Linux Systems Administrator, Mid-Level
Bowhead Mission Solutions
Corona, CA · Posted November 5, 2026
Just laid off? Start here: a plan for the first weeks
See every open role at Bowhead Mission Solutions
More in California job market · Manufacturing & Industrial · Engineering jobs
More roles at Bowhead Mission Solutions
- Program Operations Manager · White Plains, MD
- Information System Security Manager (ISSM) · Montgomery, AL
- Site Manager · San Angelo, TX
- Contract Manager · Texarkana, TX
- Systems Engineer (MBSE) · Dahlgren, VA
- Product Manager (PdM) Multi-Mission Surveillance Systems (M2S2) Landing Page · Aberdeen, MD
Similar jobs
- Sr. Principal Systems Administrator, LINUX (ONSITE) · RTX · el segundo, CA
- Fabric and Data Engineer · East West Bancorp · Pasadena, CA
- Sr. Systems Administrator · Pulse Biosciences · Hayward, CA
- UKG Systems Administrator · AEVEX · Solana Beach, CA
- Systems Administrator · General Matter · Los Angeles, CA
- Sr. Systems Administrator · Penumbra · Roseville, CA
Where Corona, CA ranks
Where Corona, CA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Cities where the biggest share of jobs do not need a four-year degree in the West Coast31% · of 53
- #4Cities with the most hybrid jobs in the West Coast25% · of 66
- #9Best cities for junior jobs in California32% · of 54
- #13Best college towns for junior jobs in the West Coast34% · of 50
- #13Best all-round cities for new graduates in the West Coast54 / 100 · of 39
- #14Best cities for junior jobs in the West Coast32% · of 71
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
Among database administrators, AI is already used for a large share of the tasks. Measured exposure for database administrators: 33% (high).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
Skills this job asks for
Say which you have and which you want to build. We use it to match you to jobs like this one.
About the job
Overview
Bowhead is seeking a highly skilled and experienced Mid-Level Linux System Administrator to join our dynamic IT team. This is a 100% onsite position located in Norco, CA. As a Linux Subject Matter Expert (SME), you will be responsible for the administration, maintenance, and support of our critical Linux-based infrastructure. Experience working within a Department of Defense (DoD) environment is highly desirable.
This position is 100% onsite.
Responsibilities
• Systems Administrator administers and supports daily operational requirem• Linux Systems Administration: Install, configure, and maintain Linux servers (e.g., Red Hat, CentOS, Ubuntu) including operating system installation, patching, and security hardening.• Subject Matter Expertise: Serve as the primary point of contact and subject matter expert for all Linux-related issues, providing guidance and support to other team members.• Performance Monitoring and Optimization: Monitor system performance, identify bottlenecks, and implement solutions to optimize system performance and stability.• Security Management: Implement and maintain security measures to protect systems and data, including access controls, intrusion detection, and vulnerability scanning.• Scripting and Automation: Develop and maintain scripts (e.g., Bash, Python) to automate routine tasks and improve operational efficiency.• Troubleshooting and Problem Solving: Diagnose and resolve complex system issues in a timely and effective manner.• Documentation: Create and maintain comprehensive documentation of system configurations, procedures, and troubleshooting steps.• Collaboration: Work closely with other IT teams (e.g., networking, security, development) to ensure seamless integration of systems and services.• Backup and Recovery: Implement and maintain backup and recovery procedures to ensure data integrity and business continuity.• Compliance: Ensure systems comply with relevant security standards and regulations.
Qualifications
• Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent experience.• 5+ years of experience as a System Administrator with a strong focus on Linux systems.• Deep understanding of Linux operating systems, including kernel configuration, system services, and security principles.• Proficiency in scripting languages such as Bash and Python.• Experience with virtualization technologies (e.g., VMware, KVM).
• Security+ certification or equivalent.• Strong troubleshooting and problem-solving skills.• Excellent communication and interpersonal skills.• Ability to work independently and as part of a team.
• Desired:• Experience working in a Department of Defense (DoD) environment.• Experience with security compliance frameworks (e.g., STIGs, NIST).• Experience with configuration management tools (e.g., Ansible, Puppet).• Experience with containerization technologies (e.g., Docker, Kubernetes).• Relevant certifications (e.g., Red Hat Certified Engineer (RHCE), CompTIA Linux+).
SECURITY CLEARANCE REQUIREMENTS: Must currently hold a security clearance at the minimum Secret level.
Physical Demands:• Must be able to lift up to 25 pounds• Must be able to stand and walk for prolonged amounts of time• Must be able to twist, bend and squat periodically
Targeted salary range is $100,000 to $110,000 annually based on qualifications and experience.
Please note that the salary information is a general guideline only. Bowhead considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.
#LI-MN1