Senior Microsoft Cloud & Infrastructure Engineer

Transitions Group; Irvine (CA); On-site; USD 110,000 - 160,000; Full time

Job summary

Courser seeks a Systems Engineer III to serve as a senior technical resource for Microsoft cloud services, server infrastructure, identity management, backup and DR, and escalated support.

The role emphasizes mentoring, design of scalable infrastructure, and operational improvement across Windows Server, Microsoft 365, and cloud platforms. Occasional onsite client interaction and collaboration with cross-functional teams are expected.

Qualifications

• 7+ years of experience in systems engineering, IT infrastructure, or MSP environments.
• Advanced experience supporting Windows Server environments.
• Strong expertise with Active Directory, DNS, DHCP, Group Policy, and file services.
• Extensive Microsoft 365 administration experience.
• Strong understanding of Entra ID, authentication, and identity management.
• Experience implementing and supporting Conditional Access and MFA.
• Experience supporting Azure-based workloads and cloud services.
• Experience with backup and disaster recovery platforms.
• Advanced troubleshooting skills; able to resolve complex issues.
• Excellent interpersonal, written, and verbal communication; mentor junior engineers.

Responsibilities

• Serve as senior escalation point for Microsoft 365, Windows Server, cloud services, identity platforms, and backup infrastructure.
• Perform advanced troubleshooting and root-cause analysis across servers and client environments.
• Provide mentorship to junior engineers and support staff.
• Create customer-ready summaries, technical recommendations, and remediation plans.
• Support service reviews and escalation discussions with actionable next steps.

Skills

Mentoring

Client engagement

Troubleshooting

Documentation

Cross-functional collaboration

Communication

Strategic planning

Tools

Windows Server

Active Directory

DNS

DHCP

Group Policy

PowerShell

Azure

Azure Virtual Desktop

RDS

Datto

Axcient

Huntress

SentinelOne

Job description

Courser seeks a Systems Engineer III to serve as a senior technical resource for Microsoft cloud services, server infrastructure, identity management, backup and DR, and escalated support.

The role emphasizes mentoring, design of scalable infrastructure, and operational improvement across Windows Server, Microsoft 365, and cloud platforms. Occasional onsite client interaction and collaboration with cross-functional teams are expected.