Cyber Security Jobs

CrowdStrike · London

Internship on CrowdStrike's Technical Analysis Cell, researching nation-state and criminal intrusions through reverse engineering, malware analysis and automation tooling. Interns build host- and network-based detection signatures and produce finished threat intelligence reporting for varied audiences.

CrowdStrike · Germany

Internship on CrowdStrike's Technical Analysis Cell, researching nation-state and criminal intrusions through reverse engineering of malware and tooling. The role involves building automation for malware analysis, creating host- and network-based detection signatures, and producing finished threat intelligence reporting for customers.

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.

Humanoid · London

Lead product cybersecurity assurance across the HMND 01 humanoid robot platforms, defining security requirements, threat modelling and risk artefacts for safety-critical electromechanical systems. Own TARA, security management plans and remediation actions, drive compliance with IEC 62443, the EU Machinery Regulation and the Cyber Resilience Act, and build a PSIRT process while guiding a cross-functional security team.

Cloudflare · London

Lead the Threat Application Services team within Cloudforce One, owning the Threat Events platform, external Threat Intel APIs, and backend systems that feed IOCs into WAF and Gateway for automated mitigation. Set architectural direction and operational excellence for distributed, high-latency-sensitive services, while hiring and mentoring engineers building agentic threat intelligence tools.

Darktrace · London

Customer-facing pre-sales technical role supporting Key Account Managers to design and manage Darktrace deployments for the UK's largest enterprise customers. Involves building technical relationships, responding to RFIs/RFPs, designing deployment architectures, and evangelising products at events, with roughly 20% travel.

Carbon 60 · London

Oversees cyber assurance across multiple domains or tribes, embedding security by design and ensuring controls meet risk appetite. Works with Digital Delivery leadership, the Cyber Team and the Cyber Security Office, advising on risk, policy and regulatory requirements. Requires threat and risk assessment across varied technology stacks and senior stakeholder influence.

Randstad Technologies Recruitment · Birmingham · £300 – £400 pd

Lead a six-month AI and digital platform security initiative, defining controls and guardrails for GenAI and machine learning across global operations. Architect defences spanning AWS, Azure, hybrid and on-prem environments, aligning with NIST and ISO 27001 while mentoring a senior team of security architects and advising C-suite stakeholders.

MUFG Pension & Market Services · United Kingdom

Joins the Information Security Service Delivery team to assess, design, configure and integrate security technology controls, acting as a technical escalation point for security concepts. Works hands-on with Zscaler, Okta, Crowdstrike, cloud and endpoint security, threat modelling and security architecture frameworks, ensuring designs meet policies and regulatory requirements.

Mimecast · London · £80,000 – £120,000 pa

Hands-on engineering role embedded in the Incydr product team, working directly with customers on technical health checks, custom integrations and troubleshooting. You get full access to the codebase and deployment tooling to diagnose and ship fixes, using AI coding tools to build purpose-built scripts and integrations. Expect some travel to customer sites, with most engagement remote under a hybrid model.

Mimecast · United Kingdom · £116,000 – £174,000 pa

Owns 1-3 national strategic reseller partnerships, building and executing channel business plans with agreed targets, milestones and quarterly business reviews. Drives partner-generated pipeline, ARR growth and retention, recruits new partners, and develops joint go-to-market and co-sell motions with Sales, Marketing, Product and Support.

Darktrace · Cambridge

Lead strategic and hands-on UX research across multiple cybersecurity products, defining a cross-product research roadmap and running qualitative and quantitative studies such as interviews, contextual enquiry and usability testing. Translate findings into personas, journey maps and workflow models that shape platform unification and information architecture, while building scalable research practices with Product, Design and Engineering.

Cambridge University Press & Assessment (CUPA) · Cambridge · £71,800 – £91,600 pa

Owns the cyber security agenda for English Learning Technology, setting strategy and priorities while advising senior leaders on cyber risk across applications, platforms, suppliers and services. Leads security governance, assurance and incident response, and builds and develops a small security operations team, working closely with the central security function.

Cloudflare · London

Builds and operates Cloudflare's Chromium-based browser isolation engine, working across C++, Rust, Go and TypeScript on remote rendering, streaming and distributed session services. The role spans systems programming, distributed systems and security, leading multi-component initiatives and on-call incident response.

Bachy Soletanche Limited · Ipswich

Owns the Information Security Management System for the Geotechnical Sub Alliance on the Sizewell C nuclear project, ensuring compliance with the client's ISMP and ISO/IEC 27001. Provides assurance over O365 and core IT controls, integrates with the client SOC, and leads incident response and security awareness across corporate and project systems.