Gregor Sulewski-IT system administrator
Check rate
Experience
Client & Application Consultant
Rolls Royce
- Migrating legacy machines from the “red world” to the “green world”
- Adapting Active Directory and Group Policy Objects for Microsoft Server/Client versions 2000/2003/2008/2008R2/2029
- Utilizing SMP methodologies
SMP IT project manager
Marienhaus
- Providing printer and server support and structuring hospital IT
- Administering tools, systems, and managing personnel and budget responsibility
- Conducting procurement and network setup
Project manager for support setup
DMG-MORI
- Managing support setup on Windows 9x, XP, 7, 8.1 and 10 platforms
- Administering Exchange 6.0 and Celos, Netbox environments
- Using tools such as Active Directory, LDAP, IoT Connector NanoBox Support, Messenger V2, LAN-Desk and SCCM 2007/2012/2016
- Optimizing wireless LAN connections at trade fair venues
IT support fulfilment
Rewe-Digital
- Supporting warehouse and delivery service scanners with Messenger V2 and LAN-Desk
- Optimizing SCCM 2007/2012/2016 and wireless LAN connections and access points
- Implementing ITIL process optimizations for infrastructure in Tivoli delivery warehouses and customer drivers
- Using Remedy ITSM for incident and service management
SCCM Consultant
QSC AG
- Troubleshooting client issues and creating SCCM custom reports
- Managing software rollouts and batch query creation
- Deploying software and operating system images using SCCM and OSD
- Administering network and monitoring site and client status
- Updating SCCM servers and planning Windows 10 images
- Supporting migrations and providing test assistance
Senior Consultant
ConfigPoint
- Adjusting Group Policy Objects and planning rollouts
- Providing technical consulting and implementing IT projects
- Advising customers and troubleshooting clients during Microsoft product introductions and migrations
- Planning, monitoring and executing projects as project lead
- Creating SCCM custom reports and managing software rollouts
Technical Consultant
GAD
- Deploying SCCM and planning rollouts
- Advising a bank on migration to Windows 7 in 540 branches
- Performing site analysis and PaaS/SaaS server administration
- Managing release upgrades of self-service devices
- Handling incidents and monitoring client status
- Supporting EPO server and McAfee client environments
- Updating SCCM servers and planning Windows 10 images
SCCM Consultant, 3rd Level Support
Boehringer Ingelheim
- Automating SCCM client tasks and creating batch scripts
- Providing call and problem management with user contact in German and English
- Coaching 2nd level support staff on basic SCCM tasks
- Documenting solution paths for 2nd level colleagues
- Preparing and provisioning workstations
Client Security Tools Subproject Lead
BASF
- Adjusting GPO policies for encryption and migration to Windows 10
- Planning and executing process evaluations and migration planning for Windows 10 rollout
- Creating installation documentation and testing software packages
- Performing a global rollout under Windows 7 for approximately 100,000 clients with Office 2010
- Advising customers on the introduction and migration of Microsoft products
Administrator
Handelsschule Dr. Lax
- Planning, overseeing, administering and building IT infrastructure, including two Windows Server 2000 systems
- Setting up training rooms, installing clients and servers, and adjusting Active Directory
- Handling incidents and providing 1st level support
- Installing and configuring SQL databases
- Building and securing network environments with routers, switches, and cabling
- Performing database maintenance (SQL)
- Monitoring internet network connections and data flow
- Troubleshooting and error fixing in 1st level support
- Managing server-side backup software
- Supporting SAP, CAD, Lotus Notes, Suse Linux, Oracle
- Working with ticketing solutions such as ARS and Remedy User
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Education, Manufacturing, Healthcare, Information Technology, Retail, and Pharmaceutical.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Project Management, Procurement, and Operations.
Summary
IT system administrator with extensive experience in administering server and client systems, project management, and IT consulting.
Expertise in Microsoft Server/Client, SCCM, Active Directory, and ITIL.
Proven success in optimizing IT infrastructures and implementing solutions in various industries.
Skills
- Moved Old Computers From The “Red World” To The “Green World”
- Ad/Gpo
- Microsoft Server/Client 2000/2003/2008/2008r2/2029 Adapted
- Printer Support
- Server Support
- Building It Structures For Hospitals
- Administration Of Tools And Systems
- Personnel Responsibility
- Budget Responsibility
- Procurement
- Network Setup
- Windows 9x / Xp / Windows 7 / Windows 8.1 / Windows 10
- Exchange 6.0
- Celos
- Netbox
- Operational Tools
- Microsoft Active Directory (Ad)
- Ldap
- Iot Connector Nanobox Support
- Messenger V2
- Lan-Desk
- Sccm 2007 / 2012 / 2016
- Tivoli
- Remedy – Itsm
- Coaching
- Powershell
- Client Troubleshooting
- Sccm Custom Reporting
- Software Rollouts
- Query Creation
- Sccm Deployment (Software And Osd Deployment)
- Analysis Of Site And Client Status
- Sccm Server Updates
- Win10 Image Planning
- Migration Support
- Batch Creation
- Test Support
- Documentation
- Gpo Adjustments
- Rollout Planning
- Technical Consulting And Implementation Of It Projects
- Advising Customers On The Introduction And Migration Of Microsoft Products
- Planning, Monitoring, And Execution As Project Lead At Customer Sites
- Incident Handling
- Support For Epo Servers
- Support For Mcaffee Clients
- Architecture Concepts
- Automation Of Workstation Provisioning
- Client Security Tools
- Vpn
- Encryption
- Gpo Policy Adjustments
- Migration Planning To Windows 10
- Creation Of Installation Documents
- Testing Packages For Worldwide Rollouts
- Disciplinary Leadership Of Employees
- Packaging With Ca Software
- Testing Installations
- Support For San
- Client Reinstallation With Windows 7 And Office 2010 In Altiris
- Print Server Setup 2008
- Implementation Of Itil
- Building Network Environments With Routers, Switches, And Cabling Of Servers/Clients
- Client Support For Small And Medium-Sized Companies
- Server-Side Software For Backups
- Special Software From T-Online For Inbound Activities
- Sap
- Cad
- Lotus Notes
- Database Maintenance (Sql)
- Monitoring Of Internet Networks
- Network Connections
- Data Flow Control
- Troubleshooting In 1st Level Support
- Installation And Setup Of Sql Databases
- Network Security
- Lotus Notes Knowledge
- Suse Linux
- Oracle
- Ticket Solutions With Ars
- Remedyuser
Languages
Education
Training as a steel construction mechanic
MIT Mainz
Advanced training as a system engineer for Windows Server/Client · Mainz, Germany
Certifications & licenses
Investment Bank Saxony-Anhalt
Rolls Royce, Friedrichshafen
Client & Application Consultant
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Gregor is based in Magdeburg, Germany.
Gregor speaks the following languages: English (Advanced), German (Elementary).
Gregor has at least 14 years of experience. During this time, Gregor has worked in at least 10 different roles and for 10 different companies. The average length of individual experience is 1 year and 5 months. Note that Gregor may not have shared all experience and actually has more experience.
Based on recent experience, Gregor would be well-suited for roles such as: Client & Application Consultant, SMP IT project manager, Project manager for support setup.
Gregor's most recent position is Client & Application Consultant at Rolls Royce.
In recent years, Gregor has worked for Rolls Royce and Marienhaus.
Gregor is most experienced in industries like Education, Manufacturing, and Healthcare. Gregor also has some experience in Information Technology, Retail, and Pharmaceutical.
Gregor is most experienced in business areas like Information Technology, Project Management, and Procurement. Gregor also has some experience in Operations.
Gregor has recently worked in industries like Healthcare and Aerospace and Defense.
Gregor has recently worked in business areas like Information Technology, Procurement, and Project Management.
Gregor attended education in Training as a steel construction mechanic.
Gregor has 4 certificates. Among them, these include: Investment Bank Saxony-Anhalt, Rolls Royce, Friedrichshafen, and Client & Application Consultant.
The availability of Gregor needs to be confirmed.
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Average rates for similar positions
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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 25 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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