Windows System Administrator

Writing a great windows system administrator resume is important because it is one of the first things a potential employer will see when they are considering you for a position. It is your opportunity to make a good first impression and sell yourself as the best candidate for the job.

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Resume samples

Raysha Schatz | (649) 361-4179 | 2250 Derrick Court


I have over 4 years of experience as a Windows System Administrator. In this role, I was responsible for managing and maintaining the systems that run our business. This included ensuring that all servers were up and running, monitoring performance, and keeping security up-to-date. I also provided support to users when they had problems with their computers or applications. My skills in troubleshooting and problem solving helped keep our systems running smoothly.


Senior Windows System Administrator at Microsoft Corporation, VAJun 2022 - Present

  • Led the installation of 100 new Windows systems, ensuring that each system met company standards for security and performance.
  • Monitored and maintained 200 existing Windows systems, applying updates and patches as needed to keep them secure and running smoothly.
  • Trained junior administrators on best practices for managing Windows systems, helping them to become more efficient in their roles.
  • Investigated and resolved 50 incidents involving windows systems, often working with other teams such as networking or application support to resolve complex issues.

Windows System Administrator at Dell Technologies Inc., VAJul 2018 - May 2022

  • Implemented a new backup system that saved the company $10,000 per year.
  • Migrated the company's email server to a new platform, resulting in increased reliability and decreased downtime.
  • Configured the firewall to block all incoming traffic from known malicious IP addresses, preventing attacks.
  • Wrote custom scripts to automate various tasks, saving the team hours of work each week.


Associate of Arts in Computer Science at George Mason UniversityAug 2014 - May 2018

Some skills I've learned are programming languages such as Java and C++, as well as HTML and CSS.


  • Windows
  • System Administration
  • Active Directory
  • Group Policy Management
  • Exchange Server administration
  • SharePoint administration

Portia Deavours | (167) 339-3650 | 6127 S. Lindbergh Blvd.


I am a Windows System Administrator with over 4 years of experience. I have experience administering and managing Active Directory, DHCP, DNS, Group Policy Objects (GPOs), and user accounts. I also have experience working with Microsoft Exchange Server 2010/2013/2016. In addition to my hands-on experience, I also hold a Bachelor's degree in Information Systems from XYZ University.


Senior Windows System Administrator at Dell, MOMar 2022 - Present

  • Led the installation of a new Windows Server 2008 R2 domain controller, which resulted in significant improvements to network reliability and performance.
  • Implemented Group Policy Objects (GPOs) to centrally manage server settings and reduce administrator workload.
  • Streamlined patch management processes by implementing WSUS on all servers, resulting in more efficient security updates and less downtime.
  • Configured Active Directory Federation Services (ADFS) to enable single sign-on for users accessing internal applications from external networks.
  • Set up monitoring using System Center Operations Manager 2007 R2 to proactively identify potential issues with servers and services.
  • Automated various tasks using PowerShell scripts, including user account creation/management, printer deployment, and software installs/updates.

Windows System Administrator at Microsoft, MOAug 2018 - Mar 2022

  • Implemented a group policy that increased system security and decreased login times by 30%.
  • Led the team in migrating 100 users to Windows 10 with zero downtime.
  • Reduced help desk tickets by 15% through proactive monitoring and user training.
  • Created custom scripts to automate various tasks, resulting in a time savings of 2 hours per day.
  • Documented procedures for all common server maintenance tasks.
  • Successfully completed annual PCI compliance audits with no critical findings.


Associate of Science in Computer Science at Missouri State UniversitySep 2013 - May 2018

I have learned programming, software engineering, database management, and computer hardware skills while studying Associate of Science in Computer Science.


  • Windows Server
  • Active Directory
  • Group Policy
  • Exchange Server
  • SharePoint Server
  • System Center Configuration Manager (SCCM)
  • Windows PowerShell