Cyber Security Jobs

CrowdStrike · United Kingdom

Build and maintain single-page web applications for the Falcon platform and internal tooling used by Falcon Complete analysts, working primarily in React and Ember.js. The role sits in a distributed, remote-first team building cross-tenant software at very high scale, with responsibility for architecture, code review, automated testing and close collaboration with cloud engineers, UX designers and product managers.

CrowdStrike · Germany

Conducts vulnerability research and exploit development, analysing vendor patches to identify flaws and building proof-of-concept exploits. Reviews logs and payloads to confirm 0-day and n-day exploitation, and develops automated tooling for large-scale data collection and analysis. Publishes findings on the CrowdStrike blog or at conferences and supports other intelligence teams with ad-hoc technical solutions.

Darktrace · London

Owns the end-to-end roadmap for Darktrace's Network Detection and Response product, deciding what gets built and in what order. Works directly with customers running complex zero-trust, cloud-connected and segmented estates, translating their needs into product decisions alongside R&D and Product Marketing. Acts as the internal subject matter expert for the NDR portfolio, with a hybrid working pattern based in London.

Darktrace · Cambridge

Works at the intersection of security engineering and generative AI, researching, prototyping and shaping agentic workflows within the Darktrace product ecosystem. Collaborates with product, engineering and machine learning teams to turn ideas into prototypes, while maintaining product knowledge through open-ended research projects.

eFinancialCareers · London

Engineering-led role building defensive capability against AI-driven threats, spanning AI-assisted vulnerability management, security architecture for agentic AI, and detection and response for AI-originated attacks. Sits within Citi's CISO organisation across four teams, with a mandate to ship production tooling rather than work in an innovation lab.

Gleeson Recruitment Group · West Midlands (Region)

Owns the organisation's data protection strategy, privacy governance and regulatory compliance, working with Information Security, IT, HR and Legal. Day-to-day work covers UK GDPR, DPA 2018 and PECR compliance, DSARs, DPIAs, breach management, RoPA upkeep, supplier and transfer risk reviews, and training delivery. Hybrid working with autonomy to review and improve existing privacy practices.

eFinancialCareers · London

Network Engineer role within a team of network experts, managing network delivery to completion and handing off to support teams. Administers large-scale projects, tests, documents and deploys network infrastructure solutions, working with Solutions Architecture, Operations and information security. Requires Cisco routing/switching, SD-WAN (Viptela, Meraki), Azure networking, Terraform and firewall/VPN experience.

Cambridge University Press & Assessment (CUPA) · Cambridge · £54,800 – £73,250 pa

Designs secure, scalable cloud-native solutions on AWS within the English Enterprise Architecture team, partnering with product, engineering and security to shape architectures for large-scale transformation programmes. Produces architecture artefacts and decision records, governs architectural integrity, manages technical debt and risks, and mentors engineering teams.

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.

Mimecast · London · £44,000 – £66,000 pa

Acts as the trusted technical advisor for a portfolio of mid-market accounts, working in a three-person pod with an Account Manager and Renewals Manager. Owns platform adoption, configuration health and value scoring across email security, HRM and Incydr products, and packages proof-of-value and business reviews for executive audiences. Also leads churn mitigation and identifies expansion signals ahead of renewal.

Sizewell C · London · £66,866 pa

Owns end-to-end delivery, performance and continual improvement of enterprise IT services for a major nuclear energy programme, spanning Microsoft 365, Azure, infrastructure, networks, applications and cyber security operations. Combines technical leadership with ITIL service management, supplier governance and regulatory compliance, acting as escalation point for senior stakeholders and managing multiple managed service providers.

Sophos · United Kingdom

Hands-on engineering role managing a modern identity stack across the full lifecycle, from passwordless authentication and adaptive access controls to identity governance and non-human identities. You will configure and operate Microsoft Entra ID, Saviynt and Active Directory directly, integrate applications via SAML, OIDC, OAuth and SCIM, and join an out-of-hours support rota.

Local Pensions Partnership · Preston · £80,000 – £85,000 pa

Sets the strategic direction for the enterprise applications portfolio and automation capability, owning the applications roadmap, governance and systems integration. Chairs the Automation Forum, oversees application performance and major incidents, and leads a multidisciplinary team while managing vendors and senior stakeholders. Distinct for combining enterprise applications leadership with automation strategy in a pension administration setting.

CrowdStrike · London

Owns the global product vision and multi-year strategy for CrowdStrike's Falcon Next-Gen SIEM platform, prioritising third-party data connectors and integration pipelines based on market research and customer demand. Works across engineering, data services, sales ops and partners to define ingestion SLOs, mentor product managers and expand the SIEM ecosystem.