Linux Administrator

AMERICAN SYSTEMS

Linux Administrator responsible for maintaining Linux infrastructure technology at AMERICAN SYSTEMS. Collaborating with system design personnel and ensuring 24x7 uptime service in a government contracting environment.

Posted 6/24/2026full-timeGaithersburg • Maryland • 🇺🇸 United StatesMid-LevelSenior💰 $110,000 - $145,000 per yearWebsite

Tech Stack

Tools & technologies

ApacheDNSJavaLinuxMySQLPHP

About the role

Key responsibilities & impact

Collaborate with onsite system design personnel to implement new system software and hardware.
Maintain and develop Linux infrastructure technology.
Deliver 24x7x365 uptime service.
Provide systems administration-related solutions.
Maintain best practices for managing services and computer systems.
Monitor system performance and capacity planning.
Manage, coordinate, and implement software upgrades, patches, network hardware, and workstations.
Install and configure Linux systems, back-end databases and scripts.
Perform system maintenance by reviewing error logs.
Provide technical and troubleshooting support for service problems.
Create system backups and new stored procedures.
Develop and maintain system recovery procedures.
Install and maintain system security.
Create and maintain comprehensive documentation for all implemented systems.
Maintain all internet requests inclusive of DNS, RADIUS, Apache, MySQL, PHP.
Enhance, maintain, and create tools for the Linux environment and its users.
Analyze hardware requirements and make acquiring recommendations.

Requirements

What you’ll need

Bachelor’s level degree in Computer Science, Engineering, or a related field
Active Secret security clearance
U.S. Citizenship required for the purpose of obtaining/holding a U.S. security clearance
At least five (5) years of experience in Linux Administration (RedHat, CentOS, Ubuntu)
Extensive knowledge of Linux server setup, deployment, and maintenance
Firm understanding of networking protocols and server security mechanisms
IAT Level II certification (Security+ CE, CCNA Security, CySA+, GICSP, GSEC, SSCP)
Programming skills (RedHat, Java)

Benefits

Comp & perks

Healthcare benefits
Paid leave
Retirement plans
Insurance programs
Education and training assistance

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Linux AdministrationRedHatCentOSUbuntunetworking protocolsserver security mechanismssystem performance monitoringsystem maintenanceback-end databasesscripting

Soft Skills

collaborationtroubleshootingdocumentationcapacity planningproblem-solvingtechnical supportcoordinationbest practices managementservice managementcommunication

Certifications

IAT Level IISecurity+ CECCNA SecurityCySA+GICSPGSECSSCP