The System Administrator role involves the maintenance, installation, configuration, and management of hardware and software on Operational Technology (OT) endpoints, including HMIs, engineering workstations, and servers that host SCADA applications. The position requires deploying and managing endpoint security tools tailored for OT environments, applying security patches, and conducting regular software updates. As a first responder for security incidents affecting OT endpoints, the System Administrator will conduct malware analysis and digital forensics to identify the root cause of events and restore normal operations. Troubleshooting skills are essential for diagnosing and resolving software, hardware, and network communication issues related to OT endpoints and their connections to Industrial Control Systems (ICS) and SCADA environments. The role also includes tracking vulnerabilities in OT systems, recommending mitigation strategies, and performing risk assessments to identify security weaknesses. Collaboration with OT operators, control systems engineers, and IT security teams is crucial to integrate security measures without disrupting operations. Compliance with industry standards such as IEC 62443 and NIST 800-82 is required, along with maintaining detailed documentation of system configurations, network diagrams, and incident response procedures. Additionally, the System Administrator will be responsible for maintaining an accurate inventory of all OT endpoints and related software throughout their lifecycle.