Security engineer classified systems Work, Jobs in Hartwell, Nth (with Salaries)

Information Security Engineer - Classified Systems
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SP Senior Systems Engineer
Lockheed Martin —Ampthill
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DV Senior Control Systems Engineer
Lockheed Martin —Ampthill
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7h
DV Senior RF Modelling & Simulation Engineer
Lockheed Martin —Ampthill
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Information Security Engineer - Classified Systems

Lockheed Martin -
Ampthill

Apply Now

Job details

7 hours ago

Qualifications

Microsoft Windows Server
Stakeholder collaboration
Stakeholder liaison
CISSP
UK GDPR
Compliance audits
Information security
CISM
Analysis skills
General Data Protection Regulation (GDPR)
Incident response
NIST standards
Operational security implementation
Risk management
SIEM
Cybersecurity
Cyber security risk management
Communication skills
IaaS
Cybersecurity compliance and governance strategy development

Full job description

About the role

Reporting to the EMEA Information Security Officer, the Information Security Engineer will be responsible for the security engineering, accreditation, and lifecycle assurance of classified and sensitive IT systems. The role will support the design, implementation, operation, and continuous improvement of secure IT environments, ensuring compliance with UK Government, MoD, and Lockheed Martin security requirements.

The successful candidate will work closely with programme teams, architects, infrastructure engineers, accrediting authorities, and information assurance stakeholders to ensure security is embedded throughout the system lifecycle.

Key Responsibilities:

Lead the implementation of Secure by Design principles across classified IT systems and projects.
Provide security engineering expertise throughout the system development and operational lifecycle, ensuring security requirements are identified and implemented from concept through disposal.
Conduct security architecture reviews, threat assessments, and technical risk analysis for classified environments.
Support the development and maintenance of system security documentation, security architectures, and security operating procedures.
Lead and coordinate system accreditation activities for classified and sensitive systems.
Develop and maintain accreditation artefacts including Risk Management and Accreditation Documentation Sets (RMADS), Security Cases, Security Management Plans, and supporting evidence.
Work with Accreditors, Security Controllers, and customer security representatives to obtain and maintain Authority to Operate (ATO) approvals.
Ensure continued compliance with applicable regulatory, contractual, and customer security requirements throughout system operation.
Identify, assess, and mitigate cybersecurity risks within classified IT environments.
Conduct security assessments, vulnerability reviews, and compliance audits against corporate and government security standards.
Support risk treatment planning and remediation activities.
Ensure alignment with NCSC, MoD, JSP, NIST, and Lockheed Martin security policies and standards where applicable.
Support incident response investigations affecting classified systems.
Assist with vulnerability management, patch management, and security monitoring activities.
Participate in security reviews and technical investigations to identify root causes and corrective actions.
Provide technical guidance to system administrators and engineering teams on security controls and best practices.
Collaborate with programme managers, solution architects, IT teams, information assurance practitioners, and customer representatives.
Provide security guidance to project teams during system design, implementation, and operational support phases.
Support customer and regulatory audits and inspections.

Required skills, qualifications and experience

Strong understanding of Microsoft Windows Server, Linux operating systems, virtualisation technologies, and enterprise networking.
Experience securing classified, air-gapped, or highly regulated IT environments.
Knowledge of cloud security principles including AWS, IaaS, and PaaS technologies where applicable.
Familiarity with security technologies including endpoint protection, SIEM, vulnerability management, encryption, and identity management solutions
Demonstrable experience applying Secure by Design principles in complex IT systems and programmes.
Experience conducting security architecture reviews, threat modelling, and risk assessments.
Strong understanding of system hardening, security controls implementation, and security testing methodologies.
Experience supporting system engineering and security requirements management within regulated environments.

Accreditation & ATO Experience

Proven experience developing accreditation evidence and security assurance documentation.
Experience obtaining and maintaining Authority to Operate (ATO) approvals for classified or regulated systems.
Knowledge of UK Government and MoD accreditation processes and assurance frameworks.
Experience working directly with accrediting authorities, security controllers, or customer assurance organisations.

Excellent written and verbal communication skills.
Ability to communicate technical security concepts to both technical and non-technical stakeholders.
Strong analytical and problem-solving skills.
Ability to work independently while supporting multiple programmes and stakeholders.
CISSP, CISM, or equivalent Information Assurance certification.
Degree in Cyber Security, Information Security, Computer Science, Engineering, or a related discipline.
Experience within Defence, Aerospace, Government, or National Security sectors.

Additional Requirements

Knowledge of UK Government Security Policy Framework (SPF), NCSC guidance, JSP 440, and Defence security requirements.
Understanding of GDPR and UK Data Protection Act requirements where applicable.
Ability to obtain and maintain UK Security Check (SC) clearance with willingness and eligibility to achieve Developed Vetting (DV) clearance.
Occasional UK and EMEA travel may be required.

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security engineer classified systems jobs in hartwell, nth

Information Security Engineer - Classified Systems

SP Senior Systems Engineer

DV Senior Control Systems Engineer

DV Senior RF Modelling & Simulation Engineer

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