Security by Design Consultant - SC Cleared
other jobs Marks Sattin
Added before 5 Days
- England,South West,Somerset
- Full Time, Contract
- £88 per hour
Job Description:
Full job description
Security by Design ConsultantLocation: Yeovil, Somerset, 40% onsite
Contract: 60 working days delivered between November 2026 and 31 March 2027
Clearance: Active UK MOD SC clearance required
We are seeking an experienced Security by Design Consultant to support a major defence aviation programme preparing for the commissioning of an Integrated Logistics Support service.
This is a deliverables-focused engagement requiring approximately 60 working days across the contract period, rather than a full-time assignment. The successful consultant will take ownership of producing a detailed Security Management Plan, identifying critical security gaps and defining a sequenced remediation plan.
Key Responsibilities
*Produce a comprehensive Security Management Plan covering the programme’s systems, services, assets and security perimeter.
*Identify critical and high-priority security gaps affecting service delivery.
*Develop a high-level remediation plan covering ownership, timescales, cost and complexity.
*Define system dependencies, external connections and codes of connection.
*Support security governance and risk management across the service lifecycle.
*Build relationships with programme, customer and security stakeholders.
*Transfer security knowledge across the wider programme team.
Essential Experience*Minimum seven years’ experience delivering cyber security outcomes within a UK defence environment.
*Proven experience producing detailed Security Management Plans.
*Strong knowledge of MOD accreditation, assurance and Secure by Design, including ISN 2023/09.
*Experience applying Defence Standard 05-138 Issue 4.
*Knowledge of DEFCON 658, ideally including the latest update.
*Working knowledge of NIST SP 800-30, SP 800-37 and SP 800-53.
*Experience of security governance and risk management within a defence aviation or defence supplier environment.
*Technical understanding of enterprise IT, application security and system security design.
*Ability to operate independently and deliver against a defined Statement of Work.
*Active UK MOD SC clearance.
QualificationsA degree or master’s degree in cyber security, systems engineering, software engineering or equivalent professional experience is preferred.
Candidates should also hold at least one recognised cyber security qualification, such as:
*CISSP
*CISM
*CASP+ / SecurityX
*Chartered Cyber Security Professional, or equivalent
The role requires approximately 40% attendance in Yeovil, alongside at least weekly programme stand-ups.
To discuss the assignment confidentially, please apply with an up-to-date CV and details of your current SC clearance status.
We are happy to provide application and/or accessibility support, please contact your Marks Sattin or Grafton consultant directly to discuss your needs. We’re committed to protecting the privacy of all our candidates and clients, please visit and for our privacy policy.
Security by Design ConsultantLocation: Yeovil, Somerset, 40% onsite
Contract: 60 working days delivered between November 2026 and 31 March 2027
Clearance: Active UK MOD SC clearance required
We are seeking an experienced Security by Design Consultant to support a major defence aviation programme preparing for the commissioning of an Integrated Logistics Support service.
This is a deliverables-focused engagement requiring approximately 60 working days across the contract period, rather than a full-time assignment. The successful consultant will take ownership of producing a detailed Security Management Plan, identifying critical security gaps and defining a sequenced remediation plan.
Key Responsibilities
*Produce a comprehensive Security Management Plan covering the programme’s systems, services, assets and security perimeter.
*Identify critical and high-priority security gaps affecting service delivery.
*Develop a high-level remediation plan covering ownership, timescales, cost and complexity.
*Define system dependencies, external connections and codes of connection.
*Support security governance and risk management across the service lifecycle.
*Build relationships with programme, customer and security stakeholders.
*Transfer security knowledge across the wider programme team.
Essential Experience*Minimum seven years’ experience delivering cyber security outcomes within a UK defence environment.
*Proven experience producing detailed Security Management Plans.
*Strong knowledge of MOD accreditation, assurance and Secure by Design, including ISN 2023/09.
*Experience applying Defence Standard 05-138 Issue 4.
*Knowledge of DEFCON 658, ideally including the latest update.
*Working knowledge of NIST SP 800-30, SP 800-37 and SP 800-53.
*Experience of security governance and risk management within a defence aviation or defence supplier environment.
*Technical understanding of enterprise IT, application security and system security design.
*Ability to operate independently and deliver against a defined Statement of Work.
*Active UK MOD SC clearance.
QualificationsA degree or master’s degree in cyber security, systems engineering, software engineering or equivalent professional experience is preferred.
Candidates should also hold at least one recognised cyber security qualification, such as:
*CISSP
*CISM
*CASP+ / SecurityX
*Chartered Cyber Security Professional, or equivalent
The role requires approximately 40% attendance in Yeovil, alongside at least weekly programme stand-ups.
To discuss the assignment confidentially, please apply with an up-to-date CV and details of your current SC clearance status.
We are happy to provide application and/or accessibility support, please contact your Marks Sattin or Grafton consultant directly to discuss your needs. We’re committed to protecting the privacy of all our candidates and clients, please visit and for our privacy policy.
Job number 4311615
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