Sr. IT/OT Network Architect - SD-WAN, micro-segmentation
Role details
Job location
Tech stack
Requirements
Certification in related fields (CCNA, CCNP) required. Security and Cisco Certified Internetwork Expert (CCIE), and experience in Extreme network switches is a plus.
10+ years of experience in network design and architecture, preferably in OT environments.
Experience with industrial protocols (e.g., Modbus, DNP3, OPC, Ethernet/IP).
Familiarity with IT/OT convergence principles.
Minimum Technical Expertise:
- Knowledge of design, configuration, installation, testing, and maintenance of local and wide area computer wired and wireless networks (Cisco Systems preferred).
- Knowledge of computer network characteristics, network operating system software, and network components
- Troubleshooting skills and the ability to diagnose/resolve network system problems.
- Ability to interpret and apply complex technical manuals and reference materials.
- Ability to assist with developing network security and related procedures; and performing network management activities.
Prefer: Strong understanding of networking concepts, including routing, switching, and firewall configurations.
Prefer: Proficiency in network monitoring and management tools.
Prefer: Knowledge of cybersecurity best practices for OT networks.
Prefer: Experience with industrial control systems (ICS) and SCADA systems.
Architecture & Design
- Design and implement a segmented OT network architecture transitioning from flat Layer 2 networks to SD-WAN-enabled, zone-based architectures.
- Define network segmentation strategy (ISA/IEC 62443 zones and conduits model) to isolate critical OT assets and control east-west traffic.
- Engineer ring and/or resilient topologies across substations and core OT sites to ensure deterministic communication and fault tolerance.