Windows and Linux System Administrator

Seneca Resources is hiring a Windows and Linux Systems Administrator to support a critical Research, Development, Test, and Evaluation (RDT&E) network and secure enclaves for a federal defense client in San Diego. This is a fully onsite role where you will play a key part in maintaining secure infrastructure, hardening systems to federal standards, and contributing to the design and engineering of new capabilities in a classified environment.

• Active Secret clearance
• IAT Level II certification required: Security+ CE, GSEC, SCNP, or SSCP
• 3+ years of experience administering Windows 11 systems
• 3+ years of experience administering Red Hat Enterprise Linux (RHEL) systems
• Proficiency developing and executing PowerShell and Bash scripts
• Experience with the IAVM process including STIGs and patch compliance
• Familiarity with DISA hardening standards including STIGs and CTOs
• Experience maintaining asset tracking databases and developing SOPs
• Ability to support equipment procurement and coordinate shipping to remote teams

Desired Skills:

• Automation experience using Ansible playbooks
• Experience with endpoint security tools and solutions
• Strong communication and collaboration skills in a team-based environment

At Seneca Resources, we are more than just a staffing and consulting firm, we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact. When you work with Seneca, you’re choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way. Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.

San Diego