• Systems Administrator

    Robert Half Technology (Houston, TX)


    Description

    We’re looking for an experienced Systems Administrator with a strong background in Operational Technology (OT) environments and Microsoft Azure infrastructure. The ideal candidate will be responsible for managing hybrid systems, supporting secure OT/IT integration, and ensuring the reliability and protection of our networked systems across multiple sites.

     

    + Administer, configure, and maintain Azure-based systems, including virtual machines, networking, Active Directory, and storage solutions.

    + Manage on-premises Operational Technology (OT) systems and coordinate with plant or facility teams to ensure uptime and security.

    + Oversee system monitoring, backups, patch management, and disaster recovery processes.

    + Collaborate with cybersecurity teams to implement best practices, vulnerability remediation, and incident response for both IT and OT networks.

    + Maintain and improve hybrid connectivity between on-prem and cloud systems (Azure Arc, VPNs, etc.).

    + Support user account management, group policies, and endpoint management across environments.

    + Develop and maintain documentation, standard operating procedures (SOPs), and technical diagrams.

    + Participate in after-hours maintenance and on-call rotation as needed.

    Requirements

    + 5+ years of experience as a Systems Administrator or similar role.

    + Proven experience managing Azure IaaS/PaaS environments (VMs, Azure AD, Azure Security Center, etc.).

    + Hands-on experience with Operational Technology (OT) systems (industrial control systems, PLCs, SCADA, or plant-floor networks).

    + Working knowledge of Windows Server, Active Directory, PowerShell scripting, and networking fundamentals.

    + Familiarity with security principles (least privilege, MFA, SIEM/SOC tools, endpoint protection).

    + Strong troubleshooting, documentation, and communication skills.

     

    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 (https://www.roberthalf.com/us/en/mobile-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. Visit roberthalf.gobenefits.net for more information.

     

    • 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) .