Systems Administrator

Description
We are looking for a Systems Administrator to support and strengthen enterprise infrastructure for an investment management organization in Menlo Park, California. This Long-term Contract position focuses on maintaining secure, reliable systems across identity, endpoint, network, and Microsoft environments. The ideal candidate brings a hands-on approach to administration and security, along with the ability to independently lead infrastructure initiatives in a regulated setting.

Responsibilities

Manage day-to-day administration of directory services, including Microsoft Active Directory and Entra ID, to support secure access and identity management. Oversee Microsoft 365, Windows Server, and Windows 10 environments to maintain system stability, user productivity, and consistent operational performance. Implement and support data protection controls using Microsoft Purview or a similar platform to help safeguard sensitive business information.

Monitor, maintain, and optimize security technologies such as CrowdStrike, Darktrace, or related tools to strengthen threat detection and response capabilities. Administer Fortinet networking equipment, including firewalls, switches, VPN connectivity, and VLAN configurations, to ensure secure and reliable network operations. Lead infrastructure and security-focused projects, taking ownership from planning through execution while aligning work with business and compliance needs.

Support audit readiness by preparing technical evidence, maintaining documentation, and assisting with control validation in a regulated environment. Troubleshoot system, endpoint, and access issues across core infrastructure platforms and coordinate timely resolution to minimize business disruption. Requirements
Hands-on experience administering Microsoft Active Directory and Entra ID in an enterprise environment. Strong working knowledge of Microsoft 365, Windows Server, and Windows 10 administration.

Experience with data loss prevention tools, preferably Microsoft Purview or a comparable solution. Familiarity with security platforms such as CrowdStrike, Darktrace, or similar endpoint and monitoring technologies. Practical experience managing Fortinet firewalls, switches, VPNs, and VLANs. Background supporting audits, evidence collection, or technology operations within a regulated industry. Ability to independently manage infrastructure and security initiatives with strong ownership and follow-through.

Experience with enterprise technologies such as Dell hardware and Citrix environments is beneficial. 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. Robert Half works to put you in the best position to succeed.

We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more. 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.

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