Cyber Security Jobs

• London
• On-site
• Senior
• Permanent

Builds AI/ML-driven security automation systems that detect, analyse and respond to threats at Amazon scale, integrating automated detection into the company's security infrastructure. Works alongside security engineers and scientists on proactive, offensive and defensive tooling, researching and prototyping new approaches. Distinct for its focus on autonomous security across one of the world's largest tech ecosystems.

AWS

• London
• Director · manages people
• Permanent

Lead and grow a team of security engineers and incident managers, owning incident response processes, SLAs and metrics at AWS scale. Partner with service teams on prioritisation and remediation, drive automation and process improvements, and guide architectural and technical strategy across organisations.

AWS

• Romania
• Remote
• Senior · manages people

Lead applied research applying LLMs, deep learning and other modern AI techniques to cybersecurity, architecting research strategy and making decisions on model architectures, training and deployment. Build production AI systems at massive scale while mentoring scientists and aligning technical strategy with senior leadership.

LLM · Deep Learning Frameworks · GPU +1

• United Kingdom - Field
• Senior

Senior individual contributor providing cross-team technical leadership for quality engineering across a multi-tenant SaaS platform. Defines automation architecture and risk-based quality strategies, builds reusable test frameworks, and embeds unit, integration, contract, API and end-to-end testing into CI/CD pipelines. Leads performance, scalability and resilience validation, including fault injection and chaos testing, while mentoring engineers and influencing release decisions.

Kubernetes · OAuth 2.0 · mTLS +4

• United Kingdom - Field
• Senior

Designs, builds, tests and operates significant capabilities of the Agentic Trust solution within R&D, delivering complex features across the full software development lifecycle. Develops secure APIs, services, integrations and SDKs, mentors less experienced developers, and troubleshoots production issues. Works with Product, Architecture and Security peers to keep the platform secure, scalable and reliable.

Kubernetes · MCP · LLM

• United Kingdom
• Remote
• Mid-level

Hands-on SRE role focused on CrowdStrike's Commercial Cloud, covering operational ownership of availability, latency, throughput, monitoring, incident response and capacity planning across thousands of bare metal servers and VMs. Involves building automation and tooling in C++, Java, Python or Go, working with monitoring stacks like Prometheus, Grafana and ELK, and joining a global on-call rotation.

CrowdStrike · ELK · Prometheus +15

• London
• On-site
• Senior

Design and build software to solve Workload Identity challenges, from prototyping to production, covering both client and server. Work across networking, security, cloud, Kubernetes, encryption, PKI, JWT and SPIFFE, with Golang development, while mentoring a close-knit team and engaging internal and external stakeholders on technical trade-offs.

Kubernetes · Windows API · SPIFFE +2

• London
• Hybrid · 2 days in office
• Senior

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.

AWS · Azure · Security+ +2

• London
• Hybrid · 2 days in office
• £115,000 – £125,000 pa
• Director

Own the information and cyber security agenda for an international organisation, defining strategy, policies and technical baselines across networks, cloud, identity and endpoints. A senior individual-contributor role without line management, working with infrastructure, technology and external providers to drive vulnerability management, monitoring, incident response and security architecture. Requires hands-on technical depth plus the ability to influence senior stakeholders.

Microsoft Azure · Microsoft 365 · Google Enterprise +3

• London
• Remote
• Senior

Senior technical product engineer role advising partners, customers and internal teams on cloud-native security, Cortex capabilities and SOC automation. Involves cross-functional projects, product roadmap feedback, and building playbooks and integrations across AWS, Azure and GCP.

AWS · Azure · GCP +3

• United Kingdom
• Hybrid
• Mid-level

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.

Zscaler · Okta · CrowdStrike +5

• London
• Director · manages people

Lead and develop the organisation's cyber security strategy, owning the information security framework including ISO 27001 and Cyber Essentials Plus. Reporting to the CIO, you will run security operations, manage an outsourced SOC, oversee incident response and vulnerability management, and mentor the security team. Legal-sector experience is mandatory, and the role spans Microsoft/Azure cloud security and SaaS assurance.

Microsoft Azure · SOC

• London
• Remote
• £40,000 – £50,000 pa
• Mid-level

Build and improve web applications for a cyber security business, working across the full stack with React interfaces and Node.js services and RESTful APIs. You'll own tasks from requirement to delivery, embed application security, and use AI-assisted development tools daily, joining a small team where you can influence technical and architectural decisions.

React · Node.js · Git +7

• Guildford
• Mid-level

Owns cybersecurity and information assurance workstreams, including certification assurance for ISO 27001, CE+ and DCC, Secure by Design reviews of infrastructure, cloud and application designs, and coordination of ITHCs, penetration testing and vulnerability remediation. Also manages supplier security compliance, Security Aspect Letters, spacecraft space licensing security, project security budgets and incident response duties within a defence programme context.

ISO 27001 · NIST SP 800-53 · CE+ +6

• London
• Lead

Security lead for an AI engineering team's products and platform, owning security reviews, threat modelling and sign-off from design through production. Covers AI/LLM risks like prompt injection, CVE remediation, scanning tooling in CI/CD, pen testing and incident response, reporting directly to the CIO.

Azure · GCP · GitHub Actions +7