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Systems Administrator
Job
Robert Half
Saint Louis, MO (In Person)
Full-Time
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Job Description
We are looking for an experienced Systems Administrator to support and enhance enterprise infrastructure operations in Saint Louis, Missouri. This Contract-to-Hire position is ideal for a senior team member who can balance strategic oversight with direct technical execution across servers, virtualization, networking, and cloud-connected services. The role will contribute to infrastructure reliability, operational efficiency, and service continuity while partnering with team members on complex technical initiatives.
Responsibilities:
- Direct infrastructure initiatives from initial scoping and design through implementation and post-deployment support.
- Administer virtualized server environments and core enterprise platforms to ensure stability, performance, and availability.
- Support network operations by maintaining switching, routing, and firewall technologies across the environment.
- Oversee Microsoft 365 identity and access administration, including Entra ID and related directory services.
- Create and enhance automation workflows using scripting and orchestration tools such as PowerShell, Power Automate, or comparable platforms.
- Strengthen security operations by assisting with vulnerability assessment, remediation tracking, and related infrastructure hardening efforts.
- Contribute to disaster recovery readiness through planning, test execution, documentation updates, and follow-up remediation activities.
- Produce and maintain clear operational runbooks for incident response, outage handling, and recurring support procedures.
- Serve as an escalation resource for advanced technical issues while providing guidance and mentorship to less experienced administrators.
- Perform hands-on infrastructure tasks such as server installation, hardware troubleshooting, cabling, and deployment of data center or AV equipment when needed