Cyber Security Jobs

CrowdStrike · United Kingdom

Builds and operates large-scale data processing pipelines, storage systems and presentation layers for the Intelligence team, owning systems from design and prototyping through production deployment and long-term maintenance. Works autonomously on a distributed remote team, gathering requirements from analysts and choosing the technology stack, with existing Go and Python codebases to maintain and improve.

CrowdStrike · London

Designs, implements and operates a global multi-vendor, multi-cloud and hybrid data center network, covering subnetting, VPC peering, direct connects and hub-spoke topologies. Builds IaC and automation tooling (Ansible, Terraform, Python, Go) in CI/CD pipelines and handles complex production troubleshooting plus on-call rotations.

Darktrace · Cambridge

Backend engineering role focused primarily on TypeScript, prototyping and building new features for AI-driven cybersecurity products. You'll work with a cross-functional team of engineers, designers and strategists, using Docker and cloud environments, with opportunities to specialise across languages like Python, Rust and C++. Hybrid, requiring at least two days a week in the Cambridge office.

Darktrace · Cambridge

Contributes to security research projects spanning rapid prototyping and open-ended initiatives, with a focus on generative AI systems. Investigates attacker tradecraft such as prompt injection, poisoning and extraction attacks, and provides feedback to product, development and machine learning teams. Hybrid role requiring two days a week in the London or Cambridge office.

Cloudflare · London

Acts as primary technical responder for premium enterprise customers, autonomously investigating complex threat telemetry and handling live incident response for volumetric DDoS and application-layer attacks. Implements mitigation across OSI Layers 3, 4 and 7 using Cloudflare's security suite, performs packet and traffic flow analysis, and advises customers during active incidents. Requires 24x7 rotating shifts.

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.

eFinancialCareers · London

About the BusinessQuilter plc is a leading wealth management business, helping to enable brighter financial futures for every generation.Quilter oversees £157.4 billion in customer investments (as of August 2026). It has an adviser and customer offering spanning financial advice, investment...

CrowdStrike · Redmond, United States · US$140,000 – US$215,000 pa

Owns the product strategy for CrowdStrike's Falcon Privileged Access, driving just-in-time access, secrets management and session brokering across endpoint, cloud and infrastructure. Works with designers and other product teams to embed privileged context into the Falcon platform, using AI agents for research, specs and customer synthesis. Hybrid role with at least two days a week in office.

CrowdStrike · USA, DC · £140,000 – £215,000 pa

Lead a team of engineers building the foundational platform behind CrowdStrike's massive-scale distributed systems, including self-service infrastructure-as-code primitives and multi-cloud services. The role blends people management with hands-on architecture work, driving cloud cost optimization, deployment standards, and SRE practices across AWS and GCP.

CrowdStrike · New York, United States · US$140,000 – US$215,000 pa

Owns the strategy and roadmap for CrowdStrike's Falcon Privileged Access product, driving just-in-time access, secrets management, and session brokering across endpoint, cloud, and infrastructure. Works with designers and other product teams to build frictionless, AI-native PAM experiences informed by Falcon telemetry, while acting as the internal and external expert for the domain.

Darktrace · Cambridge

Owns prototyping and development of new ideas to improve Darktrace's cybersecurity services, balancing creativity with time constraints. Collaborates with a cross-functional team of engineers, designers and technical strategists on rapid prototyping and structured platform development, advancing methods for defending against unknown cyber-attacks. Requires production-quality Python coding, with Docker and containerisation experience and an interest in malware forensics.

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.