Senior System Administrator (MSP / Partial WFH)

Bowman Williams; San Dimas (CA); Hybrid; USD 115,000 - 130,000; Full time

Benefits offered by this job

Health insurance

401(k) with company match

Paid holidays and PTO

Technology certification reimbursement

Job summary

Bowman Williams seeks a Senior System Administrator (MSP / Partial WFH) to support advanced infrastructure, Microsoft cloud, security, and project work across multiple client environments.

The role requires MSP experience and strong expertise in Windows Server, Active Directory, Microsoft 365, Entra ID, Azure, and Intune, with a focus on ownership, technical variety, and growth into security and cloud projects.

Qualifications

• Minimum 5+ years in IT support or systems administration, preferably in MSP settings.
• Recent MSP experience supporting multiple client environments is required.
• Strong experience with Windows Server, Active Directory, Microsoft 365, Entra ID, Azure, and Intune.
• Hands-on with virtualization, backups, endpoint security, patching, and DR tools.
• Solid networking knowledge across DNS, DHCP, VLANs, VPNs, firewalls, and routing.
• Ability to manage complex issues across systems, cloud, networking, endpoints and security.

Responsibilities

• Serve as a senior escalation resource for systems, cloud, network, endpoint, and security issues.
• Administer Windows Server, Active Directory, Group Policy, DNS, DHCP, file services and core client infra.
• Support Microsoft 365, Exchange Online, SharePoint, Teams, Entra ID, Azure, Intune, and endpoint mgmt.
• Troubleshoot and improve firewalls, switches, VPNs, wireless, VLANs, routing, and connectivity.
• Lead or assist infrastructure projects including migrations, deployments, upgrades and security initiatives.
• Support endpoint security, backup, disaster recovery, patching, monitoring and compliance improvements.
• Work with RMM/ PSA/ documentation/ automation tools to maintain service delivery standards.
• Collaborate with service desk, project and leadership teams to enhance client environments.
• Communicate clearly with clients and document technical work with ownership through resolution.

Skills

MSP experience

Windows Server

Active Directory

Microsoft 365

Azure

Intune

Networking

Documentation

Troubleshooting

Automation

Tools

ConnectWise

Autotask

Ninja

Datto

IT Glue

Hudu

Job description

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 ID, 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 ID, 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 ID, 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 ConnectWise, Autotask, Ninja, Datto, Atera, IT Glue, Hudu, or similar MSP tools
• Exposure to PowerShell, 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