JOB SUMMARY/PURPOSE

This position leads the team in securing Entergy’s networks from internal and external threats across corporate Information Security (IS), Information Technology (IT) and Operational Technology (OT); including data centers, office building, control centers, power plants, and substations. The engineer will drive the execution of processes and develop automation opportunities to monitor, control and detect malicious or anomalous network traffic, maintain established level of network services and network security policies, and remediate any gaps to achieve optimal level of security in the network. The engineer will also drive the team to ensure that network security operations are maintained to be audit ready in compliance with NRC Nuclear Cyber, NERC CIP and Sarbanes-Oxley regulations.

JOB DUTIES/RESPONSIBILITIES

• Network Access Control: Execute and assist junior engineers with the engineering, deployment, and execution of day-to-day operations of Network Access Control (NAC) technologies. This includes the management of authentication policies (802.1X/MAB), endpoint profiling, and posture assessment to secure wired, wireless, and VPN access across IT and OT environments.
• Microsegmentation: Execute and assist junior engineers with the rollout and management of Software-Defined Microsegmentation tools. Focus on providing deep visibility and policy enforcement for East-West traffic within data centers and cloud environments, ensuring granular security that prevents lateral movement without disrupting critical services.
• Certificate Management: Administer and automate the lifecycle of digital certificates using enterprise certificate management platforms. Maintain Certificate Authorities (CA) and certificate validation infrastructures to ensure secure encryption across the enterprise.
• Strategy & Trend Analysis: Provide input to the development and implementation of the strategy, roadmap, and project delivery for network security in coordination with the Security Architecture and Enterprise Architecture functions. Monitor network security trends for their area of support and suggest improvements to policy, procedures, tools and technologies to enhance the security of Entergy’s network.
• Continuous Improvement: Drive continuous improvement processes, operational excellence and deliver world-class network security solutions for all corporate and operational technology needs, including business operations, power generation units, electric substations, system control and data acquisition (SCADA) systems, distribution automation (DA), and advanced metering infrastructure (AMI).
• Troubleshooting & Root Cause Analysis: Serve as an escalation point for complex network security issues. Lead efforts to identify, diagnose, and resolve technical friction between security controls and business applications, ensuring optimal performance and minimal operational impact.
• Data Analytics & Metrics: Develop and track metrics for the effectiveness and maturity of network security operations. Utilize analytical skills to design, build, and modify dashboards and reporting tools (e.g., PowerBI or Splunk) that provide visibility into the effectiveness, maturity, and health of network security operations.
• Compliance & Regulatory: Assist with compliance efforts for network security, specifically requirements in support of North American Electric Reliability Corporation Critical Infrastructure Protection (NERC CIP), Nuclear Regulatory Commission (NRC) Nuclear Cyber (10 CFR 73.54), and Sarbanes-Oxley.
• On-Call & Operational Coverage: Participate in a 24/7, 365-day rotational on-call schedule to support critical infrastructure. Available to respond to urgent production issues outside of standard business hours, including nights, weekends, and holidays.
• Leadership:
• • Organize the team’s work and assign tasks and projects to team members.
  • Be the escalation person for technical issues and administrative tasks/questions (timecard, expenses, change management training/questions, etc).
  • Direct team members to the proper procedure, process, work instruction, contact person, etc to assist team members in resolving their issue.
• Coaching / Mentorship: Serve as a subject matter expert, coaching junior analysts on advanced security initiatives, particularly within NAC and microsegmentation. Guide team members to develop advanced skill sets while improving overall operational security.
• Other duties as required.

• Benefits