Cyber Security Jobs

Network Engineer III - Backbone , London)

Design and operate large-scale, fault-tolerant hybrid cloud networks connecting data centers and edge locations across multiple cloud providers. Focus on IP and optical technologies, automation via infrastructure-as-code, and improving network reliability, scalability, and security. Lead initiatives from concept to deployment while participating in on-call support for critical systems.

CrowdStrike London, United Kingdom

Hybrid Permanent

Platform Professional Services, Sr. Analyst

This role involves hands-on incident handling, malware analysis, and remediation across various platforms. You will develop and improve detection processes, produce high-quality reports, and provide consulting support to clients using CrowdStrike's Falcon platform.

CrowdStrike

Remote

Senior Hardware Engineer

Design and develop high-quality Hardware Security Modules (HSMs) with a focus on security, reliability, and manufacturability. Engage in hardware prototyping, integration, and validation within an Agile framework, while supporting certification requirements and mentoring junior engineers. Work across electronic, digital, and mechanical domains in a multidisciplinary team.

Entrust Cambridge, United Kingdom

Platform Architect - Agentic Trust

This role involves defining and governing a four-plane reference architecture (Identity, Authority, Execution, Assurance) for Entrust’s Agentic Trust Layer, ensuring cryptographic assurance, interoperability, and scalability across product lines. The Platform Architect leads technical standards, serves as design authority on all build tracks, and shapes industry standards in agentic trust and digital identity. Key responsibilities include owning the Agent Passport, Permission Slip framework, Evidence Ledger, and Policy Engine architectures, while ensuring compliance with global regulations and third-party assurance regimes.

Entrust United States

Cyber Security Engineer - Red Team within UK

Design and build offensive security labs and gamified learning content on a cyber resilience platform, simulating real-world red team attacks and AI-driven threats. Research and translate advanced tactics into engaging, practical exercises for technical and non-technical users, while collaborating with product teams to innovate training delivery.

Immersive United Kingdom

Remote Permanent

Security Business Partner – IT Operations

This role involves working closely with IT Operations teams to embed security controls across servers, endpoints, networks, and cloud-hosted services. Responsibilities include vulnerability management, identity and access management, network security, and data protection, with a focus on risk-based improvements and compliance.

A2Dominion Walpole, London, United Kingdom £69,922 – £76,000 pa

Hybrid Permanent Clearance Required

Senior Cloud Security Engineer

This role involves providing expert security guidance and hands-on engineering support, working closely with teams to embed effective security practices and manage cloud environments. Responsibilities include strengthening security controls, responding to incidents, and contributing to the continuous improvement of the Information Security posture.

Hays Technology Stockport, Manchester, United Kingdom £55,000 – £70,000 pa

AWS DevSecOps / Cloud Platform Engineer

This role involves developing, deploying, and supporting secure and resilient AWS platforms and applications. Responsibilities include infrastructure automation, DevSecOps practices, cloud security, and application modernisation within a regulated environment.

Parity Network Milton Keynes, Buckinghamshire, United Kingdom £600 pd

Platform Engineer

This role involves working on the Azure cloud platform, building and maintaining infrastructure, developing CI/CD pipelines, and supporting application deployments. You'll collaborate closely with software engineers to ensure secure and reliable operations, with opportunities to influence platform evolution and standards.

Maxwell Bond Russell Square, London, United Kingdom £75,000 – £90,000 pa

Cloud Security Architect - Cloud Infrastructure Services

This role involves designing and implementing secure cloud architectures for public, private, and hybrid environments, working closely with clients and cross-functional teams. Responsibilities include threat modelling, security automation, and mentoring colleagues on secure cloud practices.

83zero Fleet Street, City And County Of the City Of London, United Kingdom £100,000 – £110,000 pa

2027 Technology Cyber and Security Summer Programme Knutsford

Spend 10 weeks working on real cyber and security projects within Barclays' Chief Security Office, gaining hands-on experience in threat intelligence, secure engineering, and risk management. Collaborate with cross-functional teams to enhance security controls and support the bank’s resilience. Ideal for penultimate-year students passionate about technology and problem-solving.

Barclays United Kingdom

Internship

Senior Forward Deployed Engineer

This role involves diagnosing and resolving technical issues for Incydr customers, from deployment to ongoing operations, using deep access to code and telemetry. The engineer builds custom integrations, troubleshoots in complex environments, and bridges customer needs with product engineering, while coaching customer teams and shaping product improvements based on field insights. The position combines hands-on engineering with direct customer engagement in a security-focused, AI-first environment.

Mimecast London, United Kingdom £80,000 – £120,000 pa

Third Party Cyber Risk Lead

This role involves leading the third-party cyber risk programme within a highly regulated insurance environment, focusing on identifying, assessing, and managing cybersecurity risks across suppliers and vendors. The individual will mature the risk framework, conduct due diligence, ensure regulatory compliance with standards like DORA and NIS2, and collaborate with security, procurement, and legal teams. It requires deep expertise in vendor risk, regulatory alignment, and cross-functional stakeholder engagement.

Hays Technology Cheap, City And County Of the City Of London, United Kingdom £80,000 – £90,000 pa

Hybrid Permanent

Transformation Success Engineer (TSE)

The Transformation Success Engineer drives end-to-end technical migration and operational adoption of Palo Alto Networks' security platforms for enterprise customers. This role focuses on high-velocity data cutovers, delivering hands-on 'Day in the Life' workshops to build customer team proficiency, and leading value realization sessions that demonstrate measurable security and operational improvements using platform analytics. It combines deep technical execution with customer engagement to ensure successful transformation to modern security operations.

Palo Alto Networks London, United Kingdom

Remote Permanent

Lead Ethical Hacking Penetration Tester

Lead and conduct penetration testing, vulnerability assessments, and ethical hacking activities across applications, infrastructure, and networks. Provide expert-level cyber security assurance, produce risk-based reports, and guide remediation efforts. Contribute to government-wide security strategy and support team development within a hybrid working environment.

Driver & Vehicle Licensing Agency Swansea, West Glamorgan, United Kingdom £57,515 – £82,430 pa

Hybrid Permanent Clearance Required