Senior Windows & Linux Systems Administrator

MANTECH; Hanover (MD); On-site; USD 90,000 - 140,000; Full time

Job summary

MANTECH in Hanover, MD is seeking a motivated Windows/Linux Systems Administrator to support enterprise infrastructure for a global workforce. You will work with customers, IPTs, and vendors to implement and ensure compliance of advanced EIT capabilities.

The role requires strong experience with Windows 11, Linux (Ubuntu/Fedora), Juniper networking, Active Directory, DNS/DHCP, RDS, Hyper-V, and PowerShell. TS/SCI clearance with polygraph is required.

Qualifications

• Bachelor’s degree in a technical discipline; 10 years of SysAdmin experience or 5 additional years without degree.
• Experience with Windows 11 and Linux environments.
• Networking experience with Juniper.
• Active Directory with Group Policy, DNS, DHCP, and RDS/Hyper-V.
• PowerShell scripting proficiency

Responsibilities

• Provide day-to-day operations, monitoring, and problem resolution for Windows/Linux systems.
• Manage Windows and Linux infrastructure configuration and operations.
• Tier 1 and Tier 2 support and escalation handling.
• Communicate status to management and customers.

Skills

Customer-focused

Team collaboration

Problem-solving

Education

Bachelor’s degree in a technical discipline

Tools

Windows

Linux (Ubuntu/Fedora)

Juniper networking

DNS

DHCP

Active Directory

Group Policy

Remote Desktop Services

Hyper-V

PowerShell scripting

Job description

MANTECH in Hanover, MD is seeking a motivated Windows/Linux Systems Administrator to support enterprise infrastructure for a global workforce. You will work with customers, IPTs, and vendors to implement and ensure compliance of advanced EIT capabilities.

The role requires strong experience with Windows 11, Linux (Ubuntu/Fedora), Juniper networking, Active Directory, DNS/DHCP, RDS, Hyper-V, and PowerShell. TS/SCI clearance with polygraph is required.