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Portrait of a young businessman working at his desk in a modern officePortrait of a young businessman working at his desk in a modern office

Sr Windows Systems Administrator

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Sr. Windows Administrator Job Description


We are looking to hire a skilled and motivated Sr. Windows Server Administrator who will be responsible for the day to day operations of the infrastructure systems to meet the required SLA's for both the enterprise and customer facing operations.


The Sr. Windows Administrator will manage and maintain our Windows systems and servers. In this role, you will be responsible for installing or upgrading Windows-based systems and servers, managing user access, manage and monitor Windows services, and maintaining the security and stability of the Windows server platform.


To ensure success as a Windows Administrator you should have in-depth knowledge of Windows server setup, deployment, and maintenance, scripting skills, and the ability to solve complex IT issues, and ensures the smooth running of the company’s networking and server systems, while maintaining a high level of security.



  • Manage Active Directory Services, including DNS, DHCP, Network Access Server.
  • Manage Active Directory Federation Services (ADFS).
  • Manage Directory Synchronization Services.
  • Manage Microsoft Azure AD Platform.
  • Assessing performance, stability, security, and scalability of installed Windows systems.
  • Perform Windows Server installation, upgrades, updates, and migrations.
  • Providing technical support for staff and back-end system users.
  • Troubleshooting system and server errors.
  • Reviewing system error logs and user-reported errors.
  • Monitoring, managing capacity, efficiency, availability and scalability.
  • Acquire, test and install security and system patches.
  • Acquire, test and install system drivers and firmware.
  • Managing user access.
  • Manage file and print services.
  • Monitoring system performance.
  • Maintaining server security.
  • Manage and maintain data center operations.
  • Participate in on-call rotation.



  • Bachelor’s degree in Information Technology or equivalent experience.
  • Proven work experience as a Senior Windows Administrator in large complex enterprise.
  • Detailed knowledge of Windows server setup, deployment, and maintenance on physical, VMWare and Cloud platforms.
  • Strong knowledge in automation and PowerShell scripting.
  • Strong experience in Active Directory, including updates and upgrades.
  • Security Groups, DFS, GPOs, ACLs, DACLs, DNS, DHCP, FTP services.
  • Strong experience with patch management, vulnerability assessment and management.
  • Experience in managing Azure AD, SSO, SSLs, Office365.
  • Strong experience with Windows server 2003, 2008, 2012, 2016, 2019.
  • Familiarity with networks including LAN and WAN.
  • Good problem-solving skills.
  • Good analytical and communication skills.