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Mission Security Administrator II

True Anomaly - Denver, CO, United States - In-office - posted 2026-10-20

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Salary: USD 80,000 - 115,000 / annual

True Anomaly is seeking a Mission Security Administrator II to manage classified command and control (C2) infrastructure and national security space systems. This is a hands-on operational role focused on the setup, configuration, maintenance, and day-to-day administration of classified ground-based systems and engineering environments critical to space superiority missions. You will be responsible for administering Windows and Linux servers in classified environments, managing user accounts and role-based access controls (RBAC), configuring cloud infrastructure in AWS or Azure, and ensuring systems remain compliant with federal security standards and Authorization to Operate (ATO) requirements. Key responsibilities include patch management, software and hardware asset management, backup and disaster recovery operations, RMF compliance support, vulnerability remediation, and technical documentation. This role involves significant customer interaction—you will work face-to-face with government customers, Mission Security Engineers, IT professionals, and cross-functional teams to operationalize security architecture and maintain mission system reliability. You will participate in on-call rotation for system administration support and work in Sensitive Compartmented Information Facilities (SCIFs). Occasional travel to government sites and customer facilities may be required. The ideal candidate is a security-focused system administrator with strong operational skills who thrives in structured compliance environments and is motivated to support critical national security missions. You will be the trusted technical operator ensuring classified systems function reliably and remain compliant without interruption. REQUIREMENTS: - Active Secret clearance required (TS/SCI preferred) - DoD 8140 IAT Level II certification (Security+, CySA+, or equivalent) required - Education and experience (one of the following): • Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or related field AND 2–4 years of experience in system administration, IT operations, or security operations • Master's degree in Computer Science, Information Technology, Cybersecurity, or related field (no experience required) - Hands-on experience administering Windows Server and/or Linux server environments - Experience with user account management, identity administration, and role-based access control (RBAC) - Familiarity with configuration management, asset management, and system documentation practices - Working knowledge of RMF processes and DoD security compliance requirements - Strong troubleshooting and problem-solving skills in operational IT environments - Excellent communication skills and ability to work face-to-face with customers and stakeholders PREFERRED QUALIFICATIONS: - Active TS/SCI clearance (or TS/SCI with polygraph) - Experience supporting DoD or IC mission systems in classified environments - Experience in customer-facing technical support or system administration roles - Experience with IL-5 or IL-6 impact level cloud environments (AWS GovCloud, Azure Government) - Experience with Active Directory, LDAP, or other identity management systems - Familiarity with IT service management (ITSM) tools and ticketing systems - Experience with configuration management tools (Ansible, Puppet, Chef, SCCM) - Hands-on experience implementing DISA STIGs and security baselines - Knowledge of NIST SP 800-53 security controls - Familiarity with space system operations including satellite C2 and ground infrastructure - Experience with backup solutions (Veeam, Commvault, AWS Backup, Azure Backup) - Additional DoD 8140 certifications (CISSP, CISM, Server+, Linux+) - Scripting skills (PowerShell, Bash, Python) for automation U.S. citizenship or lawful permanent resident status required due to ITAR regulations.

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