System Administrator

MANTECH seeks a motivated, career and customer-oriented System Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure capabilities for a global workforce that supports a wide range of national defense missions. This role directly supports the Enterprise Infrastructure Services (EIS) organization-the foundation of all Enterprise Information Technology (EIT) for MPO.

Responsibilities include but are not limited to:

• Configure, administer, and maintain Windows Server operating systems, Active Directory (AD), and associated enterprise services.
• Administer VMware environments utilizing vCenter and ESXi, with a primary focus on user/account management, permissions, resource allocation, and baseline virtual machine (VM) troubleshooting.
• Provide support for implementation, troubleshooting, and day-to-day operations of IT systems, client/server hardware, storage, and network devices.
• Assist with basic Linux operating system troubleshooting and support where integrated with enterprise environments.
• Support dispatch systems, hardware diagnostics, and problem resolution across enterprise infrastructure.
• Monitor system health, optimize system operations, and participate in capacity analysis and performance tuning.
• Analyze and resolve Tier II/III problems associated with server hardware, operating systems, applications, and enterprise software integration.

Minimum Qualifications:

• Bachelor's degree in technical discipline from an accredited college or university.
• 20 years' experience as a System Engineer/System Administrator in programs and contracts of similar scope, type and complexity is required.
• Demonstrated experience in planning and leading Systems Engineering/Administration efforts is required.
• Proven hands-on experience in Windows Server administration, user account management, and group policy (GPO).
• Hands-on experience with VMware vCenter and ESXi
• Demonstrated experience with modern automation, configuration or monitoring tools such as Splunk, PowerShell or Ansible.
• IAT Level II certification (DoD 8140 required within 60 days of starting employment; acceptable certifications include Security+ CE, CCNA-Security, CySA+, GICSP, GSEC, CND, or SSCP).

Preferred Qualifications:

• Microsoft Certified: Windows Server Hybrid Administrator Associate or equivalent enterprise Windows certification.
• VMware Certified Technical Associate (VCTA) or VMware Certified Professional (VCP).
• Experience with enterprise storage platforms, particularly NetApp.
• Experience supporting cross-platform integration between Windows Active Directory and Red Hat Enterprise Linux (RHEL) systems.
• Scripting capability (e.g., PowerShell, Bash) for automating routine administrative tasks and account workflows.

Clearance Requirements:

• Must have a current/active Top Secret/SCI with Polygraph.

Physical Requirements:

• The person in this position must be able to remain in a stationary position 50% of the time.
• Occasionally move about inside the office to collaborate with other leaders/teams, use standard office automation equipment, and engage in virtual communication.