Linux System Administrator

Everforth ECS is seeking a Linux System Administrator to provide temporary support to the Manpower & Reserve Affairs (M&RA) Customer. The selected candidate will be responsible for the administration, maintenance, and security of Linux-based systems hosted within the AWS GovCloud and MCCOG environments.

ResponsibilitiesU.S. Navy and DoD cybersecurity discussions, RPOC specifically means aRapid Assess and Incorporate Software Engineering (RAISE) Platform of Choice (RPOC)

System Administration:

Install, configure, maintain, and troubleshoot RHEL/CentOS-based Linux servers within AWS GovCloud and MCCOG infrastructure

Cloud Operations:

Manage EC2 instances, S3, IAM roles/policies, VPCs, security groups, and other AWS services within the GovCloud boundary

MCCOG Coordination:

Interface with MCCOG teams for provisioning, accreditation, and operational support of cloud-hosted systems

Security & Compliance:

Implement and maintain STIG hardening, ACAS/Nessus vulnerability scanning, and ensure compliance with DISA and Marine Corps cybersecurity policies (RMF/ATO)

Patching & Updates:

Execute scheduled and emergency patching of Linux systems in accordance with IAVM requirements

Monitoring & Performance:

Configure and maintain system monitoring tools (e.g., CloudWatch, Nagios, Splunk, or

HBSS/ESS

) to ensure availability and performance

SLAsAutomation & Scripting:

Develop Bash, Python, or Ansible scripts/playbooks to automate routine administrative tasks

Backup & Recovery:

Manage backup solutions and disaster recovery procedures for Linux systems

Documentation:

Maintain system documentation including SOPs, network diagrams, and change management records in accordance with contract requirements

Incident Response:

Troubleshoot and resolve system outages and security incidents; participate in after-hours support as needed

Collaboration:

Work with application teams, database administrators, network engineers, and the M&RA program office to support mission requirements

Education:

Bachelor's degree in IT, Computer Science, or related field (or equivalent experience)

Experience:

5+ years of Linux system administration (RHEL/CentOS preferred)

Cloud Experience:

2+ years hands-on experience with AWS (preferably GovCloud)Certifications (IAT Level II minimum per DoD 8570/8140):

CompTIA Security+ CE (required)Red Hat Certified System Administrator (RHCSA) or RHCE (desired)Linux+ (acceptable)

Clearance:

Must be a U.S. CitizenActive DoD [Secret] security clearance

Knowledge of:

DISA STIGs and SCAP compliance scanning

RMF / ATO

processesExperience in cloud formation and terraformExperience with

RAISE 2.0

(Zero Trust) and the ATO ProcessAWS IAM, VPC, EC2, S3, CloudFormation, and CloudWatchTCP/IP networking, DNS, DHCP, NFS, SSH, LDAPConfiguration management tools (Ansible, Puppet, or Chef)HBSS/ESS, ACAS, and Splunk