Senior Security Manager (Supply Chain Security)

Location: Crown Way, Cardiff, UK; 1 Sibbald Walk, Edinburgh EH8 8FT, UK

Salary: 58,531 - 76,136 per year

Employment: Flexible

Category: Security

Posted: 2026-08-12

Valid to: 2026-08-26

Employer: Companies House

Companies House plays a vital role in the UK economy by enabling transparency, supporting business confidence, and helping to tackle economic crime. As our digital services evolve, so does the complexity of our supply chain. We rely on a wide range of suppliers, partners, and third-party providers to deliver critical systems and services. We are looking for a Senior Security Manager – Supply Chain Security to lead how we manage and reduce risks across that ecosystem. This is a high-impact, strategic role where you will own and develop the organisation’s Supply Chain Risk Management (SCRM) capability. You will ensure that risks arising from third parties are identified, assessed, and managed proportionately across the full commercial lifecycle—from procurement and onboarding through to contract management and offboarding. A key part of the role is working closely with Commercial, Legal, and Service Teams to ensure that security is embedded into government procurement processes, with a strong understanding of how to apply security requirements through contractual mechanisms.

About Companies House

Companies House holds one of the largest sources of data in the UK, supporting transparency, economic research and public trust. As we continue to evolve through legislative reform, the need for well-governed, trusted and clearly defined data has never been more important.

Why choose Companies House?

• Flexible working with no core hours (between 6am and 8pm)
• 30 days annual leave, plus bank holidays
• Civil Service Pension scheme, with an average employer contribution of 28%
• A strong focus on career development and progression

You will be based at either our Cardiff or Edinburgh office where you will be expected to attend on a regular basis. Companies House cannot offer Visa sponsorship to candidates through this campaign. Security Check (SC) Clearance is an essential requirement (you must have been present in the UK for at least 3 out of the last 5 years).

The successful candidate will:

• Own the supply chain security risk domain for the organisation, setting direction and standards for third-party risk management
• Define and maintain the Supply Chain Risk Management (SCRM) framework, including risk classification, assurance models, and escalation thresholds
• Embed security and cyber security requirements into procurement, tenders, and contracts in collaboration with Commercial and Legal teams
• Lead third-party assurance activities, including onboarding assessments, audits, and ongoing compliance monitoring
• Apply and assure security requirements using government-aligned procurement approaches, including the use of Modular Security Schedules (MSS) and other contractual security artefacts
• Provide expert input into procurement strategies, ensuring proportionate security controls are defined based on risk, service criticality, and data sensitivity
• Manage aggregated and systemic supplier risk, ensuring visibility of dependencies and critical exposures
• Provide clear, authoritative reporting to senior stakeholders on supply chain risk posture and trends
• Lead and coordinate the response to third-party security incidents
• Drive continuous improvement and set the maturity roadmap for supply chain security capability

The Security Division at Companies House is responsible for protecting our people, services, data, technology, partners and reputation. Our multidisciplinary team covers cyber security, physical security, personnel security, supply chain security, resilience, business continuity, disaster recovery, data security, incident management and fraud risk management. We are a collaborative, hybrid-working team operating across Cardiff, Edinburgh and Belfast.

We’re seeking individuals who can demonstrate:

• Strong knowledge and experience of security governance, risk, and compliance (GRC)
• A proven track record in supply chain / third-party risk management
• Ability to apply and interpret MSS or equivalent contractual security controls
• Demonstrable capability to embed security requirements into contracts, tenders and supplier agreements
• Experience building and maintaining effective working relationships across government procurement processes, using collaboration to achieve shared objectives and successful outcomes
• Experience influencing and constructively challenging stakeholders across Commercial and Delivery functions to drive positive outcomes and informed decision making
• Experience managing complex risk across multiple suppliers or services, taking timely action to ensure successful delivery and risk mitigation
• Strong analytical and problem-solving skills, with the ability to assess complex information, evaluate risks and make evidence-based decisions

We'll assess you against these behaviours during the selection process:

• Making Effective Decisions
• Working Together
• Delivering at Pace
• Communicating and Influencing

Alongside your salary of 58,531, Companies House contributes 16,956 towards you being a member of the Civil Service Defined Benefit Pension scheme. We believe that our success is driven by the well-being and satisfaction of our team members at all levels of the organisation. At Companies House we’re committed to providing a comprehensive benefits package that goes beyond the ordinary, ensuring your career journey with us is not only fulfilling, but also rewarding.

We celebrate diversity... As an equal opportunity employer, we celebrate diversity, being committed to ensuring we’re representative of the citizens we serve and creating an inclusive environment. Everyone in Companies House brings something different, and so will you. To fulfil our commitment to recruiting and attracting diverse talent we welcome applications from underrepresented groups. We also welcome applications from Welsh speakers. We are proud to be a disability confident leader.

Our recruitment process is fully inclusive and we can make adjustments as needed through our process. These could include having an interview buddy, extra time at interviews/assessments and receiving interview questions in advance, to name a few.

Where will you be working?

You will be based at either our Cardiff or Edinburgh office where you will be expected to attend at least one day per week, this could increase to up to 5 days a week during busier times and in line with the needs of the business. We are currently using a hybrid approach to the way we work which provides opportunities for you to be adaptable in the way you work so that you can achieve a healthy balance between your work and home life.

Things you need to know:

• Artificial intelligence can be a useful tool to support your application, however, all examples and statements provided must be truthful, factually accurate and taken directly from your own experience.
• Successful candidates must pass a Baseline Personnel Security Standard (BPSS) check before they can be appointed.
• Successful candidates must also meet the security requirements for Security Check (SC) before they can be appointed.
• Companies House cannot offer Visa sponsorship to candidates through this campaign.

Feedback will only be provided if you attend an interview or assessment.