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Senior Windows System Administrator
Senior Windows System AdministratorTier4 Group • Johns Creek, North Carolina, United States
Senior Windows System Administrator

Senior Windows System Administrator

Tier4 Group • Johns Creek, North Carolina, United States
1 day ago
Job type
  • Full-time
  • Quick Apply
Job description

Job Title : Senior Windows System Administrator

Location : Johns Creek, Georgia

Employment Type : Contract to Hire

Overview :

Our client is seeking a seasoned Senior Windows System Administrator to take ownership of maintaining, optimizing, and securing their Microsoft-based infrastructure. This individual will play a critical role in ensuring high system availability, supporting enterprise applications, and leading initiatives to enhance performance, scalability, and automation across the IT environment.

Key Responsibilities :

  • Manage, monitor, and maintain Windows Server environments (2016 / 2019 / 2022) and Active Directory infrastructure.
  • Administer and support Group Policy, DNS, DHCP, and other core Windows services.
  • Oversee patch management, system upgrades, and performance tuning to ensure optimal uptime and security.
  • Manage virtualization environments (VMware or Hyper-V) and perform regular capacity planning and optimization.
  • Implement and support backup, disaster recovery, and business continuity solutions.
  • Partner with Security teams to maintain compliance and implement security best practices across all systems.
  • Develop automation scripts and tools using PowerShell or similar scripting languages to streamline administrative tasks.
  • Provide advanced troubleshooting and escalation support for complex system and application issues.
  • Document infrastructure configurations, procedures, and operational standards.
  • Mentor junior system administrators and contribute to process improvements and technology roadmaps.

Qualifications :

  • Bachelor’s degree in Information Technology, Computer Science, or related field (or equivalent experience).
  • 7+ years of experience in Windows system administration in an enterprise environment.
  • Strong expertise with Windows Server, Active Directory, and Microsoft 365 administration.
  • Experience managing virtualization platforms (VMware vSphere or Microsoft Hyper-V).
  • Proficiency in PowerShell scripting and task automation.
  • Knowledge of cloud environments (Azure or AWS) and hybrid integrations is preferred.
  • Familiarity with security frameworks, patching tools, and monitoring systems (e.g., SCCM, SolarWinds, or equivalent).
  • Excellent problem-solving, communication, and documentation skills.
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    System Administrator • Johns Creek, North Carolina, United States