Cyber Security Jobs

CrowdStrike · United Kingdom

Serve as technical lead on front-page incident response engagements for Fortune 100 organisations, conducting host and network forensics across Windows, Mac and Linux and hunting adversaries in large data sets. Work under outside counsel on intrusion investigations and present findings to executives, regulators and legal teams.

CrowdStrike · Ireland

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, using automation, AI and machine learning to scale analysis.

Palo Alto Networks · United Kingdom

Deliver white-glove onboarding and ongoing technical guidance for Managed XSIAM customers, analysing security data to improve detection coverage, alert quality and tenant hygiene. Lead customer touchpoints and security reviews while partnering with Unit 42 SOC engineering, Product and MDR teams to build automation workflows and scalable service frameworks.

Immersive · United Kingdom

Builds and maintains analytical data models in a cloud data warehouse, designing high-quality datasets for customer-facing reporting and developing semantic layers for BI. Works in a multi-disciplinary agile product team with data and software engineers, leading on data quality, observability and model optimisation while mentoring junior engineers.

Hays Technology · Sheffield · £450 – £500 pd

Owns end-to-end solution design across cybersecurity initiatives, producing architecture documents, high-level designs, patterns, decision records and risk assessments. Provides technical leadership and presents designs to Design Authorities and senior stakeholders, with deep IAM and HashiCorp Vault expertise. Requires three days per week onsite in Sheffield.

Netcraft · London

Join the Novel Classification team to build and operate machine learning systems that detect phishing sites and online scams at scale. You'll train, evaluate and serve classifiers on GPU-backed Kubernetes, run live experiments on precision and recall, and deploy LLM inference and computer vision models into production.

Sophos · United Kingdom

Senior individual contributor researching how threat actors adopt, weaponize and exploit AI, from LLM-powered social engineering to attacks on agentic AI systems. Involves instrumenting telemetry to detect adversarial AI use, automating research workflows with LLMs and Python, and publishing deep-dive intelligence externally. Works alongside CTU researchers, SophosLabs analysts, MDR threat hunters and data scientists.

eFinancialCareers · London

Own and lead the end-to-end Threat Intelligence Platform, driving strategic design, delivery and development to maximise value across a global cyber defense organisation. Build API integrations and connectors across commercial intelligence sources, govern intelligence standards such as source reliability, confidence scoring and TLP handling, and mentor junior analysts while producing intelligence for technical and executive audiences.

Entrust · United States - Field

Defines and governs a four-plane reference architecture (Identity, Authority, Execution, Assurance) for an agentic trust layer, owning specs like the Agent Passport, Permission Slip framework, Evidence Ledger and Policy Engine. Chairs architecture and boundary review boards, sets dependency contracts across product lines, and represents the company in standards bodies such as FIDO, OpenID and IETF.

Planet Recruitment · Manchester · £40,000 – £50,000 pa

Hands-on role delivering a Cyber Security Roadmap and hardening a Microsoft-centric technology estate. Day to day involves configuring and maintaining Defender, Intune, Entra ID and Microsoft 365 security and compliance tooling, plus vulnerability management, alert triage and incident remediation. Works with the Cyber Security Operations Manager, Group Head of Cyber, IT teams and external partners, and supports Cyber Essentials and CIS Controls accreditation.

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.

Darktrace · Paris, France

Customer-facing technical role partnering with security and IT stakeholders to drive platform adoption, reduce risk and demonstrate measurable value. You build technical success plans, spot adoption gaps and retention risks early, and feed technical health insights into renewals, QBRs and expansion discussions alongside Account Executives and Solutions Engineering.

Darktrace · London

Customer-facing technical role partnering with security and IT stakeholders to drive platform adoption, reduce risk and improve customer health. Works with Account Executives, Solutions Engineering and Renewals on technical success plans, adoption analytics, QBRs and renewal readiness. Requires fluency in French and English.

Harnham - Data and Analytics Recruitment · Newcastle upon Tyne · £73,000 – £84,000 pa

Own and operate a business-critical enterprise data platform on Microsoft Azure, acting as technical lead for architecture, scalability, governance and operational excellence. Work with Infrastructure, Security and Architecture teams on CI/CD, automation, monitoring and Infrastructure-as-Code, supporting production and incident management while enabling Data Engineers and shaping platform strategy.

Michael Page · Liverpool · £60,000 – £65,000 pa

Investigating and responding to escalated security incidents, performing detailed event analysis and threat detection while working with external security providers. Acts as a subject matter expert supporting cyber incident response, optimising SIEM, IAM and DLP platforms, running phishing simulations and security reviews across the technology estate.