Linux Systems Administrator

ASRC Federal; Maryland; On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Health care

Dental

Vision

Life insurance

401(k)

Job summary

ASRC Federal is seeking a Senior Linux Systems Administrator with an active Top Secret clearance to support DEVCOM-CBC/TDAC at Aberdeen Proving Ground, MD. You will engineer, deploy, secure, and maintain enterprise RHEL infrastructure, automate tasks with Ansible, and enforce strict security baselines.

Responsibilities include container management with Docker, storage via LVM, and integrating with LDAP/AD for CAC/PKI MFA. DoD credentials and security compliance are essential assets for this role.

Qualifications

• BA/BS in Computer Science, IT, Engineering or related field with 7+ years of relevant work experience.
• 3+ years Red Hat Enterprise Linux experience.
• Active Top Secret clearance required.

Responsibilities

• Architect, deploy, configure, maintain, and decommission RHEL 7/8/9 servers with kernel updates and lifecycle management.
• Develop and execute Ansible playbooks; write Bash scripts for automation.
• Manage systemd, SELinux in enforcing mode, and Docker container environments.
• Configure storage with LVM; deploy Samba and NFS shares.
• Support middleware and database tiers (Oracle DB, WebLogic, Apache, PostgreSQL, MongoDB).
• Apply DISA STIGs; remediate vulnerabilities using ACAS/Nessus; maintain IAMV and STIG compliance.
• Integrate RHEL with LDAP/AD for CAC/PKI-based MFA; manage DoD certificates.
• Monitor health and performance; perform root-cause analysis and optimization.

Education

Bachelor's degree in Computer Science or related field

Tools

Red Hat Satellite

Ansible

Docker

Samba

NFS

Oracle Database

WebLogic

Apache HTTP Server

PostgreSQL

MongoDB

ACAS/Nessus

LDAP/Active Directory

CAC/PKI

Job description

ASRC Federal is a leading government contractor furthering missions in space, public health and defense. As an Alaska Native owned corporation, our work helps secure an enduring future for our shareholders. Join our team and discover why we are a top veteran employer and Certified Great Place to Work

ASRC Federal Technology Solutions LLC is looking for a Linux System Administrator with an active Top Secret clearance to support their work with DEVCOM-CBC and the Transformation Decision Analysis Center (TDAC) organization. The Senior Linux Systems Administrator serves as a technical subject matter expert responsible for the engineering, deployment, configuration, security compliance, and lifecycle maintenance of enterprise Red Hat Enterprise Linux (RHEL 7, 8, and 9) infrastructure supporting U.S. Army operations. The candidate will manage system automation, identity management, storage configuration, application hosting integration, and vulnerability remediation in accordance with DoW and DISA standards.

Key Responsibilities

• Architect, deploy, configure, maintain, and decommission enterprise RHEL 7, 8, and 9 servers. Manage kernel updates, system upgrades, and package lifecycles via yum/dnf repositories integrated with Red Hat Satellite and centralized automation pipelines
• Develop, test and execute Ansible playbooks to automate day-to-day administrative tasks, configuration drifts, and routine maintenance. Write and maintain Bash scripts for system automation
• Manage systemd service orchestration, enforce strict SELinux policies in enforcing mode, and manage container runtime environments using Docker
• Configure and administer local block storage utilizing Logical Volume Manager (LVM). Deploy, secure, and maintain enterprise network share services including Samba and NFS
• Provide infrastructure level hosting support, system tuning, and OS prerequisites for enterprise middleware and database tiers, including Oracle Database, Oracle WebLogic, Apache HTTP Server, PostgreSQL, and MongoDB instances
• Apply and validate DISA Security Technical Implementation Guides (STIGs) across all Linux nodes. Perform vulnerability remediation using automated and manual methods based on ACAS/Nessus scan results to maintain continuous IAMV and STIG compliance
• Integrate RHEL systems with enterprise identity providers (LDAP / Active Directory) enforcing CAC/PKI-based multi-factor authentication. Issue, deploy, and maintain DoD PKI SSL/TLS certificates for server identification, secure communications, and client authentication
• Monitor system health, performance metrics, and logs using enterprise monitoring tools. Conduct root cause analysis on system degradation or outages, implementing performance optimizations and corrective actions

Required Qualifications

• Bachelor's degree (BA/BS) in Computer Science, Information Technology, Engineering, or a related field and 7+ years of relevant work experience
• 3 years of RedHat experience

Preferred Qualifications

• RedHat certification
• Linux+ certification
• DoW and RHEL system integration experience
• DoW vulnerability remediation experience
• Active Top Secret clearance

CLEARANCE LEVEL

• Minimum of an active or interim DoW TOP SECRET clearance.

EDUCATION REQUIRMENTS

• Bachelor's degree in Information Technology, Computer Science, or a related field or 4 additional years of experience

CERTIFICATION

• DoDI 8140.03 qualification for DCWF Work Role 451 Systems Administrator - Intermediate. Accepted foundational qualifications include certifications mapped to Work Role 451 Systems Administrator - Intermediate in the current DoD 8140 Qualification Matrix, such as Cloud+, Security+, and SSCP.

Preferred

• Security+
• SSCP
• Cloud+

Work Environment And Physical Demands

• This position primarily operates in a professional office environment at Aberdeen Proving Ground, MD, working within or alongside the DEVCOM-CBC TDAC organization. The role involves extended use of computer equipment and may require the candidate to move between buildings on the installation to support users and coordinate with government staff. Some work may involve access to classified facilities and systems. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this position.

We invest in the lives of our employees, both in and out of the workplace, by providing competitive pay and benefits packages. Benefits offered may include health care, dental, vision, life insurance; 401(k); education assistance; paid time off including PTO, holidays, and any other paid leave required by law.

The salary offered will depend on several factors including, but not limited to, relevant experience, skills, education, geographic location, internal equity, business needs, and other factors permitted by law. Posted pay ranges are a general guideline only and are not a guarantee of compensation or salary.

EEO Statement

ASRC Federal and its Subsidiaries are Equal Opportunity employers. All qualified applicants will receive consideration for employment without regard to race, sex, color, age, national origin, religion, disability, protected veteran status, or any other factor prohibited by applicable law.