Apple & Windows Operating Systems Lead

The Apple & Windows Operating System Lead is responsible for the administration, maintenance, and optimization of enterprise Windows Server and Apple (Mac) environments supporting the NRC High Performance Computing System (HPCS). This role ensures system reliability, security compliance, and operational efficiency across hybrid infrastructure environments., * Administer and maintain Windows Server (cloud/on-prem) and Mac OS environments

• Install, configure, patch, and upgrade operating systems and enterprise applications
• Manage Active Directory integration, group policies, and user accounts
• Monitor system performance and troubleshoot hardware/software issues
• Implement and maintain system security controls in compliance with FISMA standards
• Perform system backups, recovery, and continuity operations
• Coordinate with network teams for LAN/VLAN connectivity and firewall configurations
• Maintain system documentation, configuration baselines, and asset inventory
• Support continuous monitoring, vulnerability remediation, and POA&M activities
• Evaluate and recommend hardware/software solutions
• Provide Tier II/III support to users and stakeholders
• Participate in change control processes and system upgrades

Deliverables & Expectations

• Monthly status and asset reporting
• Participation in system health reviews and change control boards
• Continuous improvement and modernization of systems
• Maintain high availability and operational readiness of HPCS systems

• 8+ years of experience in Windows Server administration
• Experience supporting Apple/Mac enterprise environments
• Strong knowledge of:
• Active Directory, Group Policy
• Windows Server (2016/2019/2022)
• Endpoint management tools
• Experience with cloud environments (e.g., AWS GovCloud, Azure)
• Familiarity with FISMA, NIST security controls, and federal IT compliance frameworks
• Strong troubleshooting and system optimization skills

Education

• Bachelor's degree in IT, Computer Science, or related field (or equivalent experience)

Clearance

• Must be able to obtain and maintain an NRC security clearance (Public Trust or higher).

Preferred Qualifications

• Microsoft certifications (e.g., MCSA, MCSE, Azure Administrator )
• Apple certifications (e.g., ACSP, Jamf certifications )
• Experience in federal or regulated environments
• Experience supporting HPC or scientific computing environments, The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of the job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.
• Location: Rockville, MD
• Type of environment: Onsite - NRC Headquarters (Rockville, MD) with support to NRC data centers and cloud environments
• Noise level: Medium
• Work schedule: Standard hours: 8:00 AM - 5:00 PM
• Amount of Travel: Participation in on-call rotation. Ability to respond onsite within 1 hour if required

WORK AUTHORIZATION/SECURITY CLEARANCE

U.S. Citizen

Must be able to obtain and maintain an NRC security clearance (Public Trust or higher), The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to use hands to handle, feel, touch; reach with hands and arms; talk and hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds. The employee is frequently required to lift up to 25 pounds; and up to 50 pounds. The vision requirements include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus.

We offer our full-time employees a competitive benefits package to include health, dental, vision, 401K, life insurance, short-term and long-term disability plans, vacation time and holidays.