Linux Systems Administrator
Listed on 2026-01-12
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IT/Tech
Cybersecurity
At Areté, we are on the forefront of utilizing innovative solutions, with great minds from all backgrounds, to help solve the nation’s most complex security challenges. We strive for an inclusive, collaborative team environment that approaches differences as opportunities for innovation and excellence. As an employee-owned company, we foster an atmosphere that propels diverse career opportunities and professional growth.
Discover your future with us.
Areté is seeking a Linux Systems Administrator to work as a member of our Program IT team in our Tucson, AZ facility. The selected candidate must be eligible to maintain a Top Secret clearance. The candidate will work on multiple DoD contracts supporting the design, installation, and configuration of Cyber-compliant prototype and low volume production systems and networks of varying complexities.
The candidate will be working on exciting projects in direct support of the Warfighter. The candidate will collaborate with other IT staff members, Cyber Security staff, travel occasionally, and provide some after hours support. This is an exempt, non-supervisory, full-time position.
- Contributing to the design, configuration and installation of various Linux and Windows systems used on HPCs, data collectors, COTS servers, and other deliverable IT systems;
- Developing, maintaining, and applying relevant technical expertise in Cyber Security subjects such as FIPS encryption, Type 1 NSA Encryption, operating system, application, and network device hardening, STIGs, Audit log configuration and collection, endpoint protection software, and more;
- Contributes to the required technical documentation packages;
- Monitors and improves the build processes performed by IT technicians to produce identical systems;
- Adheres to required quality control processes;
- Supports system integration activities and field tests as needed for prototype systems;
- Other duties, as assigned.
- Medical, Dental & Vision Insurance
- Life and Long-Term Disability (LTD)
- Vision Reimbursement
- Fitness Reimbursement
- 401(k) Retirement Plan Contributions
- Employee Stock Ownership Plan (ESOP)
- Continuing Education Assistance
- Flexible Scheduling
- Paid Time Off (PTO)
- Paid Parental and Bereavement Leave
- Creativity and innovation in solving challenges
- Integrity and responsibility in all actions
- Collaborationacrossteamsandspecialties
- Responsivenessinfast-paced environments
- Passion for national security and excellence
- Eligible to obtain and hold a Top Secret clearance
- Must have or be able to obtain a Security+ CE or equivalent certification for DoD 8140 / 8570 IAT Level II or higher within 90 days of employment.
- Minimum of 3 years working as a System Administrator, Engineer, Network Administrator or similar role;
- Bachelor’s Degree in an Information Technology related discipline and/or current, applicable industry-standard certifications (MCSA, CCNA, Security+, RHCSA) or an additional 3 years of experience;
- Proficient understanding of computer hardware configuration, software, and operating systems (primarily Red Hat Enterprise Linux 8 and/or 9.
- Working knowledge of Bash scripting and/or Ansible;
- Experience with classified information system Cyber Security tools and technologies (Nessus/ACAS, SCC, STIGViewer) and experience collaborating with Cyber Security professionals;
- Expert-level client system troubleshooting skills and experience;
- Strong interpersonal skills, ability to work autonomously and on a team;
- Strong written communication skills and the ability to document/diagram information systems and procedures;
- Able to obtain a FAA Level 3 Medical Certification from an FAA-designated Aviation Medical Examiner;
- Must be able to lift 25 pounds.
- Some experience with one or more of the following technologies:
Cluster Management software, RDMA configuration in support of 100/200/400gbe Networking, Anaconda environment installation and configuration, NVIDIA Driver/CUDA installation in Linux, RHEL 8/9 security-related functions (SELinux, AIDE, firewalld, PAM configuration files,…
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