OT Network Architect, EMEA | Industrial Controls & SCADA

Nscale; Ireland; Remote; EUR 90,000 - 120,000; Full time

Job summary

Nscale is seeking an OT Network Subject Matter Expert to design, deploy, validate, and operate OT networks across Nscale data centers. You will own the industrial networking layer connecting PLCs, field devices, and SCADA, ensuring resiliency, cybersecurity, determinism, and maintainability.

You will collaborate with Controls Engineers, SCADA SMEs, IT, and system integrators to ensure networks are deployed as mission-critical infrastructure across Europe.

Qualifications

• Bachelor's degree in engineering, computer science, information technology, or equivalent practical experience.
• 5+ years of experience supporting industrial or OT networks in manufacturing, industrial, utilities, or mission-critical environments.
• Strong understanding of EtherNet/IP, VLANs, routing and switching fundamentals, and redundancy design.
• Experience with PLC and SCADA environments and OT network impact on performance and availability.
• Familiarity with OT cybersecurity practices including segmentation and secure remote support.
• Experience in field testing, commissioning, and troubleshooting of industrial network infrastructure.

Responsibilities

• Design and review OT network architectures (EtherNet/IP, VLAN segmentation, redundancy).
• Validate designs for resilience, determinism, maintainability, and no single points of failure.
• Review vendor network designs, configurations, and IP plans for compliance with OT design standards.
• Coordinate with cybersecurity teams on segmentation, access controls, and remote access policies.
• Participate in FAT, SAT, commissioning, and failover testing of OT networks.
• Troubleshoot OT network performance and configuration during deployment and operations.
• Work with SCADA, controls, and IT to ensure clean interfaces between OT networks and monitoring platforms.
• Maintain network documentation including topologies, VLAN/IP plans, firewall rules, and turnover records.

Skills

Industrial networking concepts

EtherNet/IP

VLANs

Redundancy design

OT cybersecurity practices

PLC/SCADA experience

Troubleshooting

Education

Bachelor's degree in Engineering/CS/IT

Tools

Cisco Industrial

Stratix

Hirschmann

CCNA or industrial cert

Job description

Nscale is seeking an OT Network Subject Matter Expert to design, deploy, validate, and operate OT networks across Nscale data centers. You will own the industrial networking layer connecting PLCs, field devices, and SCADA, ensuring resiliency, cybersecurity, determinism, and maintainability.

You will collaborate with Controls Engineers, SCADA SMEs, IT, and system integrators to ensure networks are deployed as mission-critical infrastructure across Europe.