Sr IT Specialist - MAC; Tier 3

Senior Mac Administrator – On-Site, Washington, DC

Public Trust Clearance (High) Required – U.S. Citizenship Required

Salary $118 - 130K

The Senior Mac Administrator provides Tier 3 macOS support and serves as the organizational subject matter expert for Apple systems. This on‑site role in Washington, DC ensures the reliability, security, and scalability of the Mac enterprise environment through advanced troubleshooting, automation, and strategic system design. The ideal candidate demonstrates technical leadership, deep expertise in macOS administration, and the ability to drive continuous improvements in enterprise Mac operations while maintaining compliance with federal security standards.

Provide advanced Tier 3 technical support for macOS workstations and peripherals. Serve as an SME for macOS integration, security, and enterprise management. Lead complex troubleshooting efforts, automation initiatives, and system optimization. Work closely with engineering and security teams to design, enhance, and support scalable Mac infrastructure solutions.

• Diagnose and resolve complex macOS hardware, software, and network issues
• Develop and maintain secure, enterprise‑level macOS configurations and policies
• Design and implement automation for deployment, patching, and compliance
• Manage and optimize MDM platforms such as Jamf and Intune
• Integrate macOS systems with enterprise services including AD, SSO, VPN, and email
• Oversee Apple Business Manager (ABM) and provisioning workflows
• Create and maintain SOPs, documentation, and knowledge base content
• Mentor Tier 1 and Tier 2 support teams and provide advanced escalation assistance
• Collaborate with Info Sec to maintain macOS compliance with security frameworks
• Support strategic planning and enhancements for Mac infrastructure

• Associate’s Degree in IT or related field required
• Bachelor’s Degree preferred

• 4–6 years of IT support experience, including 3+ years in enterprise macOS environments
• Experience managing MDM platforms and large‑scale Mac deployments
• Strong scripting background (Bash, Python) for automation

• Expert proficiency in macOS administration, Terminal, and diagnostic tools
• Strong networking knowledge (TCP/IP, VPN, Wi‑Fi) and security best practices
• Experience using enterprise ticketing systems such as Service Now
• Ability to lead projects and mentor technical staff
• Excellent written and verbal communication and documentation abilities

• Deep experience with Jamf Pro, Intune, and Apple Business Manager
• Knowledge of Active Directory, LDAP, and SSO integration
• Familiarity with CIS benchmarks, NIST, and compliance frameworks
• Experience supporting VIP or executive users

• 100% on‑site position in Washington, DC
• Hours:
  
  7:00 AM – 6:00 PM EST, Monday–Friday
• May require after‑hours support for critical issues or deployments