34590 - Critical National Infrastructure Security Manager
| Posting date: | 11 May 2026 |
|---|---|
| Salary: | £68,820 per year |
| Hours: | Full time |
| Closing date: | 24 May 2026 |
| Location: | UK |
| Remote working: | Hybrid - work remotely up to 5 days per week |
| Company: | Environment Agency |
| Job type: | Permanent |
| Job reference: | 34590 |
Summary
CNIS (Critical National Infrastructure and Systems) Security Manager
Are you an inspirational and collaborative leader with technical security knowledge? Are you keen to use your skills to protect the organisation, our assets, and our employees?
As the CNIS Security Manager you will lead a small team to who will provide strategic leadership, consistent standards, and expert capability across physical, personnel, cyber, and supply chain security for CNIS. They will ensure compliance with national security obligations, resilience, and manage risk.
You will own the CNIS strategy, policy, and assurance for CNIS assets, provide authoritative leadership, be a key point of contact for CNIS with external agencies, and internal governance.
In this role you will:
Set CNIS policy and standards, working with internal teams to align with asset management standards, issue governance and assurance cycles
Maintain strategic risk view across Areas, and Chair a CNIS Risk & Assurance Board
Act as primary liaison with NPSA, NCSC, CTSA and relevant government departments
Approve threat response postures and prioritised security improvement plans
Sponsor role-based vetting standards, work with key stakeholders on complex personnel/protective security decisions
Act as escalation point for commercial/security conflicts and derogations
Work closely with the Corporate Security Team to provide visibility and assurance of CNIS Security risks to the Security Risk Owner.
The team
You will lead a small advisory team within Corporate Management, Assurance and Security, who are focused on protecting the organisation and strengthening its resilience. Acting as a centre of excellence, you will provide consistent CNIS standards and assurance. The welcoming team delivers varied work, and there is an expectation you will support wider team activity, giving you broad exposure across key organisational priorities, developing leadership capability and collaborative relationships with senior stakeholders across the organisation.
Experience/skills required
7 or more years in security risk/critical infrastructure, with an understanding of physical, personnel, cyber/operational technology, and supply chain security
proven leadership skills to achieve outcomes, promote partnership, influence, and inspire others
building effective partnerships to jointly manage risks, and with internal and external organisations,
able to work with senior people, manage multiple priorities, and competing demands on yourself and your team
experience of inspiring culture change, stakeholder management, clear communicator leading communications and engagement, and implementing business change solutions is beneficial
There is a conditional requirement to achieve Developed Vetting (DV) level of National Security Vetting
Are you an inspirational and collaborative leader with technical security knowledge? Are you keen to use your skills to protect the organisation, our assets, and our employees?
As the CNIS Security Manager you will lead a small team to who will provide strategic leadership, consistent standards, and expert capability across physical, personnel, cyber, and supply chain security for CNIS. They will ensure compliance with national security obligations, resilience, and manage risk.
You will own the CNIS strategy, policy, and assurance for CNIS assets, provide authoritative leadership, be a key point of contact for CNIS with external agencies, and internal governance.
In this role you will:
Set CNIS policy and standards, working with internal teams to align with asset management standards, issue governance and assurance cycles
Maintain strategic risk view across Areas, and Chair a CNIS Risk & Assurance Board
Act as primary liaison with NPSA, NCSC, CTSA and relevant government departments
Approve threat response postures and prioritised security improvement plans
Sponsor role-based vetting standards, work with key stakeholders on complex personnel/protective security decisions
Act as escalation point for commercial/security conflicts and derogations
Work closely with the Corporate Security Team to provide visibility and assurance of CNIS Security risks to the Security Risk Owner.
The team
You will lead a small advisory team within Corporate Management, Assurance and Security, who are focused on protecting the organisation and strengthening its resilience. Acting as a centre of excellence, you will provide consistent CNIS standards and assurance. The welcoming team delivers varied work, and there is an expectation you will support wider team activity, giving you broad exposure across key organisational priorities, developing leadership capability and collaborative relationships with senior stakeholders across the organisation.
Experience/skills required
7 or more years in security risk/critical infrastructure, with an understanding of physical, personnel, cyber/operational technology, and supply chain security
proven leadership skills to achieve outcomes, promote partnership, influence, and inspire others
building effective partnerships to jointly manage risks, and with internal and external organisations,
able to work with senior people, manage multiple priorities, and competing demands on yourself and your team
experience of inspiring culture change, stakeholder management, clear communicator leading communications and engagement, and implementing business change solutions is beneficial
There is a conditional requirement to achieve Developed Vetting (DV) level of National Security Vetting