Senior IT Systems Administrator (Linux Admin)

Location: El Segundo, California, United States; onsite role with occasional travel of up to roughly 10% to company offices and new sites. U.S. person status is required for access to CUI and export-controlled data.

Salary: $140,000–$200,000 base compensation per year, excluding bonus, equity, and benefits.

Company

hirify.global is a defense technology company founded in 2022 that develops products powered by Coherent Distributed Networks for warfighters, commercial air operators, and border protection teams.

What you will do

• Architect, administer, patch, monitor, and manage the lifecycle of physical, virtual, and cloud-based Linux environments across Red Hat-family and Debian-family distributions.
• Automate provisioning, configuration management, patching, reporting, and routine administration using Ansible, Bash, shell, and Python.
• Build hardened server images and templates aligned with DISA STIG and CIS baselines, including SELinux, auditd, and FIPS-validated cryptography where required.
• Manage Linux storage, networking, enterprise identity integration, access controls, Azure and AWS workloads, and applicable containerized workloads.
• Lead complex incident response, root-cause analysis, infrastructure projects, backup and disaster recovery, compliance evidence, documentation, and architecture reviews.
• Set technical standards, mentor junior administrators and service desk staff, contribute to infrastructure planning and budgets, and participate in on-call rotations and after-hours maintenance windows.

Requirements

• Bachelor’s degree in Information Technology, Computer Science, Information Systems, or a related field, or equivalent work experience.
• At least 7 years of progressive experience administering enterprise Linux server environments, including RHEL, Rocky, CentOS, Ubuntu, or Debian.
• Expert command-line and troubleshooting skills with deep knowledge of systemd, networking, LVM, file systems, NFS, and performance tuning.
• Strong Bash and Python scripting and automation skills, with experience using configuration management tools such as Ansible.
• Experience hardening Linux systems and remediating vulnerabilities in regulated environments, including SELinux, auditd, DISA STIG or CIS baselines, and NIST SP 800-171 or CMMC requirements.
• Experience integrating Linux with Active Directory, LDAP, Kerberos, and SSSD, and managing SSH, sudo, MFA, and privileged access.
• Experience owning patch management, monitoring, backup, and disaster recovery, including restore testing and recovery objectives.
• Track record of leading infrastructure projects and mentoring engineers, with strong documentation and communication skills.
• U.S. person status is required for access to CUI and export-controlled data under ITAR/EAR.

Nice to have

• Experience running Linux in Azure, AWS, Azure Government, or Microsoft GCC High, including hybrid and multi-cloud designs.
• Experience with Docker, Podman, Kubernetes, and virtualization platforms such as KVM or VMware.
• Linux or cloud certification such as RHCSA, RHCE, LFCS, Azure Associate-level, or AWS Associate-level; or security certification such as Security+ or CISSP.
• Experience with infrastructure as code and CI/CD tooling, including Terraform, Git-based workflows, or pipelines.
• Experience supporting CMMC, NIST 800-171, or FedRAMP assessments, and an active U.S. government security clearance or the ability to obtain one.

Culture & Benefits

• Medical, dental, and vision benefits are fully paid by the company.
• 401(k) with a 50% company match up to 6% of pay, plus FSA, HSA, life insurance, and other benefits.
• Free daily lunch while working onsite and a fully stocked kitchen.
• Unlimited PTO and a casual dress code.
• Relocation assistance, pre-IPO stock option grants, and annual bonuses planned for the future.
• Primarily sedentary computer-based work with occasional lifting of equipment up to 25 pounds and work in server or network rooms.