SCADA System Administrator; PT

Class Summary

This is a part‑time position with a maximum of 1,560 hours per year and is not eligible for paid holidays, leave, or benefits.

The Operational Technology (OT) System Administrator is responsible for system-wide EOL management for SCADA assets as well as managing and maintaining the hardware, software, programs and networks that support industrial control systems (ICS) and critical infrastructure within the organization. This is a 24/7/365 position required to be available in case of emergency. This position also coordinates SCADA projects, provides daily support to plant operations, PLC & SCADA programming and performs complex daily OT tasks with DWR SCADA Division.

This position requires elevated Security Clearance at the time of hiring.

This job is a civilian position in either a public safety department or in Information Technology with close ties to public safety. Due to the sensitive nature of this position, a public safety background is required which may include motor vehicle & criminal histories, credit check, and fingerprinting.

This job may require on-call rotation and emergency after hours, weekends, and/or holidays.

• System Management:
  Administer and maintain OT systems including SCADA, DCS, PLCs, HMI, and other industrial control systems.
• Network Management:
  Configure and maintain OT network architecture, firewalls and switches ensuring reliable communication between devices.
• Security:
  Implement cybersecurity policies and procedures, conduct vulnerability assessments, and ensure systems are protected from cyber threats.
  
  Troubleshooting:
  Diagnose and resolve issues in OT systems, hardware, and software.
• Integration:
  Manage the integration of OT systems, ensuring smooth data flow and operational continuity.
• Compliance:
  Ensure OT systems meet regulatory standards (NIST, IEC 62443).
• Documentation:
  Maintain system documentation, including network diagrams, configurations, PLC & Application programming and standard operating procedures (SOPs).
• Monitoring:
  Continuously monitor system performance, ensuring uptime, availability, and efficiency.
• Collaboration:
  
  Work with the engineering, IT, and operations teams to optimize OT system performance.

• Bachelor’s degree in Computer Science, Computer Networking, Cybersecurity, Information Technology or closely related field
• Three years of experience in the Computer / Process Automation Industry
• An equivalent combination of education and experience sufficient to successfully perform the essential duties of the job as those listed above
• Valid Driver’s License

• Hands‑on experience managing IT/OT systems, such as Wonderware SCADA, DCS, Allen Bradley PLCs, and Servers
• Experience in both IT and OT environments is a significant plus
• Prior experience in industrial cybersecurity is highly valuable
• Experience as a system admin managing and maintaining IT/OT Hardware and Software in a large system
• Proficient with P&, MS office and PDF editor

• CompTIA Security+ or A+ certification
• Cisco Certified Network Associate (CCNA)
• Windows server administrator

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Gwinnett County is an Equal Opportunity Employer. For more information regarding our hiring process, please click the links below:

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Gwinnett County is committed to creating a diverse workforce. As an Equal Opportunity Employer, we prohibit discrimination on the basis of genetic information (including sex), race, color, national origin (including ancestry), gender (identity and expression), sexual orientation, age, marital status, familial status (including pregnancy), disability, military or veteran status, religion, political affiliation, immigration status, homeless status, or any other category protected by law.

Reasonable accommodations for qualified individuals with disabilities may be requested. If you need an accommodation during the application, interview, or testing process, contact Human Resources at  or HREmploye This email is only for accommodation requests; for questions related to job postings, use