Senior Linux Administrator

Description

The DTRA program at Leidos is seeking a Senior Linux Administrator in Fort Belvoir, VA to support the DTRA I3TS Infrastructure Services team to maintain and optimize the Linux production environment. The candidate will be responsible for sustaining Linux servers as well as the conceptualization, design, development and implementation of new Linux capabilities. The candidate is expected to work well as a part of the DTRA Systems Administration team using ITIL best practices as well as work independently on assigned tasks.

Candidate is expected to support the entire service lifecycle from design through development to production, building and deploying Linux based systems in a virtual environment.

Clearance:
Must hold a Top Secret/SCI Clearance.

• Provision servers and environments
• Manage user access
• Maintain servers in virtual environment
• Automation knowledge scripting in Unix shell and Ansible playbooks
• Maintain and improve configuration management templates
• 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 an equivalent technology:
  Kubernetes, Open Shift, Containers, Git Hub, 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, HTTP

• Bachelors with 8+ years, or MS degree with 4-6 years of experience in IT operations working with Linux servers and Virtualization
• Must hold a Top Secret/SCI Clearance.
• 2-3+ years of Windows Server experience.
• 2-3 years of experience with web server management and implementation; troubleshooting of websites, applications, and security implementations.
• Understanding of virtualized infrastructure, server backup and restoral procedures, application of STIGs and cyber hardening approaches.
• Basic experience with log file analysis
• Basic experience with Red Hat Satellite tool for deploying, configuring, and maintaining Red Hat Enterprise Linux (RHEL) across physical, virtual, and cloud environments.
• Basic understanding of Red Hat, provisioning, and patching, often using Satellite Capsules for distributed content delivery and local services like DHCP/DNS in large or remote setups. It centralizes RHEL management, improving security and efficiency by handling subscription management, content views, and system auditing from a single console.
• Basic understanding of Red Hat command line tools:
  System Management, Manage RPM packages, and Package Management.

• IAT II (8570) Certification
• Red Hat Certification - Red Hat Certified System Administrator (RHCSA (Preferred)

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.