Operational Technology (OT) Cyber Security Systems Engineer

Millbank
Chesterfield, Derbyshire, United Kingdom
Today
£40,000 – £70,000 pa

Salary

£40,000 – £70,000 pa

Job Type
Permanent
Work Pattern
Full-time
Work Location
On-site
Seniority
Senior
Education
Degree
Posted
21 Apr 2026 (Today)

Are you a proven OT Cyber Security Systems Engineer with extensive experience in designing, developing, and testing secure industrial control system networks?

Do you possess expert knowledge in implementing cyber security solutions such as network segmentation, intrusion detection, and system hardening within ICS environments?

If you're ready to take on a challenging project where your skills will directly impact operational safety, system availability, and industry compliance, read on and apply now to be part of a forward-thinking team committed to innovation and excellence. The Opportunity This organisation drives innovation within industrial automation, fostering a culture that values collaboration, technical excellence, and continuous improvement. Known for its distinct approach to technology integration and commitment to sustainable solutions, it offers a dynamic environment where your expertise can thrive and make a tangible impact. Your duties and responsibilities will be

You will be responsible for the technical delivery of cyber security controls and network management systems in an industrial environment. Your daily tasks will Designing, deploying, testing, and maintaining secure OT networks for PLC and SCADA systems

Producing comprehensive technical documentation, and supporting project lifecycle activities such as vulnerability management and system integration.

Work closely with project teams to ensure project milestones are met on time and within scope.You will have the following qualifications & experience

Proven experience in the design, implementation, and testing of OT/ICS networks and cyber security solutions.

Extensive knowledge of security controls such as system hardening, malware protection, IDS, and network monitoring.

Hands-on experience with SolarWinds, Trellix ENS, VMWare ESXi, and NAS systems.

Strong troubleshooting, documentation, and stakeholder communication skills.

Experience working within a Quality Management System (QMS).It's great if you also have the following

Familiarity with network security deployment, segmentation, and boundary protection technologies.

Experience with Cisco and Rockwell Automation industrial network infrastructure.

Knowledge of cyber security standards such as IEC 62443.

Working in or for critical infrastructure, system integrators, or essential services organisations.Get in touch now If you're seeking a new opportunity and think you have the relevant skills and experience our client is looking for, then this could be the opportunity for you, so apply now or contact Emma Chambers via LinkedIn.

Millbank Holdings Ltd is an equal opportunities employer committed to creating an inclusive and diverse workforce. We welcome applications from all suitably qualified individuals, regardless of background, and encourage candidates from underrepresented groups to apply.

We are proud to be a member of the Disability Confident Scheme, and we are committed to ensuring an accessible and supportive recruitment process for everyone. If you require any adjustments at any stage, please let us know and we’ll do our best to accommodate.

Millbank operates as both an Employment Agency and an Employment Business

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