Site Security Controller

Northrop Grumman; Royal Borough of Kingston upon Thames; On-site; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Flexible working

Private healthcare

Pension scheme

Annual performance bonus

Learning and development

Job summary

Northrop Grumman UK is seeking a Site Security Controller to protect people, facilities and information across New Malden and our UK HQ in Central London. You will govern security posture, lead accreditation and work with Defence stakeholders to maintain compliant, trusted operations.

The role offers exposure to high‑profile defence programmes, a chance to shape security policy, and to mentor security teams while partnering with senior leaders to balance security and business needs.

Qualifications

• Significant senior security experience in defence/government or highly regulated environments.
• Knowledge of JSP 440, GovS 007 and related UK government security guidance.
• Experience developing, implementing and improving security policies and compliance processes.
• Expertise across physical, information and personnel security controls.
• Excellent stakeholder management and communication skills, able to influence at all levels.

Responsibilities

• Lead security governance and compliance activities for New Malden and London sites.
• Maintain certification and accreditation of operational facilities.
• Develop, communicate and promote security policies and awareness across the business.
• Monitor effectiveness of security controls and identify improvement opportunities.
• Manage security incidents, investigations and audits with timely reporting and escalation.
• Act as Crypto Custodian for the Defence Operating Unit and support security teams.

Skills

Senior security experience

UK government security standards

Security policy development

Security controls (physical, info, ppl

Stakeholder management

Change leadership

Job description

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes

RELOCATION ASSISTANCE: No relocation assistance available

TRAVEL: Yes, 10% of the Time

What's your possible?

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. It's what we call Defining Possible .

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.

Opportunity Overview

This is more than just a job; it's a mission.

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. Working closely with customers, government stakeholders, facilities, compliance teams and senior leaders, you will help ensure our business remains secure, compliant and ready to deliver mission-critical capabilities.

This is an opportunity to influence security strategy, drive best practice, and act as a trusted security advisor within a highly respected defence organisation. 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.

What You'll Be Doing

You will:

• 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.

What We're Looking For

We're interested in hearing from people who can demonstrate:

• 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.

Desirable experience includes:

• 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.

At Northrop Grumman UK, we know that talent comes in many forms. If you're excited about this opportunity but don't meet every requirement, we still encourage you to apply. Your skills, experience and potential may make you an excellent fit for this role or another opportunity within our business.

Security Clearance

Due to the nature of our work, you must be a British Citizen for this role.

You must be able to gain and maintain the highest level of UK Government security clearance.

Our recruitment team is on hand to answer any questions and will guide you through the process: [e-mail]

Benefits

We recognise that our people are our greatest asset. That's why we offer a competitive and comprehensive benefits package, including:

• 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