BackgroundSupport the U.S. Naval Observatory (USNO) N6 Department in the deployment, administration, and maintenance of IT systems and infrastructure supporting the Precise Time and Astrometry Network. The successful candidate will provide technical support to the Precise Time, Celestial Reference Frame, Earth Orientation, and Astronomical Applications Departments, assisting with the systems, platforms, and services required to support their mission operations. The candidate will also coordinate with USNO Information Assurance personnel to ensure systems comply with applicable DoD cybersecurity requirements and will assist in the development and maintenance of required technical and cybersecurity documentation.Qualifications / Education / ExperienceMust hold and maintain CompTIA Security+ certificationExperience administering and supporting macOS systems in an enterprise environmentExperience with Jamf Pro for Mac device management, including enrollment, policies, configuration profiles, software deployment, and inventoryWorking knowledge of Apple Business Manager (ABM) and Automated Device EnrollmentFamiliarity with macOS security, permissions, FileVault, system settings, and user account managementWorking knowledge of Bash/shell scriptingExperience troubleshooting macOS hardware, software, networking, and authentication issuesBasic understanding of Active Directory and/or enterprise identity services as they relate to macOSFamiliarity with software deployment, patching, and operating system updatesRequired Experience: 3+ yearsRequired Education: Bachelor's or equivalent in a related fieldRequired Certifications: Security+ CertificationDesired Experience:Jamf certification(s) such as Jamf Certified Associate or Jamf Certified TechExperience integrating Jamf Pro with Apple Business ManagerExperience with Apple Platform SSO, Microsoft Entra ID, Active Directory, or other enterprise identity solutionsFamiliarity with Python or other scripting/automation languagesExperience with macOS security hardening, DISA STIGs, CIS benchmarks, or similar security baselinesExperience managing FileVault recovery keys, certificates, configuration profiles, and PPPC/TCC settingsFamiliarity with PKI/certificate management and 802.1X/Wi-Fi configuration on macOSExperience supporting macOS in a DoD or other regulated enterprise environmentFamiliarity with Git/version control and maintaining administrative scriptsKnowledge of Apple deployment technologies such as Automated Device Enrollment, Bootstrap Tokens, Secure Tokens, and Recovery LockSecurity Clearance: Secret