181 jobs for “Cyber Security Analyst”
CrowdStrike United Kingdom
Investigates emerging malware and cyber threats across the full adversary kill chain, validating and improving Falcon's detection coverage. Works with Threat Research, Engineering, Data Science and Red Team to turn findings into product improvements, supporting external security testing programmes and building automation to speed analysis.
CrowdStrike Romania
Investigates emerging malware and cyber threats across the full attack lifecycle, validating Falcon's detection coverage and distinguishing genuine threats from background noise. Works with Threat Research, Engineering, Data Science and Red Team to turn findings into product improvements, and supports external security testing programmes such as AV-Test and SE Labs.
Sophos United Kingdom
Owns the strategy, roadmap and execution for the Endpoint Windows Platform, translating OS and security requirements into product priorities. Partners closely with Engineering, Microsoft and cross-portfolio teams on agent architecture, performance and platform change management, and supports go-to-market enablement.
Sophos United Kingdom
Leads incident response engagements for customers hit by cyberattacks, directing a team of consultants, running kick-off and daily update calls, and delegating forensic tasks. Handles multiple ransomware and BEC investigations concurrently, performing root cause analysis and producing executive-summary reports mapped to MITRE ATT&CK.
QinetiQ Portsmouth £50,850 – £56,500 pa
Advises customers on cyber security vulnerability, risk, audit and compliance, applying NIST and ISO27001 frameworks to risk assessments and security assurance. Supports accreditation, governance and mitigation strategies across government, defence and critical national infrastructure, engaging stakeholders and presenting findings. Based on-site at least three days a week with customer travel required.
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.
CBSbutler Holdings Limited trading as CBSbutler London £475 – £525 pd
Hands-on SOC and incident response role investigating cyber security threats across macOS endpoints, Linux cloud workloads, microservices and containerised environments. Responsibilities include alert triage, severity assessment, containment and remediation, telemetry correlation, evidence documentation and improving detection playbooks. On-site shift work covering 10-hour shifts between 06:00 and 16:00.
TXP United Kingdom £440 – £490 pd
Monitor, investigate and respond to cyber security incidents within a Microsoft security environment, using Microsoft Sentinel and the Defender suite. The role covers alert triage, threat hunting, log and telemetry analysis, and creating and tuning Sentinel analytics rules, workbooks and detection use cases. You will also support incident response containment and recovery, produce reports, and work with infrastructure, cloud and application teams to improve SOC processes and detection engineering.
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.
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.
TTP Cambridge
Consultants assess critical systems for cyber-physical vulnerabilities, combining deep hardware research, testing and reverse engineering with rapid prototyping of proof-of-concept demonstrators. Work spans niche defence and national security projects, interfacing with hardware via protocols like JTAG and UART and using test equipment such as oscilloscopes. The role is fully on-site in Cambridge labs within a flat, collaborative ~40-person consultancy.
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.
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.
TTP Cambridge
Consultants assess critical systems for vulnerabilities, building proof-of-concept demonstrators that combine software, hardware and user interaction. The role spans reverse engineering, low-level programming and rapid prototyping for UK defence and national security clients, working on-site alongside around 40 scientists and engineers.
Robert Half Oxford £25,500 – £29,000 pa
Provide first-line IT support to internal staff, managing and updating tickets while troubleshooting software, hardware and connectivity problems. Set up computers, mobile devices and software, escalate complex issues to senior colleagues, and maintain records and equipment logistics. Office-based with occasional travel to other sites.
