IT Systems Administrator - RHEL / Windows / DoD Cybersecurity

We are hiring an IT Systems Administrator - RHEL / Windows / DoD Cybersecurity to support the GEPs program, providing server administration, systems engineering, and cybersecurity support throughout the system development life cycle. This role supports Red Hat Enterprise Linux (RHEL), Windows Server, VMware, Ansible automation, Risk Management Framework (RMF) activities, Security Technical Implementation Guides (STIGs), vulnerability management, and continuous monitoring to maintain secure, compliant information systems., * Install, configure, upgrade, administer, and maintain RHEL and Windows servers, operating systems, and supporting applications.

• Perform systems engineering activities to identify, analyze, and resolve system design weaknesses and ensure compliance with government security specifications.
• Support system security documentation, accreditation, certification, security assessments, and testing throughout the system development life cycle.
• Develop and maintain Ansible playbooks to automate system configuration, administration, and security compliance activities.
• Perform weekly system audit reviews, media reviews, and hardware/software configuration management.
• Conduct monthly vulnerability scans using ACAS/Nessus, SCAP Compliance Checker, STIG Viewer, and other security assessment tools.
• Coordinate with Cyber Engineering teams to evaluate scan results, remediate vulnerabilities, and support RMF continuous monitoring requirements.
• Execute security testing and evaluations to verify the implementation and effectiveness of security controls.
• Implement system hardening and vulnerability remediation in accordance with applicable STIGs and security requirements.
• Administer VMware environments, Docker containers, identity management systems, and Windows domains.
• Install and configure third-party software applications supporting system functionality and cybersecurity services.
• Perform network administration, including DHCP and Network File System (NFS) configuration and support.
• Develop and maintain Bash and Python scripts to support system administration and automation.
• Perform Assured File Transfer (AFT) procedures in accordance with established security requirements.
• Support incident response, system recovery, and cleanup activities as directed.
• Ensure systems are operated, maintained, and disposed of in accordance with the System Security Plan (SSP) and applicable security policies.
• Develop technical engineering products and contribute to system design frameworks supporting multiple products and systems.

U.S. citizenship is required due to the nature of work performed within classified facilities.

• Bachelor’s degree in Systems Engineering, Science, Engineering, Mathematics, or a related technical field with a minimum of 5 years of relevant experience; or a Master’s degree with a minimum of 3 years of relevant experience.
• Experience administering Red Hat Enterprise Linux (RHEL) and Windows operating systems.
• Experience installing, configuring, upgrading, troubleshooting, and maintaining servers.
• Experience using security assessment and system hardening tools, including SCAP Compliance Checker, STIG Viewer, and ACAS/Nessus.
• Knowledge of Ansible automation and experience developing and maintaining Ansible playbooks.
• Understanding of Security Technical Implementation Guides (STIGs), system hardening, and vulnerability remediation.
• Training and proficiency in Assured File Transfer (AFT) procedures.
• Experience installing and configuring third-party applications supporting system operations and cybersecurity services.
• Experience with identity management and domain administration.
• Experience administering VMware virtualization environments and Docker containers.
• Proficiency in Bash and Python scripting.
• Experience with general network administration, including DHCP and NFS configuration.

Preferred Qualifications:

• DoD 8570 certification meeting IAM Level I requirements, such as Security+ CE, CAP, or GSLC.
• Experience collaborating with cross-functional engineering and cybersecurity teams throughout the system development life cycle.