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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Network Engineer - **Company:** NPK LLC - **Location:** Sunset, LA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** IEEE 802.1X, Link Aggregation (Ethernet), Apple IOS, Border Gateway Protocol, Cloud Computing, Dynamic Host Configuration Protocol, Network Address Translation, Domain Name System (DNS), Ethernet, Trunking, Health Information Management, Supervisory Control and Data Acquisition (SCADA), IP Addressing, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Troubleshooting, Network Architecture, Network Monitoring, Routing, Network Segmentation, Packet Analyzer, Cisco Nexus Switches, Open Shortest Path First (OSPF), TCP/IP, Virtual Local Area Networks, Wireless Networks, Scripting, Transport Layer Security, Computer Network Technologies, Firewalls (Computer Science), Web Filtering, Information Technology, Fortinet, CIS Benchmarks, Open Network Automation Platform, Cisco Switches, Cisco, SSL VPN - **Published:** September 23, 2026 - **Apply:** https://www.disabledperson.com/jobs/75399193-senior-network-engineer ## About the Role * Bachelor's degree in Information Technology, Computer Science, Network Engineering, or a related technical field preferred; equivalent combinations of education and relevant hands-on experience will be considered. * Experience with Cisco and Fortinet networking technologies, including routing, switching, wireless, WAN/SD-WAN connectivity, firewalls, VPNs, network segmentation, centralized management, and network troubleshooting. * Strong knowledge of core networking and security concepts, including TCP/IP, DNS, DHCP, NAT, QoS, routing and switching protocols, network monitoring/analysis, and security policy administration. * Familiarity with IT/OT and industrial networking environments, including OT/ICS security principles, industrial protocols, and network automation/scripting tools. * Experience supporting multi-site network environments, including cloud networking, centralized firewall management, and occasional travel between facilities. * Knowledge of industry security frameworks (NIST CSF, CIS Controls, IEC 62443); relevant certifications such as Fortinet, Cisco, CompTIA, or IEC 62443 are preferred. ## Description The Senior Network Engineer (OT/ICS) designs, deploys, secures, and supports network infrastructure across NPK's enterprise IT and industrial/OT environments in Carencro, Louisiana. This role bridges the IT/OT divide - configuring enterprise Cisco routing and switching, hardening plant-floor control networks, and building segmentation and security policy on Fortinet firewalls. The engineer partners closely with the Senior Manager of IT Services & Support, site operations, and controls/automation teams to maintain availability, enforce segmentation per IEC 62443 and NIST frameworks, and deliver projects aligned with the IT strategic roadmap., * 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 the Purdue model, VLANs, VRFs, firewalls, and industrial DMZs. * Configure and support routing and switching technologies, including OSPF, BGP, static routing, STP/RSTP, LACP, VLANs, trunking, switch stacking, QoS, and 802.1X. * Build and maintain highly available network architectures, including redundant uplinks, HA firewall pairs, and resilient topologies for 24/7 operations. * Plan, deploy, and support secure site-to-site and remote-access connectivity using IPsec and SSL VPN technologies. * Configure, manage, and optimize Fortinet solutions, including FortiGate NGFWs, security policies, NAT, VIPs, IPS, application control, web filtering, SSL inspection, FortiManager, FortiAnalyzer, FortiSwitch, and FortiAP. * Administer and support Cisco Catalyst, Nexus, IOS/IOS-XE, wireless, and industrial Ethernet platforms; troubleshoot Layer 1-3 connectivity issues using CLI tools, packet captures, and SPAN. * Support and secure OT/ICS environments, including PLCs, HMIs, RTUs, SCADA systems, and historians, while accounting for legacy protocols, deterministic traffic, and operational constraints. * Enforce least-privilege access controls and secure remote access solutions for internal users, vendors, and support personnel across IT and OT networks. * Participate in on-call support and maintenance activities; maintain network documentation, including topology diagrams, IP addressing schemes, firewall rule sets, and operational runbooks, and perform additional duties as assigned. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)