Network Security Engineer at City of Naperville

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https://illinoisjoblink.illinois.gov/jobs/13496638


City of Naperville

Employment Opportunity

Job Title

Network Security Engineer Operational Technology (OT) (3024)

Closing Date

When filled

Salary

\$94,971.26 \$104,468.39 per year

Job Type

Full-Time

Location

DPU-E Distribution & Engineering, 1392 Aurora Ave., Suite 100

Department

Department of Public Utilities - Electric

The City of Napervilles 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 Citys 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 Citys 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. The

Pay Grade for this position is E250. For additional information,

please [ click

here ]( https://www.naperville.il.us/contentassets/a9086ae84ab4418388994da74afe0db8/non-union-pay-ranges-as-of-7-1-2025.pdf).

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 organizations 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.

Performs all other duties as assigned.

Qualifications

Required A Bachelors Degree in Computer Science or a related field.

3-years of professional experience in the network security or

cybersecurity fields.

Demonstratable experience in the cybersecurity, network security,

information security analysis, or cyber security fields.

Valid Cisco Certified Network Associate Security (CCNA Sec) or CompTIA

Security+ certification, or t e ability to obtain one of these

certifications within twelve (12) months of hire.

A valid State of Illinois drivers license.

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