Principal Systems Administrator

General information

Requisition # R62288 Locations USA-VA-Arlington Posting Date 08/04/2025 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Principal Systems Administrator to join our team in Pentagon, VA. The position is onsite.

Responsibilities include but are not limited to:

• Provide specialized support and troubleshooting for VIP users, including hardware, software, network, and application issues

• Manage and maintain computer systems, servers, and other IT infrastructure, ensuring optimal performance and security

• Manage VIP user accounts, permissions, and security access within the organization's IT environment

• Identify, diagnose, and resolve technical issues related to VIP user's IT needs

• Maintain accurate and up-to-date documentation of IT systems, procedures, and user support information

• Collaborate with other IT staff and stakeholders to ensure smooth IT operations and address VIP user needs

• Strong technical skills in areas such as Windows and Linux operating systems, network administration, virtualization, and security

• Excellent problem-solving and troubleshooting skills to quickly identify and resolve issues

• Strong communication and interpersonal skills to interact with VIP users and IT staff

• Experience in managing and supporting complex IT environments, especially for VIP users

• Managing desktop computers, servers, and other hardware devices for VIP users

• Installing, configuring, and updating software applications used by VIP users

• Troubleshooting and resolving technical issues related to VIP users' hardware, software, and network access

• Creating, modifying, and managing VIP user accounts and permissions

• Supporting and maintaining specialized software and hardware used by VIP users

• Providing training and support to VIP users on new software and hardware

• Managing Active Directory and other infrastructure core services

• Providing support for thin clients and virtual desktop environments

• Supporting and maintaining COT