Information Security Systems Engineer 5 (Linux/Windows Systems Administrator)

Location: On-site in Waco, Texas, United States

Company

hirify.global develops defense technology and end-to-end solutions across space, air, land, sea, and cyber domains for national security missions.

What you will do

• Administer, provision, patch, troubleshoot, secure, and lifecycle-support Red Hat Linux and Windows servers and workstations in secure lab and isolated network environments.
• Build and maintain DNS, DHCP, NFS, automount, SMB/Samba, Windows domain, Active Directory, FreeIPA/LDAP, NTP, virtualization, storage, backup, and monitoring services.
• Support software engineering infrastructure, including controlled remote access, standardized system images, source-code platforms, and DevOps services.
• Implement and sustain STIG baselines, vulnerability remediation, endpoint protection, centralized logging, security-tool integrations, and evidence for CMMC, ATO, continuous monitoring, and program accreditation.
• Maintain asset and service inventories, ownership records, network and configuration diagrams, procedures, change records, audit artifacts, and status reporting.
• Provide on-site incident, outage, recovery, vendor, and emergency response for the secure-area environment.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or a related field plus at least 9 years of relevant experience; or a graduate degree plus at least 7 years; or at least 13 years of relevant systems administration experience without a degree.
• Hands-on Linux administration experience with Red Hat-based distributions and Windows administration experience.
• Experience with Active Directory, shell scripting, network and storage services, system hardening, and secure environments.
• The position is on-site in Waco, Texas.
• Many positions require the ability to obtain a security clearance; security clearances may only be granted to U.S. citizens.
• Applicants may be subject to government security investigations, background checks, pre-employment substance abuse testing, and eligibility requirements for classified-information access.

Nice to have

• Experience with Ansible, AWX, Puppet, Chef, FreeIPA, LDAP, Kerberos, IDM, GitLab, GitHub, or SVN administration.
• Security+ or an equivalent security certification.
• Experience with STIG implementation, audit readiness, Windows domain operations, and defense or regulated environments.
• Familiarity with CI/CD pipelines, DevOps platforms, log analysis, metrics and monitoring, virtualization, cloud platforms, multi-operating-system environments, and security-focused troubleshooting in distributed systems.

Culture & Benefits

• 9/80 work schedule: 9 working days every 14 days, totaling 80 hours, with every other Friday off.
• Inclusive and engaging workplace focused on professional growth, work-life success, community commitment, and operational excellence.
• Equal opportunity employment and a drug-free workplace.
• E-Verify employer; employment information may be shared with affiliated companies to consider applicants for other positions.