Operational Technology (OT) Engineers

ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.

Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today.

Join us and start building tomorrow’s world today!

As an Operational Technology (OT) Engineer , you will join our teams in Romney Marsh, UK to support our activities within the Nuclear sector.

You will support the maintenance, configuration control, and cyber resilience of plant OT systems, working closely with engineering and operations teams to ensure systems remain secure, compliant, and reliable.

You will gain hands-on experience in industrial environments , developing expertise in OT systems, asset management, and cyber security practices within a highly regulated, safety-critical industry.

Responsibilities

Location: Romney Marsh, UK; On Site: 5 days; Clearance: BPSS; Experience Level: 2- 5 YOE; Provide technical support for OT systems and cyber security management across the full lifecycle (development to in-service operation); Support configuration control and system management , including tools, data, and repositories; Ensure OT security, regulatory compliance, and industrial safety are embedded in all activities; Act as a point of contact for site OT security matters , supporting:; Plant Computer Systems Security (PCSS) practitioners; Cyber security (Blue Team) activities; Maintain and support key OT documentation and systems, including:; Plant network diagrams; OT asset registers; Security case documentation; Security operating procedures; Cyber incident response processes; Contribute to continuous improvement by sharing feedback and supporting team development

Requirements

Understanding of the lifecycle of OT / I&C systems , particularly:; Configuration control; Security considerations; In-service management; Strong analytical mindset with attention to detail; A degree in Software Engineering, Cybersecurity or a closely related technical discipline, or equivalent military experience; Eligible for (or holding) UK security clearance

Nice to have

Up to 2 years’ experience (or relevant placements) in Operational Technology (OT) systems; Industrial control / I&C systems; Configuration management or cyber security; System reliability and fault tolerance; Proof testing and maintenance practices; Through-life asset management and obsolescence; IEC 62443; NIST Cyber Security Framework; IEC 61508; Interest in OT cyber security, industrial networks, and infrastructure systems

Benefits

A personalised career path and a rewarding management style; A huge diversity of engineering projects and industries; Private Medical Insurance; Cycle & Tech Scheme; Employee assistance programme; Life insurance & Pension Scheme; Social atmosphere, regular gatherings & team buildings; Flexible way of working (role dependent)