Linux System Administrator

Job Number: R0228663

The Opportunity:

On our team, you'll support the client's operations mission. This includes the deployment, operation, administration, troubleshooting, updating, securing, and maintenance of all systems, software, and infrastructure that enable enterprise cybersecurity capabilities across the client's environment. You'll operate, maintain, and administer existing network and system architectures, and perform network administration, including hardware, software, physical cabling, and IP address management.

As a System Administrator, you'll support a broad range of technical environments and responsibilities, including networking and security devices, circuits, automated systems, servers, client computers, applications, databases, voice systems, help‑desk support, asset and inventory management, and technical support.

Join us. The world can’t wait.

• 5+ years of experience with Linux or UNIX systems and the complex interoperability between Linux, UNIX, and Windows
• Experience with designing, implementing, maintaining, and troubleshooting Red Hat Enterprise Linux Server environments v8 and v9, ensuring their reliability, security, and optimal performance
• Experience with creating, implementing, maintaining, troubleshooting, and utilizing advanced scripting in tools such as Bash, Perl, JavaScript, or Python to automate or simplify tasks, enhance system functionalities, and troubleshoot issues
• Experience with task automation, package management, including installs and updates across geographically dispersed environments, NFTables, Firewall or IPTables, ISC2 BIND DNS, TCP/IP, IPv4 or IPv6, Postfix or SMTP Relay, Linux Server Administration, Linux Server Clustering, NFSv3 or NFSv4, PXE boot, and SELinux
• Ability to maintain detailed documentation for system designs, configurations, processes, and service records
• Ability to collaborate with cross‑functional teams to support IT infrastructure projects, including providing expert guidance and technical leadership
• Ability to lead and mentor junior team members in best practices and technical challenges
• Secret clearance
• High school diploma or GED
• Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification, and DoD 8570 IAT Level II compliant Certification such as Security+ CE Certification

• Experience with security hardening framework standards and regulations from Center for Internet Security (CIS) Control 4, National Institute of Standards and Technology (NIST) Special Publication 800‑53 Revision 5, and the DoD's Security Technical Implementation Guides (STIGs)
• Experience with Mritan Container Runtime or Docker, Amazon Web Services (AWS), and Git Lab
• Experience with task automation using Ansible and RHEL Satellite, preferably Red
• Ability to work independently or as part of a team
• Ability to troubleshoot and resolve LAN and WAN connections, performance and throughput issues, and other related network problems
• Ability to explain complex technical concepts to non‑technical stakeholders
• Ability to analyze development and implementation requirements, make appropriate modifications to existing systems, and prepare specifications based on customer requests
• Possession of excellent attention to detail and organizational skills
• Possession of excellent problem‑solving skills

Applicants selected will be subject to a security investigation and will need to meet eligibility requirements for access to classified information;
Secret clearance is required.

The projected compensation range for this position is $77,600.00 to $ (annualized USD). This posting will close within 90 days from the posting date.

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.