Job Description

ManTech seeks a motivated, career- and customer-oriented Linux Systems Administrator to join our team in Hanover, MD .
This role supports a global workforce executing mission-critical operations in defense of our Nation. As part of the Enterprise Infrastructure Services (EIS) organization, you will help manage core infrastructure and support the delivery of Enterprise Information Technology (EIT), the foundational platform for all MPO users. You will work closely with customers, Integrated Product Teams (IPTs), and vendors within Data Center & Compute Services to ensure system functionality, security, and availability.

Responsibilities include, but are not limited to:

• Provide Systems Administration support for CNOS labs in a Help Desk capacity and collaborate with lab teams across locations

• Maintain and manage Linux and Windows user accounts, profiles, and ticket queues, ensuring prompt support for developer requests

• Assist other lab managers within the domain architecture and perform racking, stacking, loading, and configuration of workstations and servers

• Build, configure, and maintain secure server and system environments, including system analysis, design, architecture, and hardware/network management

• Perform installation, refresh, and modernization of servers and system components—both remotely and on-site

• Document system configurations including computers, networking devices, and peripheral hardware

Minimum Qualifications:

• Bachelor’s degree from an accredited college or university in a technical discipline

• Fifteen (15) years of experience as a System Administrator in programs and contracts of similar scope, type, and complexity

Preferred Qualifications:

• Experience deploying, upgrading, or maintaining servers and systems

• Knowledge of Linux operating systems supporting Tacacs+ and Syslog

• Experience with Active Directory, DHCP, DNS, and LDAP networking concepts

• Hands-on experience with cabling, racking, and stacking IT equipment

• Familiarity with the Jira ticketing system

• Understanding of core networking components

Clearance Requirements:

• Must have a current/active TS/SCI with Polygraph

Physical Requirements:

• Bending, carrying, kneeling, lifting, light work up to 20 lbs., reaching, repetitive motions, sedentary work, walking, working with data

• Ability to handle stress and work under pressure

• Ability to use MS Office and a PC

• Strong analytical or critical thinking, interpersonal skills, leadership, listening, multi-tasking, oral/written communication, and organizational skills

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