Cyber Security Jobs

CrowdStrike · Ireland

Security researcher role on CrowdStrike Intelligence's Advanced Research Team, developing automated solutions for large-scale data collection, running Internet-wide scans, operating and extending honeypots, and performing vulnerability research. Involves reverse engineering, patch analysis, and publishing research on the company blog or at conferences, alongside ad-hoc technical support for other intelligence teams.

CrowdStrike · Romania

Security researcher role on CrowdStrike Intelligence's Advanced Research Team, developing automated solutions for large-scale data collection, operating and extending honeypots, performing vulnerability research, and reproducing emerging vulnerabilities. The position also involves publishing research on the blog or at conferences and building GenAI/LLM workflows to support analysis and security research.

DCV Technologies · Royal Leamington Spa · £550 – £650 pd

Hands-on contract role owning the end-to-end detection engineering lifecycle, translating threat intelligence, hunting findings and adversary techniques into effective detection rules. Builds behavioural analytics and detection content across endpoint, identity, cloud, network and email telemetry using KQL, SPL, Sigma, Python and PowerShell, with tuning, purple teaming and Detection-as-Code work alongside SOC, IR and Red Team specialists.

NCC Group · Remote

Designs, builds and maintains security automations that detect, investigate and respond to cyber threats, working closely with Incident Response to identify improvements and create new playbooks. Delivers scalable automation within the Splunk ecosystem, covering advanced analytics, scripting, new use cases, validation of automation behaviour and documentation, plus mentoring junior engineers.

QinetiQ · Bristol · £65,700 – £73,000 pa

Lead cyber security vulnerability analysis, audit processes and business risk modelling for defence customers, while shaping cyber exercise scenarios and advising on security posture against NIST and ISO27001 frameworks. The role involves applying MITRE ATT&CK and Secure by Design approaches, working largely on-site at a customer site in Corsham.

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.

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.

Appcast Enterprise · Whiteley · £61,500 – £78,800 pa

Designs, develops and maintains manual and automated test scripts and reporting for a flagship National Security programme, using frameworks such as Katalon Studio, Selenium, SoapUI and JUnit. Analyses requirements and designs to build risk-based test approaches, working within hybrid Waterfall and Agile scrum teams alongside software and systems engineers.

RiverSafe · London

Client-facing consulting role leading end-to-end security engagements across security architecture, cloud security, DevSecOps, application security and security operations. You'll run workshops, design controls in AWS/Azure/GCP, produce risk-based deliverables and help identify follow-on work, contributing to proposals and account growth.

Experis · London · £450 – £455 pd

Hands-on SOC and incident response role monitoring, triaging and investigating cyber security threats across macOS endpoints, Linux cloud workloads, microservices and containerised platforms. You will contain and remediate incidents, document findings and evidence, and contribute to detection rules and response playbooks while working closely with security and engineering teams.

Entrust · London

Owns a core area of the document verification platform, setting strategy and roadmap for identity document checks used in onboarding and account opening. Works with Engineering, AI/ML, Data Science, Design, Growth and Compliance to improve verification accuracy, conversion, operational efficiency and fraud prevention, using experimentation and analytics to prioritise investments.

Entrust · Cambridge

Leads the design and delivery of complex features in a cryptographic security product, working hands-on across embedded software, platform components, client tools and APIs. Sets technical direction, mentors engineers and supports system-level architecture decisions on availability, latency and data models. Hybrid role in Cambridge, three days onsite.

Adecco · London · £473 – £800 pd

Senior role driving first-line cyber risk management and regulatory compliance across EMEA, coordinating responses to DORA and EBA requirements and translating them into actionable controls. Involves enhancing the Cyber GRC framework, managing risk registers and policy exceptions, and producing monthly metrics and KRIs for senior stakeholders. Acts as the Cyber GRC contact across the region, communicating complex regulatory matters in business language.

Cambridge University Press & Assessment (CUPA) · Cambridge · £69,600 – £85,000 pa

Leads a global business continuity, crisis management and incident response programme across operations in over 170 countries, owning the BCR framework, business impact analysis, testing and assurance. Partners with senior leaders, IT disaster recovery, Group Security and local continuity leads to embed resilience in a federated, matrixed organisation.

Adecco · Colchester · £51,000 – £55,000 pa

Hands-on role maintaining and improving an organisation's cyber security posture across its IT infrastructure, covering security operations, incident response, vulnerability management and compliance. Day to day involves SIEM, endpoint security and Microsoft tooling such as Entra ID, Defender, Purview and Intune, plus audit support and security improvement projects. Predominantly remote with occasional travel to the Essex office.