Systems Administrator

About the Role

Total Network Solutions (TNS) is a growing Managed IT Services provider supporting businesses across Southern California. We are looking for an experienced Systems Administrator / Field Engineer who enjoys solving technical problems and working directly with clients.

This role is a combination of office-based support and onsite client work. You will typically split your time in the office and out in the field performing troubleshooting, maintenance, and infrastructure improvements.

You will work with a wide range of technologies including Microsoft 365, Intune, Windows Server, security appliances and other network equipment, and endpoint systems.

This is not an entry-level helpdesk role. We are looking for someone who can take ownership of technical issues, work independently at client sites, and represent our company professionally.

Prior MSP experience is strongly preferred.

What You’ll Do: Client Support & Field Engineering

• Provide onsite and remote IT support for business clients
• Diagnose and resolve server, network, and workstation issues
• Perform scheduled onsite visits for maintenance and system upgrades
• Serve as a trusted technical resource for clients
• Communicate clearly with both technical and non-technical users

Microsoft 365 & Systems Administration

• Manage and support Microsoft 365 environments (Exchange Online, Teams, SharePoint, Entra ID)
• Configure and manage Microsoft Intune device management
• Maintain Windows Server infrastructure and Active Directory
• Manage Group Policy, DNS, DHCP, and authentication services
• Assist with Microsoft 365 migrations and tenant configuration

Networking & Infrastructure

• Configure and troubleshoot business-class firewalls and networks
• Support and deploy equipment including:
• Fortinet
• Meraki
• Ubiquiti
• SonicWall
• Troubleshoot VPN connectivity, switching, and wireless networks
• Assist with network upgrades and infrastructure projects

IT Operations

• Use ticketing and documentation systems to track work and maintain client records
• Work with RMM tools to monitor and manage systems
• Perform patching, updates, and security improvements
• Document systems and procedures

Required Experience

• 3+ years of IT systems administration experience
• Experience supporting Microsoft 365 environments
• Strong knowledge of:
• Windows Server
• Active Directory
• DNS / DHCP
• Microsoft Intune
• Experience with business networking equipment and firewalls
• Strong troubleshooting skills across servers, networks, and endpoints
• Ability to manage multiple issues and prioritize effectively
• Strong client communication skills
• Valid driver’s license and reliable transportation for client visits

Preferred Experience

• Prior MSP experience
• Experience with RMM and PSA tools
• NinjaRMM
• Autotask
• Huntress

Experience with:

• Microsoft Entra ID
• Azure
• Backup and disaster recovery systems
• Experience performing:
• PC deployments
• Domain migrations
• Microsoft 365 tenant setups

Certifications (Preferred but Not Required)

• Microsoft Certifications
• CompTIA Network+
• Fortinet NSE
• Cisco / Meraki certifications

What We Offer

• Competitive salary
• Health benefits
• Paid time off
• Paid holidays
• Opportunities for technical growth and certification
• Exposure to diverse business environments and technologies
• A collaborative team focused on delivering excellent IT support

About Total Network Solutions

Total Network Solutions is a Managed IT Services provider delivering 24/7 IT support, infrastructure management, and cybersecurity services to businesses across the North America. We have been serving customers and our community for the last 28 years. Our clients rely on us to keep their systems running securely and efficiently.

We value engineers who take ownership of problems, communicate well with clients, and continuously improve their technical skills.

Apply Today

If you are an experienced IT professional who enjoys solving technical problems, working with clients, and building reliable systems, we encourage you to apply.

Pay: $70,000.00 - $85,000.00 per year

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Health insurance
• Paid time off
• Vision insurance

Application Question(s):

• Experience with Microsoft 365 and Intune administration
• Experience with Active Directory, HyperV, and File/Print Services within the Microsoft Server stack.
• Experience working with Fortinet, Meraki, Ubiquiti, or SonicWALL network equipment.

Experience:

• System administration: 3 years (Required)

Location:

• Long Beach, CA 90806 (Preferred)

Ability to Commute:

• Long Beach, CA 90806 (Required)

Work Location: In person