Cyber Security Jobs

• Aberdeen
• Hybrid
• £650 – £720 pd
• Senior
• Contract

Lead and coordinate cybersecurity assessments, risk remediation and control improvements across Operational Technology environments, translating security gaps into practical remediation plans. Work with OT/ICS engineers, IT, technical authorities and third-party suppliers to strengthen critical operational systems, covering asset inventories, privileged access, network segmentation, monitoring and incident response.

SIEM · NIST Cybersecurity Framework · ISO 27001

• London
• Senior

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.

Chromium · Cloudflare Workers · Nomad +3

• Lincoln
• Hybrid
• £55,000 pa
• Senior

Lead the design, implementation and governance of OT network and security across multiple manufacturing sites, working alongside the Global Head of IT Operations. Act as subject matter expert for SCADA, PLCs, ICS networks and industrial protocols, securing and modernising environments while ensuring availability and resilience of business systems.

SCADA · PLC · ICS Networks +4

• London
• Remote

Owns the end-to-end migration and security operations transformation for enterprise customers moving from legacy platforms to Cortex XDR/XSIAM, Prisma Cloud or Strata. Runs data cutovers, policy mapping, API and log ingestion work, plus Day-in-the-Life workshops and executive value realization sessions. Combines hands-on Python, CLI and REST API automation with customer-facing delivery in a global, remote-first team.

Cortex XDR · Cortex XSIAM · Prisma Cloud +2

• London
• Mid-level

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.

Cloudflare · Magic Transit · Magic Firewall +7

• Knutsford
• Senior · manages people

Hands-on engineering role safeguarding encryption keys and cryptographic services across 300+ enterprise platforms, working extensively with Thales and Entrust HSMs. Involves key management, certificate management, production support, and on-call rotation, with occasional off-site data centre work.

Thales · Entrust · SharePoint +5

• Liverpool
• Hybrid
• £60,000 – £65,000 pa
• Senior
• Contract

Act as the escalation point for an external MSSP, investigating and responding to security incidents and performing detailed event analysis to identify threats. Drive hands-on remediation, detection engineering, and security reviews across cloud and enterprise collaboration environments, using frameworks like MITRE ATT&CK. A one-year fixed-term contract with strong extension potential, hybrid across Liverpool, Glasgow, or London.

MITRE ATT&CK

• Kings Hill
• Hybrid
• £54,500 – £55,000 pa
• Mid-level
• Permanent

Monitor, triage and investigate security alerts, incidents and requests, managing records through to closure and coordinating recovery. Use tools such as Tenable and Darktrace across cloud and wider IT infrastructure, supporting vulnerability management, threat intelligence and malware analysis, with on-call backup for emergency response.

Tenable · Darktrace

• United Kingdom
• Remote
• Senior

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.

Microsoft Entra ID · Active Directory · Saviynt +4

• Farnborough
• Hybrid
• Mid-level
• Permanent

Protects a critical defence IT application and infrastructure by running vulnerability scans, managing endpoint security, responding to incidents and hardening systems. Works with frameworks such as Government Functional Standard 007 and standards like CIS, STIG and NIST, leading security implementation and assurance on a major UK government programme.

CIS · STIG · NIST +2

• London
• Mid-level

Builds and operates secure, scalable platforms and services that take enterprise AI solutions from evaluation into production. Works across DevOps, cloud engineering and MLOps, configuring environments, CI/CD pipelines, automation, monitoring and identity controls alongside AI specialists, data scientists and security teams.

AWS · Azure · GCP +7

• Huntingdon
• Mid-level

Second-line engineer providing advanced troubleshooting, fault rectification and problem management across highly utilised, multi-security-level IT systems. Duties include server and VM maintenance, WSUS/SCCM patching, documentation, change requests and infrastructure project work, liaising with customers to meet SLA and KPI targets.

WSUS · SCCM · SD+ +1

• Milton Keynes
• Remote
• £12,000 – £150,000 pa
• Director · manages people

Lead a globally distributed engineering organisation spanning cyber security, backend development, sensor infrastructure and AI-driven vulnerability research. Set technical strategy and standards while providing hands-on direction across architecture, system design and code review, and drive adoption of AI, LLMs and autonomous workflows to accelerate vulnerability discovery and exploit analysis.

LLM

• London
• Hybrid · 2–3 days in office
• £110,000 – £135,000 pa
• Lead · manages people

Lead the Enablement platform group, owning infrastructure, CI/CD pipelines and reliability practices across engineering. Set platform strategy and roadmap, manage SLOs, incident response and AWS cloud spend, while partnering with the Expansion product group to balance platform capacity against feature delivery. Also coach engineers and lead hiring for platform and SRE roles.

AWS · Kubernetes · Docker +6

• London
• Hybrid · 1–2 days in office
• £75,000 – £90,000 pa
• Senior
• Permanent

Design, build and operate secure AWS platforms using Terraform, Kubernetes/EKS and CI/CD for public and private sector clients. You will own technical delivery in your area, create reusable modules and deployment patterns, and mentor less experienced engineers within multi-disciplinary consulting teams.

AWS · Terraform · Kubernetes +7