Senior MSP Systems Engineer (Tier 3) - On-Site San Diego

MSP Hire, Inc.; San Diego (CA); On-site; USD 110,000 - 130,000; Full time

Job summary

myCREcloud is seeking an experienced Tier 3 MSP Systems Engineer to handle complex escalations, infrastructure projects, and advanced troubleshooting across multiple client environments. You’ll be the senior technical resource other engineers turn to when standard troubleshooting isn't enough.

We're looking for someone who can independently diagnose complex issues, implement lasting solutions, and help improve the reliability and performance of our clients' systems.

Qualifications

• 5+ years IT experience with MSP background.
• 3+ years in MSP-focused roles at Tier 3.
• Advanced Microsoft 365, Entra ID and Azure experience.
• Strong networking and virtualization skills (VMware/Hyper-V/Proxmox).
• Experience with RMM and PSA/ticketing tools.

Responsibilities

• Serve as Tier 3 escalation point for complex infrastructure, networking, cloud, and Microsoft 365 issues.
• Diagnose recurring problems, perform root cause analysis, and implement long-term solutions.
• Administer and troubleshoot Microsoft 365, Entra ID, Exchange Online, SharePoint, Intune, and Azure environments.
• Manage Windows Server, Active Directory, Group Policy, Remote Desktop Services, and virtualization platforms.
• Troubleshoot complex networking issues involving firewalls, switches, routing, VLANs, VPNs, and SD-WAN.
• Lead infrastructure upgrades, Microsoft 365 migrations, and cloud projects.
• Implement and maintain security controls including Conditional Access and MFA.
• Support backup, disaster recovery, and business continuity solutions.
• Mentor junior engineers, maintain technical documentation, and contribute to operational improvements.
• Communicate technical issues and solutions clearly to clients and internal teams.

Skills

MSP experience

Tier 3 escalations

Microsoft 365

Entra ID

Azure Hybrid

VMware/Hyper-V/Proxmox

Networking

RDS/Remote Desktop

Conditional Access

Documentation

Mentoring

Tools

RMM

PSA/ticketing

Documentation platforms

Job description

myCREcloud is seeking an experienced Tier 3 MSP Systems Engineer to handle complex escalations, infrastructure projects, and advanced troubleshooting across multiple client environments. You’ll be the senior technical resource other engineers turn to when standard troubleshooting isn't enough.

We're looking for someone who can independently diagnose complex issues, implement lasting solutions, and help improve the reliability and performance of our clients' systems.