Siniša V.

Windows System Administrator

Banja Luka, Bosnia and Herzegovina

Experience

Jun 2019 - Present
6 years 7 months
Banja Luka, Bosnia and Herzegovina

Windows System Administrator

Pošte Srpske A.D.

  • Manage Kaspersky Security Center for about 1700 workstations
  • Configure and virtualize Windows 2019 Active Directory and domain controllers
  • Administer Windows Server 2019 and Windows Server 2022 advanced operations
  • Manage HyperV & VMware virtualization
  • Perform SCCM OS imaging
  • Administer Azure AD and identity management
  • Handle patching and vulnerability management for software deployments
  • Use SCOM for monitoring and managing infrastructure
  • Troubleshoot incidents, including indicators or precursors, using SIEM
  • Operate ticketing systems
  • Build security policies in the domain and on Kaspersky Security Center
  • Document processes and procedures and maintain infrastructure documentation
  • Manage Windows workstations and provide 1st and 2nd line support onsite and remote
  • Perform backup and patching
  • Deploy and configure Linux server systems
  • Facilitate remote interactions and videoconferencing
  • Plan and implement network and application solutions
  • Test and integrate new operating systems, drivers, and patches
  • Use PowerShell scripting for automation
  • Manage Mac OSX and Mac OS devices
  • Install software and hardware
  • Administer mobile device management (MDM)
  • Resolve printing and software problems
  • Repair mobile devices
  • Work with DELL, IBM, and Fujitsu Siemens equipment
  • Collaborate with vendors (Adobe, AutoCAD, Microsoft, Kaspersky)
  • Administer and coordinate software and hardware orders and licenses
  • Create guides and labs and provide training
Mar 2019 - Jun 2019
4 months
Munich, Germany

IT Support Technician

Westwing Home & Living

  • Work on Active Directory and JAMF
  • Configure new laptops from images and onboard Mac and Windows devices
  • Resolve IT tickets for offices in Germany and Poland
  • Manage GSuite, Office 365, Matrix42, PowerShell, and cloud inventory and reporting
  • Utilize IBM SIEM QRadar
  • Configure and virtualize Windows 2012 R2 Active Directory and domain controllers
  • Perform advanced operations on Windows Server 2016 and Windows Server 2019
  • Use Microsoft Teams, Webex, and Zoom for collaboration
  • Resolve printing and software problems
  • Work with Windows Server 2016, 2022, and 2025
  • Implement EDR and XDR cybersecurity solutions
  • Support Skype for Business and Microsoft Exchange
  • Manage vSphere and VMware ESXi environments
  • Administer Ubuntu and CentOS systems
Feb 2003 - Feb 2019
16 years 1 month
Banja Luka, Bosnia and Herzegovina

Windows System Administrator

Pošte Srpske A.D.

  • Manage Kaspersky Security Center 11 for about 1000 workstations
  • Configure and virtualize Windows 2008 R2 & 2012 R2 Active Directory and domain controllers
  • Administer Windows Server 2016 advanced operations
  • Manage HyperV & VMware virtualization
  • Work with SAN and NAS technologies
  • Manage Office 365 and ticketing systems
  • Perform data and disaster recovery
  • Build security policies in Active Directory and on Kaspersky Security Center
  • Manage Office applications
  • Provide 1st and 2nd line support onsite and remote
  • Perform OS imaging (Acronis), backup, and patching
  • Deploy and configure Linux server systems
  • Facilitate remote interactions, videoconferencing, and network sharing
  • Plan and implement network and application solutions including TCP/IP, VPN, LAN, WAN
  • Use PowerShell scripting for automation
  • Manage Mac OSX and Mac OS devices
  • Install and troubleshoot software and hardware
  • Resolve printing and software issues
  • Repair mobile devices
  • Collaborate with vendors to coordinate software and hardware orders, guides, labs, and training classes

Summary

Experienced Windows System Administrator with a demonstrated history of working in State Postal Services. Skilled in Windows Server 2025 and Windows Server 2019&2022, VMware ESXi, Managing Active Directory&DC, managing Linux systems, MS Azure Cloud, MS 365,Win 10&11, remote tools for troubleshooting and deployment, security and monitoring servers, ticketing systems, etc.etc.

Mac OSX managing and smartphones fixing as additional skills.

Languages

English
Advanced
German
Elementary

Education

Oct 1979 - Jun 1983

El.Technical Higher School

Certifications & licenses

MS-900 Exam: Microsoft 365 Fundamentals

AZ-900 Exam Preparation: Microsoft Azure Fundamentals

MCSA

Microsoft

MCP

Microsoft

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