Network Security Engineer – Operational Technology
Company: City of Naperville
Category: IT
Naperville
Type: Full Time
The City of Naperville’s Electric Utility is currently seeking an Operational Technology (OT) Security Engineer to provide network security for the defense and lifecycle operations of critical assets within a complex, blended, IT and OT environment for the City’s Electric Utility.
The OT Security Engineer is primarily responsible for the design, deployment, monitoring, and maintenance of security controls across IT, Smart Grid, and OT infrastructure within the City’s Electric Utility. This role supports the secure operation of critical systems by implementing and maintaining network security monitoring, vulnerability management, asset management, intrusion detection/prevention systems (IDS/IPS), incident response capabilities, security operations, and remediation programs tailored to a converged IT/OT environment.
The anticipated hiring range for this position is $94,971.26 – $104,468.39 per year, commensurate with credentials and experience. Excellent benefits package that includes medical, dental, and vision benefits, life insurance coverage, flexible spending account, deferred compensation, and participation in the Illinois Municipal Retirement Fund (IMRF).
Responsibilities:
- Assists in the installation, maintenance, monitoring, and troubleshooting of network security infrastructure, such as firewalls, intrusion detection/prevention systems, and secure connectivity solutions.
- Implements best practices in compliance with NERC/CIP, where applicable.
- Monitors security advisories and supports the application of required security updates, patches, and preventative measures across networked systems.
- Uses security and diagnostic tools to conduct basic testing of services, devices, and network components to validate proper operation of patches and implemented controls.
- Reviews audit logs to identify potential security threats and assist in maintaining network monitoring, vulnerability scanning, and intrusion detection programs.
- Supports sustainable encryption, remote access, and secure communication strategies for internal users and systems.
- Collaborates with Network Security Engineers and the broader IT team on projects involving system integration, monitoring enhancements, and defense-in-depth improvements.
- Assists in preparing procedures, technical documentation, diagrams, and reports to document security activities and provide reference materials.
- Helps train technical support staff on security policies, procedures, and best practices.
- Stays informed on industry trends, technologies, and emerging threats to support continuous improvement of the organization’s security posture.
- Provides backup support to Network Security Engineers and System Administrators, assuming administrative responsibilities as assigned.
- Assists in resolving escalated end-user issues and support general technical troubleshooting as needed.
