Cyber Security Consultant

Cyber Security Consultant | Reading, 1-2 days on site | £550-£600p/day, IIR35 | 2-year Contract | DV Clearance

Our client is seeking highly skilled Security Practitioner (SFIA level 4/5) to support a long-term programme in Berkshire. The role requires deep expertise in MoD Security by Design (SbD) and Operational Technology (OT) security, specifically aligned to ISO 62443 standards.

• Apply MoD SbD principles across system and solution design.

• Carry out risk assessments and threat modelling to embed security throughout project lifecycles.

• Provide expertise in OT environments (industrial control systems, SCADA, PLCs, etc.), with specific alignment to ISO 62443.

• Develop and maintain security documentation, including risk registers and assurance evidence.

• Work closely with technical teams, architects, and programme stakeholders to ensure security requirements are met.

• Support audits, accreditation, and compliance activities within a Defence and CNI context.

• Act as a trusted advisor, ensuring security, resilience, and compliance remain central to all project activities.

• Proven track record as a Security Practitioner at SFIA level 4/5.

• Current, practical experience with MoD SbD and associated risk management frameworks.

• Strong knowledge of OT security and ISO 62443.

• Demonstrated ability to work in Defence, Government, or Critical National Infrastructure environments.

• Familiarity with security assurance, accreditation, and governance processes.

• Excellent communication and stakeholder management skills.

• Must hold current DV clearance .

If you are an experienced Security Practitioner with expertise in MoD SbD and OT/ISO 62443, and you're seeking a long-term contract assignment, send through your CV and I shall give you a call.

Cyber Security Consultant | Reading, 1-2 days on site | £550-£600p/day, IIR35 | 2-year Contract | DV Clearance

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