Lead, Systems Administrator

Job Title: Information Security Systems Engineer (Linux/Windows Systems Administrator) 5

Job Code: 46907

Job Location: Waco TX

Job Schedule: 9/80: Employees work 9 out of every 14 days- totaling 80 hours worked- and have every other Friday of

Job Description:

The Information Security Systems Engineer 5 (Linux/Windows Systems Administrator) serves as the dedicated systems administrator for Wacos secure isolated lab and air-gap environments. The role provides on-site ownership for the Linux and Windows infrastructure that supports multiple US Government Programs engineering and related mission work. The administrator provisions secures operates troubleshoots and documents systems and services while maintaining clear boundaries among Secure Area IT Program teams and Industrial Security.

Essential Functions:

• Administer Red Hat-based Linux servers and workstations and Windows Server and workstations including provisioning troubleshooting patching privilege management identity and access administration configuration changes and lifecycle support across secure lab and isolated network environments.
• Build and maintain infrastructure services such as DNS DHCP NFS automounts SMB/Samba Windows domain services Active Directory FreeIPA or LDAP NTP virtualization storage backup and monitoring. Keep these services documented and recoverable so the air-gap environment can support users and engineering teams without relying on remote enterprise access.
• Support software engineers with secure development infrastructure including controlled remote access standardized workstation and server images source-code and DevOps platforms and practical troubleshooting of multi-operating-system environments. Translate engineering needs into supportable services and clear ownership boundaries.
• Partner with information security stakeholders to harden and audit systems to security guidance. Implement or sustain STIG baselines patching vulnerability remediation endpoint protection centralized logging security-tool integration and evidence needed for CMMC ATO continuous monitoring and Program accreditation activities.
• Maintain operational evidence and status reporting including asset and service inventories ownership records network and configuration diagrams standard operating procedures change records audit artifacts and clear reporting of open gaps owners aging and next actions.
• Provide on-site operational response for incidents outages recovery activities vendor coordination emergency coverage and closeout actions. Help stabilize a dependable local support model for the Waco secure-area environment and keep the program moving from partial operation toward an accredited sustainment model.

Qualifications:

• Bachelors Degree in Computer Science Information Technology or a related field and minimum 9 years of prior relevant experience. Graduate Degree in Computer Science Information Technology or a related field and a minimum of 7 years of prior related lieu of a degree minimum of 13 years of prior related experience in systems administration.
• Hands-on experience with Linux administration on Red Hat-based distributions Windows administration Active Directory shell scripting network and storage services system hardening and support for secure environments.

Preferred Additional Skills:

• Experience with configuration management and automation tools such as Ansible AWX Puppet or Chef; centralized authentication technologies such as Active Directory FreeIPA LDAP Kerberos or IDM; and source code platform administration using GitLab GitHub or SVN.
• Security or equivalent security certification is strongly desired; experience with STIG implementation audit readiness Windows domain operations and cross-functional support in defense or regulated environments is highly valuable.
• Familiarity with CI/CD pipelines DevOps platforms log analysis metrics and monitoring virtualization multi-operating-system environments cloud platforms and security-focused troubleshooting in distributed systems.