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OT Systems Administrator

OT Systems Administrator

Covenant HRCastle Rock, CO, US
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Job Description

Company – Our client is a mission-driven public sector organization focused on delivering essential infrastructure services to the community. Known for its collaborative culture and commitment to innovation, this organization prioritizes professional growth, operational excellence, and impactful service delivery. It’s an ideal environment for technically skilled professionals who thrive in purpose-oriented, team-based settings.

Job Title – OT Systems Administrator

Location – On-site in Castle Rock, CO

Role Type – Direct Hire (Full-Time)

Must Have Skills :

  • Server Management Expertise : Proven ability to set up, configure, and manage servers supporting SCADA environments, including paired servers across multiple plant sites.
  • VMware Administration : Strong experience with VMware virtual environments, including configuration, monitoring, and maintenance for reliable SCADA operations.
  • Active Directory Management : Hands-on experience managing Active Directory, including user accounts, permissions, and security policies for new and existing employees.
  • SCADA Software Familiarity : Working knowledge of SCADA-related software (such as FactoryTalk and Ignition), particularly with updates, firmware management, and troubleshooting.
  • Networking as a Plus : Exposure to networking (switches, communications, firewalls) to provide support for the Network Engineer when server workload is light.

Responsibilities and Job Details :

  • Provide daily server support for the SCADA system within Castle Rock Water
  • Manage and regularly test OT disaster recovery and business continuity plans
  • Perform preventative maintenance and apply patch updates across server infrastructure
  • Serve as backup support for network security technologies including firewalls and wireless access points
  • Plan and implement virus protection strategies and procedures
  • Document and enforce standardized server configurations and provide cross-training to Instrument and Control Technicians
  • Deliver second-level support for complex server and network issues
  • Oversee VMware infrastructure, SAN, Active Directory, DNS, SQL Server, and CRW / SCADA domain hardware
  • Implement and maintain OT solutions aligned with modern security architectures
  • Collaborate closely with the IT security team to support cybersecurity frameworks and zero trust principles
  • Conduct risk assessments and perform regular vulnerability scanning
  • Stay up to date with industry trends and contribute to continuous improvements in system performance and security
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    System Administrator • Castle Rock, CO, US

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