Cyber Security Jobs

• 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

• London
• Mid-level

Builds and maintains a Chromium-based browser engine, remote rendering and streaming tech, and distributed services that run browser sessions across a global network. Day-to-day work spans C++ browser code, Go/Rust/TypeScript services, debugging across browser processes and Linux hosts, and improving latency and reliability, with production on-call.

Chromium · Cloudflare Workers · Nomad +3

• London
• Mid-level
• Permanent

Builds and operates automation platforms that onboard threat detection, remediate security risk and accelerate incident response across every AWS account. The role spans designing loosely specified features, owning operational health through instrumentation and automation, and participating in an on-call rotation, using AWS services, Python and TypeScript at very high scale.

AWS

• London
• Hybrid · 3 days in office
• £45,000 – £50,000 pa
• Mid-level

Supports continuous improvement of cyber security processes, tools and operational practices, including vulnerability management, threat detection and security monitoring. Works with technical teams to optimise and integrate SIEM, EDR and identity security platforms, and develops reporting to track security performance. Exposure to Microsoft Logic Apps or Power BI is advantageous.

SIEM · EDR · Microsoft Logic Apps +1

• London
• £80,000 – £90,000 pa
• Senior

Strengthen and maintain cyber security posture through assurance, incident response coordination, vulnerability management and governance. Work with frameworks including ISO 27001, SOC2, NIST and GDPR, overseeing MSSP and SOC activities, with technical involvement in investigations, threat analysis and major incidents.

EDR · SIEM · NDR +1

• London
• Senior

Customer-facing consulting role advising on ServiceNow security, risk and compliance, including data encryption, key management, GRC, Security Vault and SecOps. Involves workshops, security and maturity assessments, architecture reviews, gap analysis and remediation roadmaps, working with customer security leaders, risk teams and platform owners.

ServiceNow · ServiceNow Data Encryption · ServiceNow GRC +2

• Glasgow
• Hybrid · 2 days in office
• Senior

Hands-on technical role leading security monitoring, incident response and threat detection using SIEM, EDR, DLP and vulnerability management tools. Acts as a technical SME, mentoring junior analysts and collaborating with global IT teams to maintain ISO 27001-aligned controls and BAU security operations.

ServiceNow · Cherwell · Jira +1

• Bristol
• Hybrid
• £65,000 – £75,000 pa
• Mid-level

Hands-on security role covering network, cloud and endpoint environments, including firewalls, VPNs, IDS/IPS, XDR and vulnerability management. You will improve threat detection, lead incident investigations and build automation with PowerShell, Python or Terraform while securing AWS and Azure workloads.

AWS · Microsoft Azure · PowerShell +7

• London
• Senior
• Permanent

Hands-on security advisory role protecting pre-release film and series content across the production lifecycle, from editorial setup and Aspera transfers to cloud storage and on-set networking. Also maintains AWS infrastructure, builds Python automation for access governance and audit reporting, and researches emerging threats such as forensic watermarking and generative AI misuse.

AWS · Aspera · Python

• 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

• Warwick
• Remote
• £70,000 – £85,000 pa
• Senior

Hands-on role securing Azure, identity, endpoint and network environments in a complex enterprise estate. You will design and maintain security controls, manage cloud security posture, strengthen identity with Conditional Access and PAM, administer Defender and Palo Alto tooling, and automate workflows via scripting and APIs. The position is senior and autonomous, mentoring juniors and working with architecture, infrastructure, GRC and suppliers.

Microsoft Azure · Microsoft Defender · Defender for Cloud +7

• United Kingdom
• Senior

Lead the development and delivery of an organisation's information security strategy, governance, risk and compliance programme, including ISO 27001 and Cyber Essentials. Provide technical oversight across infrastructure, cloud, networking and security platforms, manage incident response and third-party security providers, and influence senior stakeholders. Suits a security leader with a background in IT infrastructure or networking.

Windows Server · Active Directory · Microsoft 365 +7

• Liverpool
• Hybrid
• Mid-level
• Permanent

Day-to-day work centres on information security risk assessments across technology, applications, projects and business processes, tracking mitigations and escalating significant risks. The role also covers third-party supplier due diligence, security assurance reviews, vulnerability remediation tracking, policy maintenance and incident support, working alongside Security Operations and IT teams.

ISO 27001 · NIST

• Nottingham
• Hybrid
• £60,875 – £81,543 pa
• Senior
• Permanent

Independently manage operational cybersecurity activities including incident response, risk and vulnerability assessments, and security control implementation across cloud, network and endpoint environments. Maintain regulatory compliance, support audits and governance, and join an out-of-hours incident response rota.

SIEM

• Dublin, Ireland
• Hybrid
• Senior · manages people
• Permanent

Lead a small defensive security team accountable for detection, investigation and response across cloud, endpoint, identity and SaaS estates, while managing an outsourced monitoring partner and driving measurable improvement. The role owns serious incident response, detection tuning and a plan for AI and automation in the SOC, working alongside a separate leader focused on engineering and architecture.

Microsoft