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Senior Network Administrator/Network Operations Lead

SOSi

Temporary | Contract

Ford Island, HI

Job description

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

Technology Doesn't Change the World, People Do. ®

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

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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.

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