OT Systems Administrator - Industrial Automation & Security

Reyes-Coca--cola-Bottlin; Rancho Cucamonga (CA); On-site; USD 95,000 - 120,000; Full time

Benefits offered by this job

Medical, Dental, Vision coverage

Paid Time Off

Retirement Benefits

Health Screenings

Job summary

Reyes Holdings seeks an OT Administrator to maintain and advance OT systems across industrial environments. You will support plant automation, HMI, historians, servers, and OT network infrastructure while coordinating with OT Security and operations teams.

Ideal candidates have a Bachelor’s in IT/CS/Engineering or substantial OT experience, with familiarity in ICS and IT/OT security practices. The role emphasizes updates, upgrades, and incident response planning.

Qualifications

• OT systems maintenance in industrial environments.
• Experience with plant automation and OT equipment.
• Knowledge of ICS and OT security best practices.

Responsibilities

• Maintain OT Systems in company industrial environments.
• Maintain plant automation and OT devices (HMI, historians, servers, remote access, network devices).
• Administer and maintain OT systems including ICS and OT platforms.
• Maintain OT network infrastructure standards and security measures.

Skills

OT Systems Management

Industrial Network Security

Incident Response

Patch Management

Plant Automation Knowledge

Documentation & Compliance

Education

Bachelor’s Degree in IT/CS/Engineering

High School Diploma with 3-5+ years OT experience

Tools

HMI

ICS (Industrial Control Systems)

OT Security Tools

Firewalls

Job description

Reyes Holdings seeks an OT Administrator to maintain and advance OT systems across industrial environments. You will support plant automation, HMI, historians, servers, and OT network infrastructure while coordinating with OT Security and operations teams.

Ideal candidates have a Bachelor’s in IT/CS/Engineering or substantial OT experience, with familiarity in ICS and IT/OT security practices. The role emphasizes updates, upgrades, and incident response planning.