Senior Linux Systems Engineer

About the role

About Agile Defense

At Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.

Our vision is to bring adaptive innovation to support our nation's most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility—leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation’s vital interests.

Requisition #: 1788

Job Title: Senior Linux Systems Engineer

Location: On-Site, Oahu, HI

Clearance Level: Top Secret, SCI, Must Have Clearance to Start

Required Certification(s): IAT Level III (CISSP/CASP) + Computing Environment (CE), Red Hat Certified System Administrator (RHCSA), One additional specialized certification cloud technology or relevant to the scope of the PWS.

If no (RHCSA) OR IAT Level III to start, then candidate will be required to obtain within 6months of starting the program

Job Description As part of Agile Defense, the successful candidate will provide Linux engineering, systems administration, and cybersecurity services supporting the sustainment of Red Hat Enterprise Linux (RHEL) environments across Army and Military Intelligence (MI) Domain networks. The position will support both on-premises infrastructure and Army Commercial Cloud Service Provider (AC2SP) environments.

The contract services will contribute to the operation, sustainment, cybersecurity, and regulatory compliance of Army JWICS and the MI Domains across the INSCOM G6/GISA global enterprise.

Agile Defense is seeking a Senior Linux Systems Engineer to support a contract providing RHEL services to INSCOM GISA. The successful candidate will have extensive experience deploying, managing, securing, and troubleshooting enterprise Linux environments across distributed, hybrid-cloud, and global enterprise infrastructure.

Linux Systems Administration & Engineering

- Deploy, configure, maintain, troubleshoot, and secure Linux-based servers

- Develop, maintain, and enforce standardized RHEL system baselines in accordance with enterprise security requirements, STIGs, and operational standards

- Deploy and manage RHEL systems throughout their lifecycle, including installation, configuration, upgrades, patching, troubleshooting, and decommissioning.

- Manage RHEL software packages and repositories using YUM/DNF.

- Configure and maintain enterprise Linux services, including DNS, DHCP, NFS, and related infrastructure services.

- Manage user accounts, permissions, authentication, and access controls in accordance with established security policies.

- Apply and test kernel updates, package upgrades, security patches, and configuration changes in production and development environments.