Systems Administrator

Robert Half • Redmond, WA, US • $45 - $75 / hour • 20h ago

Robert Half is seeking a Systems Administrator to support a healthcare organization based in Washington State. This role will focus heavily on CrowdStrike administration, Windows Server cleanup/migrations, and stabilizing ongoing network reliability issues. This is a 3-month contract with the potential to extend or convert, depending on performance and team needs. The work is onsite / hybrid, with flexibility based on project phases.

Job Details

Schedule: Full-time, standard business hours

Duration: 3-month contract (extendable / contract-to-hire potential)

Location: Onsite/hybrid.

Job Responsibilities

Own CrowdStrike Falcon deployment, configuration, health validation, and remediation
Perform a full CrowdStrike environment assessment and present findings to leadership
Troubleshoot and correct sensor issues on servers and endpoints
Diagnose and fix CrowdStrike visibility issues relating to data, SharePoint, and servers
Support Windows Server discovery, assessment, cleanup, and transition planning
Safely decommission legacy Windows Server 2008 systems
Stabilize and troubleshoot GPO issues, DNS/DHCP problems, and authentication issues
Support environments running custom .NET and SQL-based workloads
Investigate and resolve network issues involving WiFi, VPN, QoS, and firewall/VPN performance
Identify root causes of issues with SonicWall firewall, Aruba WiFi, ClearPass, and ISP routers
Assist with file share migrations into SharePoint / OneDrive / Microsoft 365
Support ongoing 365 ecosystem troubleshooting
Collaborate with internal IT leadership to prioritize infrastructure projects
Provide general systems administration and ticket resolution as needed

Job Requirements

1. CrowdStrike (Highest Priority)

Hands-on ownership of Falcon deployment
Experience with sensor deployment, troubleshooting, and configuration
Ability to conduct an environment-wide EDR health assessment
Understanding of EDR / NDR fundamentals
Experience fixing visibility gaps on servers, SharePoint, or file systems

2. Windows Server Administration

Experience with Server 2008 → 2016/2019/2022
Able to perform server discovery, assessment, and transition planning
Comfortable shutting down/retiring legacy 2008 servers
Knowledge of GPO cleanup, especially in environments where past changes caused outages
Experience supporting custom .NET and SQL server workloads

3. Networking Troubleshooting

SonicWall firewall + SSL VPN exposure
Aruba WiFi + ClearPass experience
Ability to diagnose issues such as:
Router interference
AP placement
WiFi calling problems
QoS misconfigurations
VPN inconsistencies
Ability to stabilize physical and logical network performance

4. Microsoft 365 / SharePoint / OneDrive

Experience assisting with migrations from file shares into M365
SharePoint 2010 cleanup/refinement experience is a plus
Ability to troubleshoot ongoing O365 ecosystem issues

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All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.