Posting (External)Advanced Systems Administration Specialist - Linux / Windows / DoD Infrastructure

Adv Systems Administration Specialist

Manassas, VA

Pay Estimated: $52.07-$57.07/Hour

Active Secret Clearance Required to Start

Contribute to a company at the forefront of mission-critical systems and technologies in defense and security. This leader in global defense integrates advanced technology to deliver information and insights on the battlefield, offering roles that support security and technological superiority across multiple domains.

Responsibilities:

• Perform administration of physical and virtual server operating systems (Linux and Windows)
• Install, configure, maintain, and troubleshoot server hardware, virtual platforms, and network interfaces
• Conduct systems analysis and implementation to ensure infrastructure remains current with evolving technologies
• Perform OS and vendor software patching in accordance with security compliance requirements
• Monitor and optimize server performance using enterprise monitoring tools
• Manage Active Directory, Exchange, and Windows server environments
• Support RHEL 8/9 and Red Hat-based Linux systems
• Troubleshoot and resolve issues across server OS, storage, and networking layers
• Configure and maintain firewalls and network switches (Cisco, Juniper)
• Develop and execute automation scripts to streamline repetitive administrative tasks
• Grant application permissions and provide user support in classified environments

Qualifications:

• U.S. Citizenship is required by Federal Law
• Bachelor's degree in Computer Science, related field, or equivalent experience
• Active Department of Defense (DoD) Secret Security Clearance required at time of hire
• 5+ years relevant systems administration experience
• Strong experience with Linux (RHEL 8/9, Red Hat)
• Strong experience with Windows Server, Active Directory, Exchange
• Experience with virtualization platforms and physical server hardware
• Knowledge of networking fundamentals, including firewalls and Cisco/Juniper switches
• Experience with server patch management and security compliance
• Ability to create and maintain automation scripts
• Experience supporting systems within classified/secure DoD environments
• On-site support required within a classified facility

Moseley Technical Services, Inc. is an AA/EEO/Veterans/Disabled Employer.

What to Expect

• Applicants selected for employment will be required to pass a pre-employment drug screening and background investigation, which may include education, criminal, and work history verifications.
• Accepted applicants will be eligible for benefits, including medical and supplemental insurance, and a 401(k) plan. Appreciation and gratitude for employees are hallmarks of organizations with low turnover.
• Final position level and pay will be based on experience.

Resources

• To apply, send a resume to: View email address on click.appcast.io
• For more active job openings: Search Jobs
• For more information about Moseley, visit: About Us

Moseley Technical Services, Inc. (Moseley) was incorporated in 1994 to provide engineering and professional services to the aerospace/defense, manufacturing, government, and commercial industries. Our Mission is to deliver superior service to our customers and employees. We have been successful in our vision by building long-term relationships with customers and employees through integrity, transparency, and appreciation.

We stand by our 30-year-old commitment of "World Class Service. World Class Company."