System Administration L3 - TS/SCI Poly required with Security Clearance

We are currently seeking an experienced Senior System Administrator to support a mission-focused environment supporting critical government operations. This position requires a strong Linux systems administration background, experience with virtualization and automation technologies, and the ability to operate in secure enterprise environments. Required Experience * Fifteen (15) years of experience as a System Administrator (SA) * Bachelor’s degree in a technical discipline from an accredited college or university required * Five (5) additional years of SA experience may be substituted in lieu of a degree Required Certifications * Active Information Assurance Technical (IAT) Level II certification in accordance with DoD 8570.01-M requirements, or the ability to obtain within six (6) months of start date Required Technical Skills * Linux system administration * Containerization technologies * Storage management * KVM virtualization * Automation and configuration management tools such as Ansible and/or SALT * FreeIPA administration and support * Scripting experience using Bash, Perl, Python, or similar languages * SSP compliance and documentation support * STE/STN support experience * Cloud technologies and AWS experience Clearance Requirement * Active security clearance required Responsibilities * Administer, maintain, and troubleshoot Linux-based enterprise environments * Support virtualization, storage, and container platforms * Develop and maintain automation solutions for system deployment and configuration management * Support secure system operations in compliance with government security requirements * Assist with SSP documentation and compliance initiatives * Provide operational support for mission systems and secure communications infrastructure * Collaborate with engineering and cybersecurity teams to maintain system availability and performance Preferred Qualifications * Experience supporting classified or mission-critical government environments * Strong troubleshooting and analytical skills * Ability to work independently in fast-paced operational settings