Info Sec Engineer III

Job Title: Info Sec Engineer III

PS

Job Title:

Info Sec Engineer III

Work Place Flexibility: Hybrid

Legal Entity: Entergy Services, LLC

* This position is based out of The Woodlands, TX and Little Rock, AR This position will be filled as a Info Sec Engineer III. Relocation assitance is not provided. *

This position assists in securing Entergy’s networks from internal and external threats across corporate Information Security (IS), Information Technology (IT), and Operational Technology (OT). The engineer will assist with the lifecycle management, expansion, and operational support of Network Access Control (NAC), Microsegmentation, and Certificate Management solutions across data centers, office buildings, and critical infrastructure. This role requires a high degree of attention to detail, strong troubleshooting capabilities, and the ability to build strong relationships with internal business partners and external vendors.

The engineer will assist with the execution of processes, develop automation, and leverage analytical skills to create metrics and dashboards that maintain audit readiness for NRC Nuclear Cyber, NERC CIP, and Sarbanes-Oxley regulations.

• Network Access Control: Support the engineering, deployment, and execution of day-to-day operations supporting design and policy decisions for network access control. This includes identity-based access policies, endpoint profiling rules, and posture assessment criteria, to secure wired, wireless, and VPN access across IT and OT environments. Assist in policy and exception management initiatives.
• Microsegmentation & Macrosegmentation: Execute the rollout and management of both hardware and 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.
• Artificial Intelligence and Automation: Support the modernization of key operational processes through intelligent automation and AI-driven solutions. Design and implement automation platforms that reduce manual overhead, scale operations efficiently, and enable the team to accelerate delivery on security program goals. Proactively identify opportunities to automate workflows, enhance monitoring and decision-making, and strengthen organizational security and reliability—directly driving business impact and customer trust.
• 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: Support 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: Utilize analytical skills to design, build, and modify dashboards and reporting tools that provide visibility into the effectiveness, maturity, and health of network security operations.
• Compliance & Regulatory: Assist with compliance efforts for network security, specifically requirements…