Systems Administrator

General information

Requisition #

R70282

Locations

USA-TX-Dallas, USA-HI-Halawa, International-Philippines-Subic Bay, International-Guam-Yigo

Posting Date

08/25/2026

Security Clearance Required

Secret

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 motivated, career and customer-oriented Systems Administrators to join our team in Oahu Hawaii, Guam, Dallas Texas, and the Philippines.

Responsibilities include but are not limited to:

• Validates the configuration and performance of local area networks (LAN) and wide area networks (WAN) to meet organizational requirements.
• Oversee the administration of server operating systems and ensure the integrity of data storage and backup systems.
• Manage system upgrades and coordinate with vendors to resolve high-level technical issues.
• Provides technical oversight for the IT systems required for Distribution Center operations and program management support.
• Develop and maintain secure communication links for logistics platforms operating across diverse theater locations.
• Prepare comprehensive technical documentation and system architecture diagrams for senior review and mission coordination.
• Provides leadership, guidance, and mentoring to subordinate staff.

NOTE: Multiple levels of seniority are available based on qualifications and experience. Please see below.

Minimum Qualifications:

Senior Level

• Bachelor's degree in Information Technology, Computer Science, or a related field required and 10+ years of position-relevant experience (additional experience may be substituted in lieu of education).
• Experience in formal document approval and acting as a Functional Lead for IT service delivery and infrastructure sustainment.

Midlevel

• Bachelor's degree in Information Technology, Computer Science, or a related field required and 3+ years of position-relevant experience.
• Proficient in drafting technical documentation and following established SOPs for systems administration.

Junior Level

• Bachelor's degree in Information Technology, Computer Science, or a related field required.
• Ability to draft basic technical documentation and follow instructions for system maintenance.

Preferred Qualifications:

• CompTIA Security+ or equivalent IAT Level II certification.
• Experience with cloud-based infrastructure and virtualized environments in a military or Government setting.

Clearance Required:

• Must hold an active Secret Clearance

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 access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

*MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.*