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Windows System Administrator

Job in Duluth, Gwinnett County, Georgia, 30155, USA
Listing for: Tier4 Group
Full Time position
Listed on 2026-07-08
Job specializations:
  • IT/Tech
    Systems Administrator, Windows Server, Cloud Computing: Infrastructure & Operations
Salary/Wage Range or Industry Benchmark: 90000 - 120000 USD Yearly USD 90000.00 120000.00 YEAR
Job Description & How to Apply Below
Position: Windows System Administrator 5288

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 Power Shell 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 Power Shell 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, Solar Winds, or equivalent).
  • Excellent problem-solving, communication, and documentation skills.
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