System Administrator - Level III
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 6 October 2026.
About the role
We are looking for a highly skilled System Administrator Level 3 with strong expertise in Microsoft Azure, Intune, Entra ID, Active Directory, Microsoft 365, virtualization, patch management, and deep infrastructure/network troubleshooting. The ideal candidate will be responsible for maintaining, optimizing, and securing our enterprise systems and ensuring high availability across all infrastructure components.
Key Responsibilities
Cloud & Identity Management
- Administer, configure, and optimize Microsoft Azure services including VMs, storage, networking, identity, and security.
- Manage Entra ID (Azure Active Directory) including conditional access policies, SSO, MFA, identity governance, and role-based access.
- Design, deploy, and maintain Intune/Endpoint Manager policies for device compliance, security baselines, app deployment, and autopilot provisioning.
Microsoft 365 Administration
- Administer Exchange Online, SharePoint Online, Teams, OneDrive, and M365 security/compliance center.
- Implement and enforce M365 governance, retention policies, and DLP standards.
On-Premises Infrastructure
- Maintain and support Active Directory, GPOs, DNS, DHCP, and domain controllers.
- Manage and troubleshoot virtualized environments (Hyper-V or VMware).
- Oversee patch management for servers, endpoints, and cloud environments.
Network & Infrastructure Troubleshooting
- Provide advanced L3 support for network, server, and endpoint issues.
- Troubleshoot connectivity, performance, authentication, and security incidents.
- Collaborate with network/security teams on complex problems and escalations.
Security & Compliance
- Implement best practices for system hardening, identity protection, and endpoint security.
- Monitor system performance, audit logs, and security alerts to ensure compliance.
Project Implementation
- Lead initiatives related to cloud adoption, modernization, and infrastructure upgrades.
- Document technical processes, architecture diagrams, and standard operating procedures.
Requirements
Qualifications
- Bachelor’s degree in IT, Computer Science, or related field (or equivalent experience).
- 5–8+ years of hands-on system administration experience.
- Industry certifications preferred:
Azure Administrator (AZ-104), Azure Solutions Architect, MD-102, MS-700, ITIL, VMware/Hyper-V certifications.
Nice to Have (Preferred Skills)
- Experience with tenant-to-tenant migrations (Microsoft 365 / Entra ID).
- Hands-on experience with file server to SharePoint Online migration using migration tools.
- Knowledge of PowerShell scripting for automation.
- Experience with backup/recovery solutions and monitoring tools.
Soft Skills
- Strong analytical and troubleshooting ability for complex, multi-layered systems.
- Excellent communication and documentation skills.
- Ability to work independently and as part of a global IT team.
- Strong sense of ownership, urgency, and customer focus.
What this role asks for
In most of Prime System Solutions's ads
Azure · Microsoft 365
Named in most of its open postings, whatever the role.
Read against Prime System Solutions's other open postings on this site.
The team: Internal HIRES STEADILY
This role is one of 15 open in Internal. 2 were posted in the last 30 days and the oldest in September: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Azure (13 of 15), Microsoft 365 (12 of 15), Active Directory (11 of 15), VMware (10 of 15), Networking (8 of 15), Cisco (7 of 15), Windows Server (6 of 15)
OTHER ROLES ON THIS TEAM
- IT Systems & Network Engineer - Level II posted Sep 30
- IT Support / Technical Support Engineer - Level I posted Sep 30
- System & Network Engineer (Level II) posted Aug 4
- SOC Analyst posted Mar 24
- NOC Engineer posted Feb 24
- Professional Services Engineer posted Dec 26
- System & Network Engineer (Level-I) posted Nov 14
- System & Network Engineer (Level II) posted Nov 14
- System & Network Engineer - Level II posted Sep 23
- Project Engineer posted Sep 23
- Systems Engineer (Level II) posted Sep 23
- Trainee Engineer (Internship to Hire Program) posted Sep 23
- Network Engineer - Level II posted Sep 23
- System & Network Administrator (Level-I) posted Sep 23
From the team and dates on Prime System Solutions's own job board.
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