Cyber Security Jobs

165 jobs for “Defence”

Results

Senior Cryptosecurity Engineer

3 weeks ago

QinetiQ Malvern, England, United Kingdom £65,700 – £73,000 pa

Technically leads multidisciplinary teams on complex cryptosecurity bids and projects, interpreting user, system and security requirements for crypto systems. Advises on high-grade crypto and key management, analyses algorithms and secure protocols, and engages regularly with customers and stakeholders. Based on-site at Malvern, with travel to customer sites expected.

On-site Clearance Required

Senior Cyber Security Consultant

3 weeks ago

QinetiQ Malvern, England, United Kingdom £65,700 – £73,000 pa

Lead cyber security consultancy for defence and government customers, developing business risk models, running ISO 27001 audits and detailed vulnerability assessments using NIST and MITRE ATT&CK frameworks. You will translate technical threats into clear risk cases and mitigation strategies for senior stakeholders, embedding Secure by Design principles across projects. Based on a multi-site UK estate with at least three days a week on site and customer travel.

Hybrid Clearance Required

Incident Response Analyst

Yesterday

eFinancialCareers London £650 – £750 pd

Investigate and respond to cyber security incidents across enterprise environments, triaging alerts from SIEM, EDR/XDR, cloud, identity and network tools. Conduct digital forensics, proactive threat hunting and detection tuning, coordinating containment and recovery with infrastructure, cloud and identity teams. Six-month contract within a collaborative security function defending a large enterprise.

Hybrid Contract

Cyber Security Engineer

Last month

Appcast Enterprise Farnborough

Protects a critical defence IT application and infrastructure by running vulnerability scans, managing endpoint security, responding to incidents and hardening systems. Works with frameworks such as Government Functional Standard 007 and standards like CIS, STIG and NIST, leading security implementation and assurance on a major UK government programme.

Hybrid Permanent Clearance Required

IT Security Manager

Last month

Thomas Search Tidworth

Lead organisation-wide IT security for a large PFI support services contract, owning the security strategy, roadmap and compliance activities. Manage incidents, breaches, disaster recovery and business continuity, and extend controls across the supply chain. The role sits in the central business services function, working with cyber and quality teams on audit readiness and business change.

Hybrid

Security Engineer-Pentest, Continuous Security Testing

3 weeks ago

Amazon Virtual Location - Uk

Adversarial security testing role on AWS's Continuous Security Testing team, turning threat intelligence and scanner signals into testable hypotheses against live production services. Combines hands-on penetration testing with AI-augmented source code review, tracing chained attack paths and building lasting detections, canaries and fuzzers. Also involves testing agentic AI systems and mentoring engineers.

Permanent

Cyber Security Lead

Last month

Maxwell Bond London £115,000 – £135,000 pa

Owns security end to end for a confidential investment-data platform and its AI agents, split roughly 60% hands-on product and cloud security and 40% assurance and client-facing work. Sets AWS IAM, encryption and detection patterns, defines agent authorisation and prompt-injection defences, and drives SOC 2, ISO 27001 and AI Act readiness with penetration testing and client due diligence.

On-site

FPGA Engineer

3 days ago

Airbus Newport

Job Description:SECURITY CLEARANCE:Must have been a UK resident for a minimum of 5 years to be able to obtain SC Security ClearanceLOCATION:Newport, South Wales (with some hybrid working available subject to our Hybrid Working Policy)TYPE: Full timeWHAT'S IN IT FOR...

Environmental Test Engineer

Yesterday

Airbus Stevenage

Configure, instrument and operate electrodynamic shaker systems to run vibration and shock tests on new spacecraft equipment, installing accelerometers and flight hardware. Work with mechanical engineers to meet customer test objectives, maintain instrumentation and facilities through calibration and logbooks, and support internal and external audits while upholding quality and safety standards.

On-site Permanent Clearance Required
Genomics England logo

Network Architect (we have office locations in Cambridge, Leeds and London)

2 weeks ago

Genomics England London £89,000 pa

Architect secure, resilient network connectivity spanning AWS cloud platforms and on-premise infrastructure, supporting clinicians and researchers accessing sensitive genomic data. The role balances long-term network strategy with practical delivery, defining target architectures, standards and reusable patterns across cloud, hybrid, remote-access and partner connectivity. Involves designing AWS networking, hybrid multi-site connectivity, zero-trust security, and providing architectural governance through delivery.

Hybrid

2nd Line Engineer

Last week

Appcast Enterprise Huntingdon

Second-line engineer providing advanced troubleshooting, fault rectification and problem management across highly utilised, multi-security-level IT systems. Duties include server and VM maintenance, WSUS/SCCM patching, documentation, change requests and infrastructure project work, liaising with customers to meet SLA and KPI targets.

Clearance Required

Response Engineer - Cloudflare Managed Defense Center (CMDC)

2 weeks ago

Cloudflare London

Acts as primary technical responder for premium enterprise customers, autonomously investigating complex threat telemetry and handling live incident response for volumetric DDoS and application-layer attacks. Implements mitigation across OSI Layers 3, 4 and 7 using Cloudflare's security suite, performs packet and traffic flow analysis, and advises customers during active incidents. Requires 24x7 rotating shifts.

Clearance Required

Security engineer

Last month

TRIA Cardiff £45,000 – £50,000 pa

Hands-on engineering role in a Microsoft security partner's Security Operations team, building and tuning Sentinel detection rules with KQL and configuring Defender XDR and Microsoft 365 controls. Involves automation playbooks via Azure Logic Apps, vulnerability scanning and phishing simulations, DevOps/CI-CD work, and escalation-focused incident response rather than routine alert monitoring.

Hybrid Permanent Clearance Required

Security Operations Engineer, AWS Security Cloud Response, Amazon Security Cloud Security Response

3 weeks ago

Amazon London

Respond to security incidents across AWS cloud services, triaging issues and driving internal teams to timely remediation while balancing technical and business risk. Build internal automation tools and utilities, mentor junior staff, and share on-call responsibilities. Works within AWS Cloud Response, coordinating multi-team responses and publishing guidance for customer-impacting issues.

Permanent

SOC Analyst

2 days ago

Experis Eastleigh £50,000 pa

Technical Consultant - Threat Detection, Response & IntelligenceLocation: Hursley - On-siteSecurity clearance: UK national with a minimum of 5 years' UK residency requiredCertification: Microsoft Certified: Security Operations Analyst AssociateWe are seeking a technically strong and proactive Technical Consultant - Threat...

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