System Administrator
Location
United States
Posted
2 days ago
Salary
Not specified
Seniority
Mid Level
Job Description
Role Description
On Call Computer Solutions is seeking a proactive, client-focused System Administrator to support and improve the technology environments of our managed services clients. This role is ideal for someone who can think beyond break/fix work, prevent issues before they become outages, and own escalations through resolution.
-
Proactively administer and maintain client environments, including:
- Windows Server
- Active Directory
- Microsoft 365
- Entra ID/Azure AD
- Virtualization platforms
- Backup systems
- Core infrastructure
- Keep systems healthy, patched, monitored, and operating with minimal recurring issues and downtime.
-
Own escalated support tickets and infrastructure tasks from diagnosis through completion, including:
- Root-cause troubleshooting
- Permissions
- Onboarding/offboarding
- Server maintenance
- Line-of-business application support
- Small-to-mid-sized technical projects
- Document work clearly and communicate effectively with clients and internal teams.
-
Improve client security and resilience by enforcing standards for:
- Patching
- MFA
- Endpoint hygiene
- Backup verification
- Disaster recovery readiness
- System documentation
- Change control
- Identify risks early and recommend practical remediation steps that improve stability, security, and long-term service quality.
- Other Duties as Assigned.
Qualifications
- 3+ years of hands-on systems administration, infrastructure support, or MSP engineering experience.
-
Strong experience with:
- Windows Server
- Active Directory
- Microsoft 365
- DNS
- DHCP
- Virtualization
- Backup/recovery
- Endpoint management
-
Working knowledge of networking fundamentals, including:
- Switching
- Routing
- VPNs
- Firewalls
- Remote access
- Experience with ticket-driven service delivery, documentation, patch management, and proactive maintenance.
- Strong troubleshooting skills with the ability to communicate clearly to both technical and non-technical users.
Requirements
- MSP experience supporting multiple client environments.
- Experience with Azure, Entra ID, Intune, and cloud migrations.
- Familiarity with business continuity and disaster recovery testing.
- Experience working in security-conscious or compliance-driven environments.
- Relevant Microsoft, CompTIA, or vendor certifications.
Job Requirements
- 3+ years of hands-on systems administration, infrastructure support, or MSP engineering experience.
- Strong experience with: Windows Server
- Active Directory
- Microsoft 365
- DNS
- DHCP
- Virtualization
- Backup/recovery
- Endpoint management
- Working knowledge of networking fundamentals, including: Switching
- Routing
- VPNs
- Firewalls
- Remote access
- Experience with ticket-driven service delivery, documentation, patch management, and proactive maintenance.
- Strong troubleshooting skills with the ability to communicate clearly to both technical and non-technical users.
- MSP experience supporting multiple client environments.
- Experience with Azure, Entra ID, Intune, and cloud migrations.
- Familiarity with business continuity and disaster recovery testing.
- Experience working in security-conscious or compliance-driven environments.
- Relevant Microsoft, CompTIA, or vendor certifications.
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