migrator, etc.)
  • AD, DNS, WINS, DHCP, RRAS, VPN, Group Policy…



Skype for Business

  • Design and implementation of Skype for Business 2015 Server



  • VMware Workstation 10,9,8,7,6,5,4,3;  VMware vSphere / ESX 6.0, 5.5, 5.1, 5.0, 4.0, 3.5;  Microsoft Hyper-V


Load balancers

  • Kemp Technologies – Load Master Serie 7


Corporate antiviral protection solutions

  • Based on Symantec, Trend Micro and McAfee product lines.

Backup solutions

  • Backup Exec 7.x, 8.x and 9, 2012


Other Microsoft Servers:   

  • Firewall – TMG 2010, ISA - Internet Security and Acceleration Server 2006, 2004, 3.0, MS Proxy 2.0
  • SCCM - Systems Centre Configuration Manager 2007 R2, 2003, SMS 2.0


Other Microsoft applications

  • Microsoft Project (project management)
  • Microsoft Visio (technical documentation)


Microsoft Certified Professional program:

  • Microsoft Sales Specialist - Messaging
  • MCITP: Enterprise Messaging Administrator 2010
  • MCTS: Microsoft Exchange 2010 Configuration
  • MCSE 2003:Messaging – Microsoft Certified System Engineer: Messaging 
  • MCSE 2003 – Microsoft Certified System Engineer (Windows 2003 track) 
  • MCSA 2003:Messaging – Microsoft Certified System Administrator:Messaging 
  • MCSA 2003 – Microsoft Certified System Administrator 
  • MCSE 2000: Messaging – Microsoft Certified Systems Engineer: Messaging 
  • MCT – Microsoft Certified Trainer 
  • MCSE 2000 – Microsoft Certified System Engineer (Windows 2000 track) 
  • MCSE+I - Microsoft Certified System Engineer + Internet 
  • MCSE NT4.0 - Microsoft Certified System Engineer (Windows NT 4.0 track) 
  • MCP+I – Microsoft Certified Professional + Internet and  
  • MCP – Microsoft Certified Professional

Passed 22 Microsoft exams:

  • 070-663 PRO: Designing and Deploying Messaging Solutions with Microsoft Exchange 2010
  • 070-662 TS: Microsoft Exchange Server 2010 Configuring
  • 070-285 Designing a Microsoft Exchange Server 2003 Organization
  • 070-296 Planning, Implementing, and Maintaining a Microsoft Windows Server 2003 Environment for an MCSE Certified on Windows 2000
  • 070-292 Managing and Maintaining a Microsoft Windows Server 2003 Environment for an MCSA Certified on Windows 2000
  • 070-284 Implementing and Managing Microsoft Exchange Server 2003
  • 070-225 Designing and Deploying a Messaging Infrastructure with Microsoft Exchange 2000 Server
  • 070-224 Installing, Configuring, and Administering Microsoft Exchange Server 2000
  • 070-215 Installing, Configuring and Administering Microsoft Windows 2000 Server
  • 070-210 Installing, Configuring and Administering Microsoft Windows 2000 Professional
  • 070-216 Implementing and Administering a Microsoft Windows 2000 Network Infrastructure
  • 070-217 Implementing and Administering Windows 2000 Active Directory Services Infrastructure
  • 070-219 Designing a Microsoft Windows 2000 Directory Services Infrastructure
  • 070-058 Networking Essentials
  • 070-073 Windows NT 4.0 Workstation
  • 070-067 Implementing and Supporting Microsoft Windows NT Server 4.0
  • 070-068 Implementing and Supporting Microsoft Windows NT Server 4.0 in the Enterprise
  • 070-059 Internetworking with Microsoft TCP/IP on Microsoft Windows NT 4.0
  • 070-081 Implementing and Supporting Microsoft Exchange Server 5.5
  • 070-088 Implementing and Supporting Microsoft Proxy Server 2.0
  • 070-087 Implementing and Supporting Microsoft Internet Information Server 4.0
  • 070-080 Implementing and Supporting Microsoft Internet Explorer 5.0 by Using the Microsoft Internet Explorer Administration Kit


Kemp Technologies

  • Kempt Technologies System Engineer (load balancers)


Quality Systems Auditor, accredited by DNV – Det Norske Veritas

  • AQSC Auditor for ISO9001:2000 Quality Management Systems and
  • AQSC Sector Expert for ISO9001:2000 Quality Management Systems (Sector 33 - Information Technology)


  • Foundation Certificate in IT Service Management


Delivered following Microsoft Official Curriculum (MOC) courses: 

  • MOC 20341 B – Microsoft Exchange 2013 Server Core Solutions
  • MOC 20342 B – Advanced Solutions of Exchange Server 2013
  • MOC 20412 D – Configuring Advanced Windows Server 2012 Services
  • MOC 20346A – Managing  Office 365 Identities and Services
  • MOC 10961 – Automating Windows Administration with PowerShell,
  • MOC 10135 - Configuring, Managing and Troubleshooting Microsoft Exchange Server 2010


Microsoft trainings:

  • Skype for Business Airlift Technical Training
  • Microsoft Sales Specialist - Messaging
  • Exchange 2013 Ignite Summit
  • TechNet IT Camp Windows Server 2012, Hyper-V Server 2012 und Windows Azure
  • Office 365 Deep Dive training
  • Exchange 2010 Ignite training
  • Integrating Microsoft Unified Communications with CISCO IP Telephony
  • VoIP fundamentals
  • Exchange 12 Ignite training
  • Workshop: Migrating from Lotus Notes to Exchange (Microsoft and Quest)
  • Microsoft Operations Manager 2005 Overview
  • Workshop: Updating Skills From ISA 2000 To ISA 2004
  • MOC Course 2400: Implementing and Managing Microsoft Exchange Server 2003
  • Expert Workshop: Microsoft Windows 2003 Readiness
  • Expert Workshop: Building a Secure Connected Infrastructure Using Microsoft Technologies
  • Train the Trainer (preparation for Microsoft Certified Trainer exam)
  • Expert Workshop: Upgrading existing Windows NT 4 networks to Windows 2000
  • MOC Course 1561: Designing a MS Windows 2000 Directory Services Infrastructure
  • MOC Course 2154: Implementing and Administering MS Windows 2000 Directory Services
  • MOC Course 2153: Implementing a MS Windows 2000 Network Infrastructure
  • MOC Course 1140A:  Microsoft SQL Server 7.0 Overview
  • MOC Course 803: Administering MS Windows NT 4.0
  • MOC Course 922: Supporting MS Windows NT 4.0 Core Technologies


Kemp Technologies

  • Partner technical certification training (load balancers)

Veritas (backup software)

  • Veritas Netbackup 5.0 for Windows
  • Veritas Netbackup Vault

DNV – Det Norske Veritas

  • training for Internal Auditors ISO 9001:2000 QMS (Quality Management System)



  • EMC2 Solutions workshop for Microsoft Exchange


  • Military Gymnasium "Ivo Lola Ribar", Zagreb, Croatia (1991)
  • Technical Military High School, Kraljevo, Serbia (1992)
  • Belgrade Business School, Management Department, Belgrade, Serbia (1996) (completed all course requirements but did not graduate, because the department was closed by the Milosevic regime)