Cyber Security Jobs

• Bucharest, Romania
• Remote
• Senior
• Permanent

Owns major components of the Windows kernel-mode Falcon sensor, architecting and building anti-virus and EDR features that span file system, memory, process and networking subsystems. Leads projects end to end, from design through unit and component testing, while mentoring and collaborating with a distributed, cross-platform team.

Windows · Mac · Linux +1

• Reading
• Remote
• Senior
• Permanent

Owns major components of the Falcon endpoint sensor, a Windows kernel-mode driver that observes system activity, detects malicious behaviour and provides on-box prevention plus telemetry to the cloud. Work spans architecture, design and delivery across file system, memory, process and networking subsystems, with shared components across Windows, Mac and Linux. Involves leading projects, mentoring and collaborating with distributed teams.

Windows · Mac · Linux +2

• London
• £80,000 – £120,000 pa
• Lead · manages people

Lead the EUC Engineering team, owning the modernisation roadmap for secure, persona-led workplace services across physical, virtual and cloud environments. Balance strategic transformation with the stability, security and governance of business-critical platforms, while coaching engineers and influencing senior stakeholders across infrastructure, cyber and architecture.

Microsoft Intune · Windows Autopilot · Azure Virtual Desktop +2

• London
• Hybrid
• Senior

Engineer and maintain enterprise Windows endpoint, Citrix and application-delivery services across EMEA, covering design, build, testing, release and operational handover. The role involves automation with PowerShell, vulnerability and lifecycle remediation, and root-cause analysis using platform telemetry, working with infrastructure, cyber security and vendor teams.

Microsoft Intune · Windows Autopilot · Windows 365 +7

• 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

• London
• Hybrid
• Senior
• Permanent

Senior overlay role acting as lead technical strategist for BT across the UK and EMEA, driving joint technical alignment and co-architecting security offerings. Involves positioning NetSec, SASE, Zero Trust and Cortex CloudSecOps into BT's managed service architecture, leading complex POCs and demos, and providing targeted post-sales advisory. Requires executive-level engagement with BT leadership and close co-selling with internal sales, with around 30% UK travel.

Palo Alto Networks · Cortex · AWS +6

• London
• Lead

Technical owner for a portfolio of EMEA strategic accounts and US identity/workforce platform partners, split roughly 70/30. Drives API and SDK integration, product adoption, RFPs, trials and proofs of concept while mentoring solutions engineers globally and feeding market insight into the product roadmap.

RESTful APIs · SDKs

• London
• Hybrid · 2 days in office
• £44,000 – £66,000 pa
• Mid-level

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.

Mimecast · Microsoft 365 Defender · Okta +7

• London

The Application Security Consultant will act as a technical authority and trusted advisor to engineering and product teams, leading application security reviews, conducting various security assessments, and integrating security into the development lifecycle. The role involves working across internal IT and customer-facing products, promoting secure coding practices, and delivering security training.

• London
• Hybrid · 3 days in office
• Senior
• Permanent

Builds and operates production ML systems for document classification and extraction, using LLMs/VLMs and traditional ML to power identity verification at scale. Leads technical design from RFC to deployment, optimises GPU inference, and develops training and evaluation pipelines. Works in a squad-based team alongside Applied Science, Product and Data Science.

AWS · Kubernetes · TensorFlow +4

• Blackburn
• Hybrid · 1–2 days in office
• £60,000 – £65,000 pa
• Senior

Hands-on senior role owning the reliability, security and improvement of a mixed Linux and Microsoft infrastructure estate. Day to day covers server administration, Ansible automation, Docker and Kubernetes container platforms, MySQL/Galera and MSSQL databases, CI/CD pipelines, monitoring, patching and disaster recovery, working closely with the Software Development Team, IT Operations and third-party partners.

Ansible · Docker · CRI-O +7

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

Hands-on role securing enterprise cloud environments across Azure and GCP, covering vulnerability remediation, cloud security tooling, Microsoft Defender, Conditional Access and identity controls. Works with infrastructure and engineering teams to embed best practice, support governance and compliance, and contribute to incident response, with remote on-call expected within six months.

Microsoft Azure · Google Cloud Platform · Microsoft Defender

• London
• On-site
• £70 – £85 pd
• Senior
• Permanent

Lead cloud security assurance from initial assessment through to approval, assessing services against NCSC Cloud Security Principles and MOD standards. Oversee compliance, audits and third-party access while advising project teams on secure configuration and risk mitigation. Supports Defence Cyber Certification, ISO 27001 and MOD security audits, presenting findings to senior governance stakeholders.

SaaS · ISO 27017 · ISO 27018 +1

• Staffordshire
• Hybrid · 2 days in office
• £50,000 – £55,000 pa
• Senior
• Permanent

Hands-on role taking technical ownership of Microsoft cloud environments, initially strengthening internal systems before moving into customer consultancy, solution design and pre-sales. Day to day covers Microsoft 365, Azure, Entra ID, Intune and SharePoint, plus security and governance work such as vulnerability scanning, remediation and Cyber Essentials compliance. Automation via Power Automate and acting as escalation point for complex cloud issues are also central.

Microsoft 365 · Azure · Entra ID +6

• Chichester
• Hybrid · 3 days in office
• £50,000 – £65,000 pa
• Mid-level

Hands-on role supporting and maintaining cloud-hosted production, development and test environments, with a strong focus on Microsoft Azure. Day to day involves troubleshooting infrastructure, application, database and networking issues, monitoring performance and security, remediating vulnerabilities, and improving processes through automation and documentation. Also supports disaster recovery planning and testing within a collaborative international software team.

Microsoft Azure · Windows