System Administrator

MANTECH•Laurel, MD

4d•$128,000 - $214,400•Onsite

About The Position

MANTECH is seeking a motivated, customer-oriented System Administrator to join its team in Laurel, Maryland. The role supports the Enterprise Infrastructure Services organization, delivering enterprise infrastructure capabilities for a global workforce supporting national defense missions. The position involves administration and maintenance of Windows Server, Active Directory, VMware, and related enterprise infrastructure, along with troubleshooting and operational support across integrated systems. The successful candidate will provide Tier II/III support, monitor and optimize system health, and contribute to capacity analysis and performance tuning. A current and active Top Secret/SCI clearance with polygraph is required. The position is onsite and full time. The projected compensation range is $128,000 to $214,400.

Requirements

Bachelor’s degree in a technical discipline from an accredited college or university.
20 years of experience as a System Engineer/System Administrator in programs and contracts of similar scope, type, and complexity.
Demonstrated experience planning and leading Systems Engineering/Administration efforts.
Hands-on experience administering Windows Server, user accounts, and Group Policy (GPO).
Hands-on experience with VMware vCenter and ESXi.
Experience with modern automation, configuration, or monitoring tools such as Splunk, PowerShell, or Ansible.
IAT Level II certification under DoD 8140 is required within 60 days of starting employment; acceptable certifications include Security+ CE, CCNA-Security, CySA+, GICSP, GSEC, CND, or SSCP.
Current/active Top Secret/SCI clearance with polygraph.
Ability to remain stationary 50% of the time and occasionally move about the office, use standard office automation equipment, and engage in virtual communication.

Nice To Haves

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, such as PowerShell or Bash, for automating routine administrative tasks and account workflows.

Responsibilities

Configure, administer, and maintain Windows Server operating systems, Active Directory, and associated enterprise services.
Administer VMware environments using vCenter and ESXi, focusing on user and account management, permissions, resource allocation, and baseline virtual machine troubleshooting.
Support 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 in 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 involving server hardware, operating systems, applications, and enterprise software integration.
Plan and lead Systems Engineering/Administration efforts.