Our client is seeking a Senior OT Network Engineer to design, configure, and maintain the architecture and operations of OT networks and systems. This role includes addressing the latest network vulnerabilities and implementing mitigation strategies, managing network devices and applications, and strategic planning to maintain the desired security posture. The ideal candidate will have extensive experience managing operationally critical systems and networks, focusing on resilience and protection against emerging threats. Major Duties and Responsibilities
- Serve as a lead in responding to IT alerts and incidents, directly engaging with IT network monitoring providers.
- Implement, maintain, and manage OT network monitoring technologies.
- Maintain, support, and administer company-wide network infrastructure.
- Analyze system and network logs for issues and optimization opportunities.
- Oversee firewall installation, design, management, and maintenance.
- Perform firewall architecture, administration, and develop network security models following industry best practices and approved compliance standards (e.g., NERC).
- Analyze network health, identify deficiencies, and recommend performance enhancements.
- Troubleshoot complex network problems, capture and analyze network traffic, and resolve issues within the scope of authority.
- Support the network aspects of federal and customer inspections and audits.
- Manage the complete infrastructure engineering life cycle (Design, Implementation, Migration, and Support) for networks.
- Handle network virtualization, orchestration, and virtual load balancing.
- Contribute to risk management and disaster recovery strategies.
- Participate in backup and restoration activities.
- Manage the networking aspects of customer connections and secure data flow.
- Oversee network and systems architecture through performance monitoring, configuration, maintenance, and repair.
- Design and deploy functional networks (LAN, WLAN, WAN) for upgrades or new network builds
Knowledge, Skills, Abilities, and Other Personal Characteristics
- 5+ years of solid network experience, with OT experience being a plus.
- Strong knowledge of secure networking, including Purdue Enterprise Reference Architecture, IEC 62443 zones and conduits, micro-segmentation, and Zero Trust networking.
- Understanding of defense in depth and access control measures.
- Proficiency in IP routing, protocols, physical and logical port structures, OSI model, dynamic protocols, and subnetting.
- Familiarity with handling sensitive information and life-safety system criticality.
- Knowledge of the energy industry (oil, gas, electric, renewable) is advantageous.
- Excellent communication skills, particularly in conveying written technical information.
- Ability to quickly learn and apply new technical information.
- Strong organizational and time management skills, with a detail-oriented approach.
- Responsiveness to critical operating situations, including after-hours issues.
- Professional Certification (CCIE or equivalent) preferred.
This role offers the opportunity to work in a challenging and dynamic environment, contributing to the security and resilience of critical OT networks. If you have a passion for cybersecurity and network engineering, we encourage you to apply.