Senior IT/OT Network Engineer: Industrial Security & WAN

NPK International Inc.; Carencro, Northern (LA, KY); Hybrid; USD 90,000 - 120,000; Full time

Job summary

NPK International Inc. in Carencro, LA, is seeking a Senior Network Engineer (OT/ICS) to design, deploy, and secure network infrastructure across IT and industrial environments.

You will configure Cisco routing/switching, fortify plant-floor networks, and implement segmentation per IEC 62443 and NIST frameworks. The role requires building secure connectivity, supporting OT/ICS devices, and collaborating with IT and operations teams to ensure high availability and security across multiple sites.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Network Engineering, or related field (or equivalent hands-on experience).
• Experience with Cisco and Fortinet networking technologies (routing, switching, wireless, VPNs, segmentation).
• Strong knowledge of core networking and security concepts (TCP/IP, DNS, NAT, QoS; routing protocols).
• Familiarity with IT/OT and industrial networking environments and OT security principles.
• Experience supporting multi-site network environments and cloud networking.
• Knowledge of industry security frameworks (NIST CSF, CIS Controls, IEC 62443); relevant certifications preferred.

Responsibilities

• Design, implement, and maintain LAN, WAN, and wireless infrastructure across corporate, plant, and cloud-connected environments.
• Architect and enforce secure IT/OT network segmentation using Purdue model, VLANs, VRFs, and firewalls.
• Configure and support routing and switching technologies (OSPF, BGP, STP/RSTP, VLANs, QoS, 802.1X).
• Build highly available network architectures with redundant uplinks and HA firewall pairs.
• Plan and support site-to-site and remote-access connectivity (IPsec, SSL VPN).
• Manage Fortinet solutions (FortiGate, policies, NAT, IPS, SSL inspection) and Cisco/Nexus devices; maintain runbooks and topology docs.

Skills

Cisco networking

Fortinet security

Networking fundamentals

IT/OT knowledge

Multi-site networks

Security frameworks

Education

Bachelor's degree

Tools

FortiGate NGFW

Cisco Catalyst/Nexus

Job description

NPK International Inc. in Carencro, LA, is seeking a Senior Network Engineer (OT/ICS) to design, deploy, and secure network infrastructure across IT and industrial environments.

You will configure Cisco routing/switching, fortify plant-floor networks, and implement segmentation per IEC 62443 and NIST frameworks. The role requires building secure connectivity, supporting OT/ICS devices, and collaborating with IT and operations teams to ensure high availability and security across multiple sites.