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About the Role

As our Site Security Controller, you will play a pivotal role in protecting Northrop Grumman UK’s people, facilities, information and reputation across our Defence Operating Unit in New Malden and our UK Headquarters in Central London. Operating at the heart of our security function, you will lead the management and maintenance of security policies, procedures and controls that underpin our accredited government-sponsored facilities. Your work will directly support the growth and success of Northrop Grumman UK while enabling our teams to deliver critical solutions to customers across the defence sector.

Responsibilities

Lead the security governance and compliance activities for our New Malden and London sites, ensuring continued certification and accreditation of operational facilities.
Build strong relationships with Defence Equipment & Support (DE&S) Principal Security Advisors and other key stakeholders to maintain robust security standards.
Develop, maintain and communicate security policies, procedures and awareness initiatives that promote a strong security culture across the business.
Monitor the effectiveness of physical, personnel and information security controls, identifying opportunities for improvement and risk reduction.
Manage security incidents, investigations and audit activities, ensuring timely reporting, escalation and resolution of security risks and non-compliance issues.
Act as Crypto Custodian for the Defence Operating Unit and provide leadership, guidance and support to local security personnel and wider business teams.

Requirements

Significant experience operating as a senior security representative within a defence, government or highly regulated environment.
Strong knowledge of UK Government security standards, policies and frameworks, including JSP 440, GovS 007 and related security guidance.
Experience developing, implementing and improving security policies, standards and compliance processes.
Expertise across physical security, information security and personnel security controls.
Excellent stakeholder management and communication skills, with the ability to influence at all levels and balance security requirements with business objectives.
A proactive, self-motivated approach with experience leading change, managing competing priorities and working independently.
Previous experience within a UK Ministry of Defence environment.
Knowledge of Defence Nuclear security controls and associated regulatory requirements.
Experience managing security investigations and responding to complex security incidents.
Experience leading or line managing security teams.
Must be a British Citizen.
Must be able to gain and maintain the highest level of UK Government security clearance.

Skills

Physical security
Information security
Personnel security controls
Stakeholder management
Communication skills
Security investigations
Incident response

Location

New Malden
Central London

Work Type

Travel 10% of the Time

Experience Level

Senior security representative
Leadership

Benefits

Flexible working options, including compressed fortnight arrangements where applicable
Private healthcare
Cash health plan
Holiday buy and sell scheme
Annual performance bonus opportunity
Career development and learning programmes
Professional membership support
Pension scheme
Employee assistance programme
Inclusive employee networks and communities

About the Company

At Northrop Grumman UK, you are part of a team driving innovation where it matters most, solving tomorrow’s challenges and shaping the technology solutions of the future.
This mindset goes beyond our customer solutions; it’s the foundation for your career development and the impact we have within the communities where we live and work.
Whether you're enabling critical defence programmes, protecting national security, or supporting cutting-edge technology, you'll be part of work that truly matters.
Every day, our teams contribute to building a safer, more secure and more connected world.
Our work supports critical national security and defence capabilities, giving you the opportunity to make a meaningful impact through innovation, technology and expertise.
We are committed to creating an environment where everyone feels valued, respected and empowered to succeed.
Every voice matters, and we believe diverse perspectives drive stronger outcomes for our people, customers and communities.
Whether you're looking to deepen your expertise, broaden your experience or move into leadership, we'll support your development through challenging projects, mentorship, training and opportunities across our business.

Equal Opportunity

Northrop Grumman is committed to hiring and retaining a diverse workforce, and encourages individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.