Salary: £100,000 - 100,000 per year
Requirements:
- 10+ years experience in cyber security, with substantial specialist experience in OT/ICS.
- Extensive hands-on OT/ICS security assessment experience in operational environments.
- Strong understanding of OT/ICS architectures, industrial networks and protocols.
- Working knowledge of IEC 62443 and relevant OT security standards.
- Experience leading technical teams and developing senior consultants.
- Proven involvement in sales, bids, proposals and commercial engagements.
- Experience developing cyber security propositions, services or practice areas.
- Ability to engage confidently with engineers, security professionals, CISOs and executive stakeholders.
- Commercial understanding covering pricing, utilisation, profitability, pipeline and delivery.
- Recognised certification such as GICSP, GRID, IEC 62443 or equivalent.
- Ability to obtain and maintain SC clearance.
- Full UK right to work and unrestricted ability to work across private, enterprise and government clients.
- Desirable: engineering, process control or industrial automation background.
- Desirable: OT SOC, detection and monitoring experience.
- Desirable: sector experience across energy, utilities, maritime, manufacturing or CNI.
- Desirable: experience building a new OT/ICS service line from an early stage.
- Desirable: experience driving cross-sell from wider cyber services, including ISO 27001, cyber assurance or assessment services.
- Desirable: experience with SCADA, DCS, PLC and industrial protocols such as Modbus, DNP3, OPC, PROFINET or EtherNet/IP.
Responsibilities:
- Own and develop the OT/ICS Cyber Assurance proposition, methodology and safety-first testing standards.
- Build and grow a team of consultants and pod leads, setting technical direction, career pathways and certification plans.
- Develop new OT/ICS products and services, identifying opportunities for growth and cross-sell.
- Lead major OT/ICS security programmes across manufacturing, CNI, energy, utilities, maritime and other operational environments.
- Support and lead bids, proposals, pricing and commercial strategy.
- Develop the labs, tooling and reference environments required for safe OT/ICS testing.
- Maintain hands-on involvement in client engagements and retain strong technical credibility.
Technologies:
- Ethernet
- Support
- PLC
- Profinet
- Security
- Hardware
- Network
More:
We are an established cyber security organisation with a strong, high-performing capability, significant customer reach and the resources to scale quickly. This UK remote opportunity offers genuine ownership of an OT/ICS Cyber Assurance practice, with the chance to shape its strategy, technical direction and commercial growth across manufacturing, CNI, enterprise and government customers. This is a senior role for someone who enjoys building businesses, combining consulting leadership with commercial responsibility and the autonomy to develop a substantial OT/ICS proposition.
last updated 40 week of 2026
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OT / ICS Cyber Assurance Lead - UK Remote in Milton Keynes employer: Circle Group
As a System Optimisation Lead with our government client, you will thrive in a dynamic hybrid work environment located in either London or Leeds. The company fosters a supportive culture that prioritises employee growth through training and development opportunities, while also offering competitive daily rates and the chance to make a meaningful impact on public sector transformation initiatives. Join us to be part of a team that values collaboration, innovation, and inclusivity, ensuring that your contributions are recognised and rewarded.
