Operational Technology (OT) Architect

Tria; Greater London; On-site; GBP 120,000 - 157,000; Full time

Benefits offered by this job

IR35 Inside IR35

Job summary

Tria is seeking an experienced OT Architect for a large-scale Operational Technology and industrial network transformation project in London. The role requires designing secure OT environments across multiple industrial sectors and coordinating with engineering, security and operations teams onsite three days per week.

You will define architecture strategies, standards and roadmaps, ensuring regulatory alignment and risk mitigation in highly regulated settings.

Qualifications

• Proven experience as an OT Architect, ICS Architect, Industrial Network Architect, or similar role.
• Strong knowledge of OT, ICS, and SCADA environments.
• Experience designing secure industrial networks and segmented architectures.
• Knowledge of OT cyber security frameworks: IEC 62443, NIST, NIS2, ISO 27001.
• Experience in highly regulated environments.

Responsibilities

• Define and deliver OT architecture strategies, standards, and roadmaps.
• Collaborate with engineering, infrastructure, cyber security and operations teams.
• Ensure alignment with business goals and regulatory requirements.

Skills

OT Architecture

ICS Architecture

Industrial Network Architecture

SCADA

DCS environments

Industrial Ethernet

Network segmentation

Firewalls

Zero Trust

Azure

AWS

GICSP

CISSP

TOGAF

ISA/IEC 62443 certifications

Azure Security certifications

Tools

Modbus

DNP3

OPC-UA

Profinet

EtherNet/IP

Job description

OT Architect (Operational Technology Architect)

Contract 750 per day Inside IR35

London 3 Days Onsite per Week

An experienced OT Architect is required for a leading organisation embarking on a large-scale Operational Technology and industrial network transformation programme. This is an excellent opportunity for an experienced OT Architect to play a key role in designing and securing critical operational environments across manufacturing, utilities, transport, energy, or other industrial sectors.

Working closely with engineering, infrastructure, cyber security, and operational teams, you will define and deliver OT architecture strategies, standards, and roadmaps while ensuring alignment with both business and regulatory requirements.

Essential Experience

• Proven experience as an OT Architect,ICS Architect, Industrial Network Architect, or similar role.
• Strong knowledge of Operational Technology (OT), Industrial Control Systems (ICS), and SCADA environments.
• Experience designing secure industrial networks and segmented architectures.
• Strong understanding of:
  • SCADA
  • PLCs
  • DCS environments
  • Industrial Ethernet
  • Network segmentation
  • Firewalls
  • Remote access solutions
  • Zero Trust principles
• Knowledge of industrial protocols such as:
  • Modbus
  • DNP3
  • OPC-UA
  • Profinet
  • EtherNet/IP
• Experience with OT cyber security frameworks and standard including:
  • IEC 62443
  • NIST
  • NIS2
  • ISO 27001
• Experience working within highly regulated environments.

Desirable Skills

• Cloud connectivity within OT environments (Azure or AWS).
• Industrial IoT (IIoT) technologies.
• Experience with OT monitoring and threat detection platforms.
• Relevant certifications such as:
  • GICSP
  • CISSP
  • TOGAF
  • ISA/IEC 62443 certifications
  • Azure Security certifications

• IR35 Status: Inside IR35

If you are an experienced OT Architect with a strong background in industrial networks, cyber security, and critical infrastructure environments, we'd be keen to hear from you