Markus D.
Senior System Engineer (Server)
Experience
Senior System Engineer (Server)
EMS Chemie
- Operating and enhancing the global server and virtualization infrastructure
- Operating and maintaining storage systems used worldwide
- Managing global Active Directory services
- Providing 2nd and 3rd level support in the mentioned areas
- Independently overseeing and leading small IT projects
Solution Architect
Oberfinanzdirektion Karlsruhe
- Conducting as-is and to-be analysis
- Gathering requirements for the new platform
- Analyzing forensic software FTK, X-Ways, Hansken, and Nuix
- Coordinating with the business department
- Creating a high-level design
- Collecting requirements for the forensic software Nuix and Hansken
Lead Senior System Engineer
Falcon Privatebank AG
- Managing 200 Windows servers
- Optimizing the Argent monitoring solution
- Setting up WSUS patching
- Operating an Exchange 2016 cluster and a SQL cluster
- Administering PKI
- Migrating an MS SQL cluster
- Operating a Citrix farm
- Creating data analysis PowerShell scripts
- Managing the NDES-Intune installation
- Administering NetApp filers
- Operating a VMware ESX cluster
- Leading the email export project (EnterpriseVault export with Transvault, O36 migration with CodeTwo)
- Leading a data migration project
Citrix / Infrastructure Architect
ZKW Group
- Leading the Citrix farm project in China
- Redesigning the entire global Citrix infrastructure
- Setting up Citrix Cloud with internal NetScalers and RSA two-factor authentication
- Performing VMware/Citrix performance tuning
- Developing a high-level concept for the new network infrastructure
- Advising on the network setup for the new logistics center based on the new concept
- Presenting to management
Continuous Improvement Manager Base & Application Integration Engineering
Swisscom (Schweiz) AG
- Improving work in the connected workplace
- Providing external access with NetScaler and multi-factor authentication
- Optimizing the entire virtualization environment for over 20 clients
- Leading the performance task force
- Performing VMware/Citrix performance tuning
- Planning resources
- Handling escalations
- Conducting technical interviews and selecting candidates
Consultant
DKV Mobility Services Business Center GmbH & Co. KG
- Correct file server permissions with PowerShell scripts
- Find and delete empty Active Directory groups with PowerShell
- Find and fix NTFS permissions with PowerShell (creating missing groups in subdomains)
Consultant
Papierfabrik Louisenthal GmbH
- Migration of Active Directory domain controllers from Windows Server 2012 to Windows Server 2016
- Migration of DHCP Server from Windows Server 2012 to Windows Server 2016
- Migration of DFS file servers from Windows Server 2012 to Windows Server 2016
- Installation of Active Directory Certificate Services (PKI) on Windows Server 2016
- Migration of Citrix XenDesktop 7.9 to Citrix XenDesktop 7.15 LTSR
- Migration of Citrix XenApp 6.5 to Citrix XenApp 7.15 LTSR
- Configuration of NetScaler load balancer
- Migration of XenServer 7 to VMware ESX 6.5
Solution Architect
Stadler Rail
- Creation of a detailed design for centralizing and renewing the Citrix XenApp/XenDesktop farm based on XenDesktop 7.17 LTSR
- Setup of a farm with multiple sites across four locations
- Deployment using PVS and MCS and implementation of persistent desktops for GPU usage
- Access via GSLB/Access Gateway with GeoIP and user group mapping
Infrastructure Team Lead
VionFood Group
Leading an infrastructure team with 24 team members across 12 sub-teams (network, Citrix, backup, etc.)
Responsible for budget, staff, and project management
Improving the quality of delivered work
Holding regular meetings and informing the Supply Chain Manager
Designing and implementing a dedicated Workplace AD with Windows 10 and Office 365 including Hosted Exchange, SharePoint, OneDrive, Delve, and Skype for Business
Implementing ADFS for external authentication with a web proxy in the DMZ and ADFS servers in the LAN
Setting up a problem management structure for faster incident resolution and prevention
Adding Microsoft Identity Management (MIM/IAM) for building the new Workplace domain
Consultant
Küchenhaus Jansen
- Migration of Microsoft Exchange Server 2010 to Office 365
- Upgrading local MS Office 2010/2013 installations to Office 2016
Architect
Kapsch Group
- Design of the new Citrix infrastructure with XenApp 6.5 and Provisioning Services
- Planning external access for iPhones and iPads via NetScaler with Access Gateway Enterprise (AGEE)
Architect
Lanxess
- Reviewing the design of the new Citrix XenApp 6.5 and Provisioning Services environment in EMEA and AP
- Proposing necessary changes
- Creating the concept for remote access via Access Gateway Enterprise (AGEE) for AP
Global Data Center Architect
Scor International LTD
Concept and design of the new global data center for a central Citrix environment
Designing zoning and worker groups for worldwide application delivery
Using Citrix XenApp 5, XenApp 6.5, Provisioning Server 5.6, and NetScaler
Virtualizing 143 XenApp servers on VMware in two data centers
Implementing the concept as an engineer
Using LanDesk Management Suite from version 9 to deploy XenApp servers including applications
Packaging software for unattended installations of Citrix servers and applications with LanDesk
Scripting with PowerShell, VBScript, and batch
Creating concepts and documentation
Tuning, performance optimization, and capacity planning
Managing file migrations between two domains
Implementing Nagios monitoring for the Citrix infrastructure
Daily operational tasks
Concept and design of the upgrade to XenApp/XenDesktop 7.x, including a new remote access solution with NetScaler Access Gateway Enterprise and SafeNet two-factor authentication, as well as StoreFront 3.x
Technical project lead/architecture for two-factor authentication on Windows workstations, including PoCs with DUOsecurity, RSA, SafeNet SAS Cloud, DualShield with RSA over a SAML connection to the ADFS server as IdP
Role-based access management with Forefront Identity Manager (FIM/IAM)
Technical lead for implementing/updating Korvas software from 4.4 to 4.5 64-bit and from 4.5 to 4.6 on XenApp 6.5
XenDesktop VDI Architect
T-Systems AG
- Designing and deploying 5000 XenDesktop VDIs on VMware ESX
- Administration of Citrix Provisioning Service and XenDesktop DDC
- Creating VMs via vCLI PowerShell script
- Profile management with AppSense EM v8
- Software distribution using Matrix24
Active Directory & Infrastructure Architect
Pearl Optics
- Building and maintaining the local Active Directory
- Administration of Windows and Linux workstations
- Migrating Exchange 2010 to Office 365 with external authentication via ADFS without password sync
- Implementing SharePoint, OneDrive, and Delve
- Upgrading Windows Server 2008 to Windows Server 2012 R2
- Managing site-to-site VPN connections
- Remote work by arrangement
Summary
- Project management team leadership
- Windows Server
- Windows Server 2012
- Windows Server 2016
- Windows Server 2008
- Office 365
- Active Directory Group Policy (GPO)
- Windows 7
- ADFS
- Migration rollout
- Citrix XenApp 6.5 – 7.x
- Citrix XenDesktop 4 – 7.x
- Citrix NetScaler 8 – 11
- Citrix XenMobile 8 – 10
- Virtualization
- PowerShell
- Citrix ShareFile
- Windows 10
- Microsoft SQL
- VBScript
- LAN / WAN
- Firewall
- Authentication / Authorization
Because of my passion and many years of experience in IT, both as a hobby and at work, I work quickly and am very versatile. I easily adapt to any new work environment and can learn new things fast. I am a good team player and a supportive colleague. I am also strong in my own work. I am helpful and always try to find the best solution for every problem. To me, a problem is a challenge and I solve it quickly thanks to my analytical skills.
Languages
Certifications & licenses
SC900 - Microsoft Security, Compliance and Identity Fundamentals Training
AppSense Certified Administrator Training
Access Gateway 4
Agile Scrum
Citrix Certified Associate – Networking (CCA-N)
Citrix Certified Associate — Virtualization
Citrix Certified Enterprise Engineer for Virtualization
Citrix Certified Integration Architect for Virtualization
Citrix Certified Professional – Mobility
Citrix Certified Professional – Networking (CCP-N)
Citrix Certified Professional — Virtualization
Citrix WANScaler 4
Citrix XenMobile Specialist
Citrix XenServer 6
Exam 398: Planning for and Managing Devices in the Enterprise
Internal Auditor ISO 27001 (certified by DNV-GL)
MCITP Enterprise Administrator
MCITP Enterprise Messaging Administrator
MCITP Enterprise Support Technician
MCITP Server Administrator
MCSE 2003 Security
MCTS Microsoft Desktop Optimization Pack, Configuring
MCTS Microsoft Exchange Server 2007: Configuration
MCTS Microsoft Office SharePoint Server 2007: Configuration
MCTS Microsoft Windows SharePoint Services 3.0: Configuration
MCTS Microsoft Windows Vista: Configuration
MCTS Windows 7, Configuration
MCTS Windows Server 2008 Active Directory: Configuration
MCTS Windows Server 2008 Applications Infrastructure: Configuration
MCTS Windows Server 2008 Network Infrastructure: Configuration
MCTS Windows Server 2008 R2, Desktop Virtualization
MCTS Windows Server Virtualization, Configuration
Microsoft Certified Solutions Associate (MSCA): Windows Server 2012
Microsoft Certified Solutions Associate (MSCA): Windows Server 2016
Microsoft Certified Solutions Expert (MSCE): Cloud Platform and Infrastructure
Microsoft Specialist: Administring Office 365 for Small Business
NLP Coach
NetScaler 10
NetScaler 9
PMI-ACP (Agile Certified Professional)
Password Manager 4
Provisioning Server 4
Provisioning Server 5
XenApp (Presentation Server 4)
XenApp 5 Platinum Edition
XenApp 5 for Windows Server 2003
XenApp 6.5
XenDesktop 3
XenDesktop 4
XenDesktop 5
XenDesktop 7
XenMobile 8/9/10
XenServer 4 Platinum Edition
XenServer 5 Platinum Edition
XenServer Enterprise Edition 5
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