Markus D.-Senior System Engineer (Server)
Check rate
Experience
Senior System Engineer (Server)
EMS Chemie
- Operation and further development of the global server and virtualization infrastructure
- Operation and maintenance of storage systems used worldwide
- Active operation of global Active Directory services
- Provision of 2nd- and 3rd-level support in the areas mentioned
- Independent support and management of small IT projects
Solution Architect
Oberfinanzdirektion Karlsruhe
- Current-state/target-state analysis
- Gathered requirements for the new platform
- Analysis of forensic software FTK, X-Ways, Hansken, Nuix
- Coordination with the business unit
- Created high-level design
- Gathered requirements for forensic software Nuix and Hansken
Lead Senior System Engineer
Falcon Privatebank AG
- Managed 200 Windows servers
- Optimized the Argent monitoring solution
- Set up WSUS patching
- Operated the Exchange 2016 cluster
- Operated the SQL cluster
- PKI administration
- Migrated MS-SQL cluster
- Operated the Citrix farm
- Created PowerShell scripts for data analysis
- Managed the NDES Intune installation
- NETAPP filer administration
- Operated the VMware ESX cluster
- Led email export project (EnterpriseVault export with Transvault, O36 migration with CodeTwo)
- Led data migration project
Citrix / Infrastructure Architect
ZKW Group
- Project Manager for Citrix farm in China
- Redesigned the entire Citrix infrastructure (worldwide)
- Set up Citrix Cloud with internal Netscalers and RSA 2-Factor Authentication
- VMware / Citrix performance tuning
- Created a high-level concept for the new network infrastructure
- Advised on the network infrastructure for the new logistics center, taking the new concept into account
- Presented to management
Continuous Improvement Manager Base & Application Integration Engineering
Swisscom (Schweiz) AG
- Improved ways of working in the Connected Workplace
- External access with Netscaler and multi-factor authentication
- Optimized the entire virtualization environment for >20 customers
- Performance Taskforce Lead
- VMware / Citrix performance tuning
- Resource planning
- Escalation management
- Conducted technical job interviews and selected candidates
Consultant
DKV Mobility Services Business Center GmbH + Co. KG
- Corrected user profile permissions using PowerShell scripts
- Identified and deleted empty, unnecessary Active Directory groups using a PowerShell script
- Identified NTFS permissions using PowerShell and replaced them with the correct ones (created the group if it did not exist in the subdomain)
Consultant
Papierfabrik Louisenthal GmbH
- Migrated Active Directory Domain Controller from Windows Server 2012 to Windows Server 2016
- Migrated DHCP Server 2012 to Windows Server 2016
- Migrated DFS FileServer from Windows Server 2012 to Windows Server 2016
- Installed Active Directory Certificate Services (PKI) on Windows Server 2016
- Migrated Citrix XenDesktop 7.9 to Citrix XenDesktop 7.15 LTSR
- Migrated Citrix XenApp 6.5 to Citrix XenApp 7.15 LTSR
- Netscaler Loadbalancer
- Migrated from XenServer 7 to VMware ESX 6.5
Workshop Leader / Trainer
Hannover RE
- Workshop on Citrix Netscaler integration with OKTA SSO / Identity and Access Management (IAM)
- Trainer for Office 365 and Microsoft Azure courses
Solution Architect
Stadler Rail
- Created a detailed concept for centralizing and modernizing the Citrix XenApp/XenDesktop farm based on XenDesktop 7.17 LTR
- Built a farm with multiple sites (4 locations)
- Deployment with PVS and MCS, as well as persistent desktops for GPU use
- Access via GSLB / AccessGateway implementation with GeoIP and user group membership
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Telecommunication, Banking and Finance, Automotive, Manufacturing, Chemical, and Government and Administration.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Project Management, and Operations.
Summary
Due to my passion for IT and many years of experience in the field, both as a hobby and at work, I work quickly and am very versatile. I adapt easily to any new work environment and am able to quickly pick up and learn new things. I am a good team player and a good colleague. I am just as good at working independently.
I am helpful and always try to find the best solution to every problem. I see a problem as a challenge and solve it quickly thanks to my analytical skills.
Skills
- Project Management
- Team Leadership
- Windows Server (2008, 2012, 2016)
- Office 365
- Active Directory
- Group Policy (Gpo)
- Windows 7
- Windows 10
- 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
- Microsoft Sql
- Vb Script
- Lan / Wan
- Firewall
- Authentication
- Authorization
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 (Audited by DNV-GL)
MCITP Enterprise Administrator
MCITP Enterprise Messaging Administrator
MCITP Enterprise Support Technician
MCITP Server Administrator
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 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
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Markus is based in Birmensdorf, Switzerland.
Markus speaks the following languages: German (Native), English (Advanced), Dutch (Advanced).
Markus has at least 5 years of experience. During this time, Markus has worked in at least 7 different roles and for 9 different companies. The average length of individual experience is 1 year and 7 months. Note that Markus may not have shared all experience and actually has more experience.
Based on recent experience, Markus would be well-suited for roles such as: Senior System Engineer (Server), Solution Architect, Lead Senior System Engineer.
Markus's most recent position is Senior System Engineer (Server) at EMS Chemie.
In recent years, Markus has worked for EMS Chemie, Oberfinanzdirektion Karlsruhe, and Falcon Privatebank AG.
Markus is most experienced in industries like Telecommunication, Banking and Finance, and Automotive. Markus also has some experience in Manufacturing, Government and Administration, and Chemical.
Markus is most experienced in business areas like Information Technology, Project Management, and Operations.
Markus has 55 certificates. Among them, these include: SC900 - Microsoft Security, Compliance and Identity Fundamentals Training, AppSense Certified Administrator Training, and Access Gateway 4.
The availability of Markus needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 11 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Similar freelancers
Discover other experts with similar qualifications and experience
Miguel S.
Markus I.
Marco F.
Stephan L.
Christian F.
André G.
Milivoje R.
Dirk B.
Alagi M.
Tarik G.
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a Senior System Engineer (Server)
Jin-Ho Y.
John R.
Christian E.
Thorsten L.
Frank J.
Mike B.
Boban S.
Iskender K.
Mark O.
Erkan S.
Nearby freelancers
Professionals working in or nearby Birmensdorf, Switzerland
Georgios S.
Patrick N.
Bertram D.
Claus N.
Vincent V.
Astrid B.
Marc P.
Paulo M.
Daniel S.
Peter W.
