About this role
This is a senior Level 3 systems engineering role under a Managed Service Provider model. You will be the escalation point across many separate client environments at once, administering Microsoft cloud services, managing Windows Server infrastructure, configuring firewalls and VPNs, and overseeing hypervisors and backups, all under SLA pressure. It is a context-switching, ownership-heavy role, not a single in-house estate. You will work full-time on New York business hours, remotely.
What you’ll do
- Serve as a senior escalation point across multiple client environments
- Resolve advanced Level 3 support tickets within SLA
- Administer Microsoft cloud services including Entra ID, Exchange Online, SharePoint, Intune, Azure VMs and Azure Virtual Desktop
- Manage on-premises infrastructure including Active Directory domain controllers, Group Policy and directory synchronisation
- Configure and troubleshoot hardware firewalls, VPNs, DPI-SSL and content filtering
- Oversee hypervisor environments and backup administration across client sites
- Maintain technical documentation including service notes, build docs, checklists and infrastructure diagrams
- Collaborate with internal teams and external client stakeholders
What we’re looking for
- Previous MSP (Managed Service Provider) experience
- Microsoft 365 administration - Entra ID / Azure AD, Exchange Online, SharePoint, Intune
- Azure Virtual Machines and Azure Virtual Desktop
- PowerShell scripting
- Windows Server administration, Active Directory domain controllers, Group Policy management and directory synchronisation
- Hardware firewall administration with hands-on vendor experience, including VPNs, DPI-SSL and content filtering
- Hypervisors and virtualisation
- Backup technologies and backup administration
- Complex troubleshooting, independent problem-solving and SLA-driven ticket resolution
- Technical documentation - service notes, build docs, checklists and infrastructure diagrams
- Strong communication across internal teams and external client stakeholders
- Availability during New York business hours, 9:00 AM to 6:00 PM ET
Nice to have
- Experience with specific firewall vendors such as SonicWall, Fortinet, Palo Alto or Meraki
- Familiarity with RMM and PSA tools such as ConnectWise, Autotask or NinjaRMM
- Microsoft certifications (MS-102, AZ-104, AZ-140 or equivalent)
- Experience with cloud migration projects
- Knowledge of ITIL or service desk best practices
- Experience creating and maintaining network and infrastructure diagrams using Visio or draw.io
About F5 Global Talent
F5 Global Talent is a people-first company that hires experienced professionals and places them in long-term, fully remote roles with leading U.S. companies. We are your direct employer of record — we handle payroll, equipment, HR, and ongoing support, so you can focus on doing your best work. To date we have placed 500+ professionals, and 98% remain with their role past the first 90 days.