Senior LINUX Systems Admnistrator Information Technology San Diego, CA

Position: Senior LINUX Systems Administrator (Senior LINUX SysAdmin) – Full Time – Location: San Diego – Salary: $135,000–$145,000 – Clearance: Active DoD Secret Clearance Responsibilities: Deploy, configure, and dynamically scale infrastructure across bare metal servers and virtual machines based on the fluctuating testing demands of the Java Spring Boot applications. Maintain, monitor, and optimize the underlying server infrastructure that hosts the CI/CD tools (including GitLab and Jenkins), ensuring high availability for the DevOps teams managing the pipelines. Implement and heavily automate the configuration, STIG compliance enforcement, and routine patching of RedHatLinux8/9 systems to ensure maximum security and minimal manual overhead. Perform essential system administration, configure networking equipment, and execute reliable “sneakernet” data transfers to keep systems updated within a strictly disconnected and air‑gapped network environment. Requirements: Bachelor’s degree in electrical engineering, Computer Engineering, Computer Science, Information Technology, or a related quantitative field. At least five (5) years of experience; including extensive hands‑on administrative experience, specifically with RedHatLinux8/9 deployment, automated patching, and STIG application. Strong scripting and infrastructure automation capabilities (using tools like Bash, Python, or Ansible) to transition manual tasks into automated provisioning and dynamic scaling workflows. Proven hands‑on experience deploying, configuring, and administering bare metal server hardware and virtual machines to support high‑demand testing environments and microservices architectures. Demonstrated ability to maintain and optimize the underlying server hardware and operating systems that support enterprise CI/CD platforms like GitLab and Jenkins. Desired Qualifications: Clearance: Fully adjudicated DoD active Secret clearance. Experience with the deployment, configuration, and daily usage of RedHat Satellite for centralized patch management and RedHat Identity Management (IdM) servers for authentication is a strong plus. Familiarity with containerization and orchestration technologies, with the ability to help evaluate and potentially introduce Kubernetes in the future to further enhance infrastructure elasticity. A solid understanding of system resource management and how dynamic infrastructure scaling impacts the performance and testing of enterprise‑level Java Spring Boot applications. Prior experience successfully executing administrative duties and secure physical data transfers (sneakernet) in fully disconnected or highly classified environments. Relevant industry certifications (such as RedHat Certified System Administrator (RHCSA) or RedHat Certified Engineer (RHCE)). Benefits: Paid Time Off Holidays Health, Dental, and Vision Insurance Flexible Spending Account (FSA) 401(k) Life and AD&D Insurance To Apply: Visit and click “View Openings”. Equal Opportunity Employer Statement: Trabus Technologies is an Equal Opportunity Employer. #J-18808-Ljbffr