L3 Systems Engineer (MSP Experience Required)

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: TYPE OF WORK

Full Time

: SALARY

$1000-$1500

: HOURS PER WEEK

40

: DATE UPDATED

Aug 5, 2026

JOB OVERVIEW

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 ----------

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.

APPLY HERE: ----------

SKILL REQUIREMENT

Firewalls Azure Microsoft 365

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Job Post	Reporter	Rank	Reason	Date

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L3 Systems Engineer (MSP Experience Required)

Please login or register as jobseeker to apply for this job.

TYPE OF WORK

SALARY

HOURS PER WEEK

DATE UPDATED

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