Senior Cyber Network Engineer

About the Role

The Senior Network and Cyber Engineer is responsible for the design, security, performance, and continuous improvement of the LBJ Infrastructure Group's network, cybersecurity, and field systems environments. This role combines advanced network engineering, cybersecurity governance, and system architecture responsibilities to support mission-critical Network Communication Systems (NCS), Intelligent Transportation Systems (ITS), and Data Center Operations. The position ensures high availability, scalability, and security of hybrid IT/OT environments, while driving modernization initiatives, audit compliance, and technology lifecycle management across the DFW Cintra companies' corridors.

Key Responsibilities

• Network Architecture & Engineering: Design, implement, and maintain scalable and secure network architectures across data center, field, and hybrid environments. Lead network modernization efforts including NCS refresh, segmentation, and resiliency improvements. Ensure integration across field systems, tolling platforms, back-office systems, and cloud services.
• Cybersecurity Governance & Compliance: Lead and support cybersecurity audits, regulatory compliance, and internal control frameworks. Develop and enforce cybersecurity standards, policies, and best practices. Provide audit evidence, system logs, and remediation tracking for internal and external audits.
• Vulnerability & Threat Management: Oversee vulnerability scanning, risk prioritization, and remediation coordination. Manage threat detection, incident response, and security monitoring processes. Drive continuous improvement of the vulnerability management lifecycle.
• Network Operations & Monitoring: Monitor network performance, availability, and security alerts across all environments. Troubleshoot complex issues involving routing, switching, firewalls, VPNs, and field connectivity. Ensure SLA and KPI adherence for system uptime and performance.
• Fortinet & Security Infrastructure Management: Administer Fortinet ecosystem (FortiGate, FortiManager, FortiAnalyzer). Perform security event analysis, log correlation, and incident investigation. Maintain secure network segmentation and firewall policies aligned with cybersecurity strategy.
• Field Systems & ITS Infrastructure Support: Maintain connectivity and operational performance of all field systems (gantries, roadside equipment, fiber infrastructure). Support lifecycle management including patching, upgrades, and hardware refresh. Collaborate with vendors and integrators to ensure system reliability and performance.
• Infrastructure Documentation & CMDB Management: Maintain accurate network documentation, diagrams, and asset inventory using NetBox and monitoring tools. Ensure documentation supports audit readiness, operational continuity, and knowledge transfer.
• System Operations & Reliability: Oversee operations and maintenance of IT infrastructure, including servers, networks, and communications systems. Support testing, upgrades, system rollouts, and performance optimization activities. Perform capacity planning and proactively address system constraints.
• Business Continuity & Disaster Recovery: Develop and maintain disaster recovery and business continuity plans for critical systems. Participate in incident response drills and ensure operational resilience.
• Continuous Improvement & Innovation: Identify opportunities for process automation, system optimization, and cost efficiencies. Support initiatives such as cloud adoption, observability enhancements, and advanced monitoring solutions. Drive reduction of operational risk and external vendor dependency.

Qualifications

• Advanced network engineering knowledge (routing, switching, VPNs, BGP/OSPF).
• Strong cybersecurity expertise including vulnerability and incident management.
• Experience with Fortinet technologies and network monitoring tools.
• Knowledge of OT/ITS environments and field systems.
• Strong documentation and communication skills.

Education & Experience

• Bachelor's degree in IT, Network Engineering, or Cybersecurity.
• 5–8+ years of relevant experience in network and cybersecurity roles.

Certifications

• Fortinet NSE, CCNP/CCIE, CISSP, Security+, or equivalent preferred.

Working Conditions

• Combination of office, field, and data center work.
• Participation in on-call rotation.
• Occasional after-hours maintenance work.
• Specific vision abilities required include the ability to adjust focus, as necessary to use a computer.
• While performing duties, the employee is regularly required to talk or hear.
• Regularly lift and/or move up to 10 pounds and occasionally lift and/or move up to 50 pounds.
• The noise level in the work environment is usually quiet.
• Some travel required; may include air travel.
• The employee is frequently required to stand, walk and sit.