Senior OT/SCADA Network Architect for AI Data Centers

ON.energy; Houston (TX); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Professional development

Growth opportunities

Equal opportunity employer

Job summary

ON.energy is seeking a Senior OT/SCADA Network Architect to be the in-house design authority on OT networks for AI data center UPS projects. You will refine base templates, tailor them to each site, and produce comprehensive design packages.

You’ll ensure secure, scalable, multi-zone networks with strong IT/OT separation and robust data transfer to cloud environments. You will lead design reviews, support commissioning, and collaborate across IT, cloud, and engineering teams, ensuring

Qualifications

• 8+ years in network engineering and architecture, with 5+ years in OT/SCADA networks.
• Proven experience designing heavily segmented, multi-zone networks for large systems.
• Strong routing/switching skills: VLANs, L3, NAT, ACLs, redundancy.
• Site-to-site IPsec VPN design and troubleshooting; IT/OT separation understanding.

Responsibilities

• Develop designs from a base network template and tailor per site.
• Refine zoning model, IP/VLAN schemes, redundancy, and topology.
• Produce design packages: diagrams, schedules, configurations, and maps.
• Design DMZs, data-transfer patterns, and secure remote access.
• Guide vendor selection and support procurement with sizing justification.

Skills

OT networks design

SCADA networks

Firewall design

Industrial protocols

IT/OT separation

Education

Bachelor's degree in Electrical/Computer Engineering

Tools

Palo Alto

Fortinet

Cisco FTD/ASA

Nozomi/Claroty

Job description

ON.energy is seeking a Senior OT/SCADA Network Architect to be the in-house design authority on OT networks for AI data center UPS projects. You will refine base templates, tailor them to each site, and produce comprehensive design packages.

You’ll ensure secure, scalable, multi-zone networks with strong IT/OT separation and robust data transfer to cloud environments. You will lead design reviews, support commissioning, and collaborate across IT, cloud, and engineering teams, ensuring