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Senior System Administrator; MSP​/Partial WFH

Remote / Online - Candidates ideally in
San Dimas, Los Angeles County, California, 91773, USA
Listing for: Bowman Williams
Remote/Work from Home position
Listed on 2026-09-08
Job specializations:
  • IT/Tech
    Systems Administrator, Windows Server, Cloud Computing: Infrastructure & Operations, Azure
Salary/Wage Range or Industry Benchmark: 115000 - 130000 USD Yearly USD 115000.00 130000.00 YEAR
Job Description & How to Apply Below
Position: Senior System Administrator (MSP / Partial WFH)

Senior System Administrator (MSP / Partial WFH)

Work Model:
Partial FH

Base Salary: $115,000 to $130,000

MSP

Experience:

Required

Why This Role Is Worth a Look

We are a growing Managed Services Provider hiring a Senior System Administrator to support advanced infrastructure, Microsoft cloud, security, and project work across multiple client environments.

This is a strong fit for an experienced MSP engineer who wants more ownership, more technical variety, and a clear path to deeper systems, cloud, security, and infrastructure work.

You will act as a senior escalation resource while also contributing to projects involving Microsoft 365, Azure, Entra , Intune, Windows Server, networking, endpoint security, automation, and client environment improvements.

What You Will Work On
  • Serve as a senior technical resource for escalated systems, cloud, network, endpoint, and security issues
  • Administer Windows Server, Active Directory, Group Policy, DNS, DHCP, file services, and core client infrastructure
  • Support Microsoft 365, Exchange Online, SharePoint, Teams, Entra , Azure, Intune, and endpoint management environments
  • Troubleshoot and improve firewalls, switches, VPNs, wireless, VLANs, routing, and general network connectivity
  • Lead or assist with infrastructure projects including migrations, deployments, upgrades, onboarding, cloud improvements, and security initiatives
  • Support endpoint security, backup, disaster recovery, patching, monitoring, and compliance related improvements
  • Work with RMM, PSA, documentation, and automation tools to maintain strong service delivery standards
  • Partner with service desk, project, and leadership teams to improve client environments and reduce recurring issues
  • Communicate clearly with clients, document technical work accurately, and maintain strong ownership through resolution
What We Are Looking For
  • 5+ years of IT support or systems administration experience
  • Recent MSP experience supporting multiple client environments is required
  • Strong Windows Server, Active Directory, Microsoft 365, Entra , Azure, and Intune experience
  • Experience with virtualization, backups, endpoint security, patching, and disaster recovery tools
  • Solid networking knowledge across DNS, DHCP, VLANs, VPNs, firewalls, switching, wireless, and routing
  • Ability to troubleshoot advanced issues across systems, cloud, networking, endpoints, and security platforms
  • Experience contributing to infrastructure projects, migrations, deployments, or client environment improvements
  • Strong documentation, communication, ticketing, prioritization, and client service skills
  • Ability to work independently while collaborating with technical teams in a fast moving MSP environment
Experience That Helps
  • Microsoft certifications such as AZ 104, MS 102, MD 102, SC 300, or related credentials
  • Network+, Security+, CCNA, or similar technical certifications
  • Experience with Connect Wise, Autotask, Ninja, Datto, Atera, IT Glue, Hudu, or similar MSP tools
  • Exposure to Power Shell, automation, AI enabled service delivery, or process improvement
  • Experience mentoring junior technicians or acting as a technical escalation lead
Compensation and Benefits
  • $115,000 to $130,000 base salary
  • Health insurance effective on day one
  • Vision, Dental, Critical Care, Accident, and Disability Insurance options
  • Medical and Dependent Care FSA
  • Employee Assistance Program, discounts, and additional perks
  • 401(k) with company match
  • Paid holidays and PTO
  • Technology certification reimbursement program
  • Salary increases for each certification passed
  • Strong technical growth across Microsoft cloud, Intune, Azure, security, networking, automation, and infrastructure projects
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Position Requirements
10+ Years work experience
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