VDOT Senior Network Security Engineer

The client is seeking an experienced Senior Network Security Engineer to implement and support the agency's IT network, cloud, and computing infrastructure. This role involves performing day-to-day activities related to securing VDOT's infrastructure, documenting processes, conducting research, analysis, design, and implementation of the client's network and computing-related infrastructure.

The Senior Network Security Engineer will support a hybrid enterprise environment consisting of approximately 300 statewide locations, Palo Alto firewalls, Azure networking, ExpressRoute connectivity, WAF technologies, Splunk SIEM, SD-WAN, and mission-critical public-facing applications. This role partners closely with Infrastructure, Cloud Engineering, and the Information Security Office to maintain the confidentiality, integrity, and availability of network infrastructure.

Key Responsibilities

• Ensure network security architecture aligns with operational security standards prior to and after deployment.
• Lead investigation and containment of network security incidents.
• Review firewall rule requests and ensure compliance with security standards.
• Design and maintain secure hybrid network architecture across on-premises and Azure environments.
• Monitor security events using SIEM technologies and coordinate incident response activities.
• Perform network security assessments and recommend remediation strategies.
• Develop and maintain network security standards, diagrams, and operational documentation.
• Support penetration testing and remediation efforts.
• Participate in on-call support during critical security incidents.
• Conduct proactive threat hunting and anomaly detection.
• Validate WAF and firewall placement and integration exposure/connectivity. Lead implementation, review, and management of agency WAF(s).
• Identify and diagnose system problems and threats using system logs, line monitors, SIEM, diagnostic software, and test equipment.
• Identify, prioritize, and remediate network security vulnerabilities.
• Provide documentation, network architecture topology diagrams, IP schemes, firewall rules, and access controls when required.
• Work independently on assigned projects.