Senior OT/SCADA Network Architect for AI Data Centers

ON.energy; Houston (TX); On-site; USD 140,000 - 200,000; Full time

Benefits offered by this job

Annual bonus eligibility

Medical insurance

401(k) with match

Paid time off

Job summary

ON.energy is hiring a Senior OT/SCADA Network Architect to lead in-house OT network designs for AI data center UPS projects. You’ll refine a standard base template, tailor it per site, and ensure secure, scalable architectures across our portfolio.

You will partner with engineering managers, deliver design packages, and support commissioning with robust documentation and validated test plans. Occasional travel may be required.

Qualifications

• 8+ years in network engineering and architecture, including OT/SCADA networks.
• Experience designing heavily segmented, multi-zone networks for large systems.
• Strong routing and switching: VLANs, trunking, L3 routing, NAT, ACLs, spanning-tree.

Responsibilities

• Architect the OT network and refine base design templates for site adaptions.
• Produce design packages including diagrams, IP/VLAN schedules, and configs.
• Design secure site-to-site VPNs and DMZs with proper IT/OT separation.
• Support reviews, commissioning, and handoff with clear documentation.

Skills

OT networking

SCADA networks

L3 routing

IPsec VPN

IT/OT separation

Industrial protocols

Firewall design

IEC 62443

Education

CCNP/CCIE / ISA 62443 / CISSP

Tools

Palo Alto

Fortinet

Cisco FTD/ASA

Nozomi

Claroty

Dragos

Zabbix

Job description

ON.energy is hiring a Senior OT/SCADA Network Architect to lead in-house OT network designs for AI data center UPS projects. You’ll refine a standard base template, tailor it per site, and ensure secure, scalable architectures across our portfolio.

You will partner with engineering managers, deliver design packages, and support commissioning with robust documentation and validated test plans. Occasional travel may be required.