Senior Linux Systems Administrator (Red Hat)

Bowhead - Dahlgren, VA

Full-time - Mid Level

Dahlgren, VA

Transportation Equipment Manufacturing

About the position

The Senior Linux Administrator (Red Hat) is responsible for system administration and customer support of servers and workstations in a Research, Development, Testing, and Evaluation (RDT&E) environment. This role requires expertise in Red Hat Enterprise Linux and involves automating installation methods, managing public key infrastructure, and ensuring system performance through modifications and enhancements. The position also entails collaborating with engineers and managing security configurations.

Responsibilities

• Utilize Red Hat Enterprise Linux system administration experience to provide technical problem solving and in-depth consulting relative to system operations.
• Automate installation methods and system imaging (e.g. Kickstart/Ansible).
• Use cryptographic experience to set up public key infrastructure (PKI) to create, manage, distribute, use, store, and revoke digital certificates and manage public-key encryption.
• Implement DISA STIG and work within Configuration-Managed Environments.
• Analyze, design, and implement modifications to system software to improve and enhance system performance by correcting errors.
• Plan new hardware acquisitions, interact with vendors, educate customers, and collaborate with other projects within the organization.
• Support application installation, license management, software tracking/distribution, and backup/recovery of system configurations and user data files.
• Manage users and groups, including use of a centralized directory for authentication.
• Manage security, including basic firewall and SELinux configuration.
• Produce and deliver reports on system utilization.

Requirements

• Minimum five to eight years' (5-8) experience in system administration of Linux-based servers and Linux-based workstations.
• Troubleshooting skills in RHEL 7/8/9 OS and basic knowledge of Networking fundamentals, specifically TCP/IP protocol suite and IP configuration.
• Working knowledge of security guidelines and policies (DISA STIGs) and tools (Evaluate-STIG, STIG-Manager).
• Knowledge of / experience with Tenable suite of products (Security Center, Nessus Scanner, Nessus Agent) is a plus.
• Specific experience with Red Hat Enterprise Linux (RHEL 8.x with RHEL 7.x and/or RHEL9.x a plus).
• Must meet DoD 8570 Information Assurance Workforce (IAWF) criteria or Information Assurance Technical (IAT) Level II certification at time of hire (i.e., Security+).
• Knowledge of corporate services including: DNS, SMTP, Splunk, Centralized patching solutions such as Red Hat Satellite, Automation solutions such as Ansible Tower / AWX.
• Knowledge of / experience with: Single Sign on solutions such as RHSSO; Virtualization platform management systems such as VMWare / VSphere / Vcenter is a plus.

Nice-to-haves

• Linux+ or Red Hat Certification preferred.
• Experience working in an environment with rapidly changing job priorities.
• Experience with Service Now or similar Ticket Management system.