Senior Linux Systems AdministratorTDI (Tetrad Digital Integrity) • Fort Belvoir, Virginia, United States
Senior Linux Systems Administrator
TDI (Tetrad Digital Integrity)
- Fort Belvoir, Virginia, United States
- Fort Belvoir, Virginia, United States
Über
The position is located at Fort Belvoir and will require a TS/SCI clearance with a commute to the base approximately 4 days a week.
RESPONSIBILITIES
Full lifecycle management of Linux servers, including installation, configuration and patching in production and test environments
Provision servers and environments and manage user access
Automation knowledge scripting in Unix shell and Ansible playbooks
Perform security patching, upgrades, and hardening to meet compliance standards and remediate critical vulnerabilities
Monitor system performance and respond to alerts
Establish and maintain NTP services in the production environment
Maintain satellite servers for the agency, software releases and patches
Experience with the following emerging technologies or equivalent technology: Kubernetes, Open Shift, Containers, GitHub, Ansible Tower
Ensure compliance with security standards and practices aligned with DoD STIGs
Experience with web servers and use of certificates
Open Source: Apache Hadoop, Zookeeper, Puppet
App Servers: JBoss, Tomcat, Jetty, NGINX, HT
Work on multiple projects, leading projects that fall within the Area of responsibility
Provide support on a M-F business hours schedule, also responsible for on-call, extended hour, and weekend support as required by mission or emergency situations
Create, maintain, and implement detailed documentation and maintain standard operating procedures
QUALIFICATIONS
Active Top Secret/SCI Clearance
BS with 6-8 yearsor MS degree with 4-6 years of experience in IT operations working with Linux servers and Virtualization
DoD 8570 IAT Level II or III certification (e.g., Security+ CE, CASP+, CISSP
Hands‑on experience administering Red Hat Enterprise Linux environments
Direct experience supporting systems with Red Hat Satellite
Understanding of virtualized infrastructure, server backup and restoral procedures, application of STIGs and cyber hardening approaches
Basic experience with log file analysis
Strong troubleshooting and problem‑solving skills
PREFERRED QUALIFICATIONS
Red Hat certifications (RHCSA or RHCE)
Experience implementing and maintaining DISA STIG compliance using Red Hat Satellite and Ansible
Experience integrating Linux systems with Active Directory or LDAP
Familiarity with virtualization platforms (VMware, KVM)
Scripting experience (Bash or Python) to support automation initiatives
Experience supporting classified networks or cross-domain environments
Red Hat Certification - Red Hat Certified System Administrator (RHCSA)
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Sprachkenntnisse
- English
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