Senior OT Cyber Engineer

Paradigm Tech; Manchester; Hybrid; GBP 75,000 - 90,000; Full time

Job summary

Paradigm Tech is seeking a Senior OT Cyber Security Engineer to protect critical OT/ICS environments. You will lead security engagements, design secure architectures, and drive risk assessments across complex industrial settings.

The role emphasizes practical OT security expertise, familiarity with industrial protocols, and delivery of secure solutions for critical infrastructure projects.

Qualifications

• Experience in OT/ICS cybersecurity across industrial environments.
• Knowledge of IEC 62443, NIST, or NCSC guidance.
• Experience with OT network security (firewalls, segmentation, monitoring).
• Ability to communicate technical concepts to clients.
• Background in critical infrastructure, energy, manufacturing, or similar sectors.

Responsibilities

• Lead OT/ICS security assessments across industrial environments.
• Design and implement secure network architectures for OT systems.
• Conduct risk assessments, threat modelling, and vulnerability analysis.
• Support incident response and remediation within OT environments.
• Work closely with clients to define and improve their OT security posture.
• Contribute to best practices, standards, and security frameworks.

Skills

OT/ICS security

Threat modelling

Risk assessments

Network security

Industrial protocols

Tools

Modbus

DNP3

OPC

Job description

Senior OT Cyber Security Enigneer | Operational Technology | SCADA | PLC | HMI | EC&I | Critical Infrastructure | OT Security | £75,000 - 2 days a week onsite

We are looking for a Senior OT Cyber Security Engineer to join a growing cybersecurity team focused on securing Operational Technology (OT) and Industrial Control Systems (ICS) environments.

This is a high-impact role where you'll work on protecting critical infrastructure, designing secure OT architectures, and leading security engagements across complex industrial environments blending your skills in Industrial Controls & OT Security.

What you'll be doing

• Lead OT/ICS security assessments across industrial environments
• Design and implement secure network architectures for OT systems
• Conduct risk assessments, threat modelling, and vulnerability analysis
• Support incident response and remediation within OT environments
• Work closely with clients to define and improve their OT security posture
• Contribute to best practices, standards, and security frameworks

What we're looking for

• Strong experience in OT / ICS cybersecurity environments
• Solid understanding of industrial protocols (e.g. Modbus, DNP3, OPC)
• Strong Industrial controls experience - SCADA, PLC, HMI
• Experience with network security (firewalls, segmentation, monitoring)
• Familiarity with frameworks such as IEC 62443, NIST, or NCSC guidance
• Ability to work directly with clients and communicate technical concepts clearly
• Background in critical infrastructure, energy, manufacturing, or similar sectors

You’ll play a key role in securing critical infrastructure, working on meaningful projects with real-world impact; all within a flexible, fully remote environment.