Cyber Security Jobs

• 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

• Aarhus, Denmark
• Remote
• Senior
• Permanent

Owns major components of the Windows kernel-mode endpoint sensor, architecting and building anti-virus and EDR features that cut across file system, memory, process and networking subsystems. Works on cross-platform deliverables with shared components across Windows, Mac and Linux, leading projects from design through delivery and demo.

Windows · Mac · Linux +1

• 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

• Stevenage
• Hybrid
• Mid-level
• Permanent

Design, provision and maintain Linux systems and engineering hardware underpinning a development environment, with a focus on Red Hat Enterprise Linux. Provide technical leadership to project teams, automate infrastructure with Ansible and scripting, and work with security teams on compliance. Based in Stevenage with hybrid working.

Red Hat Enterprise Linux · Ansible · Python +3

• Portsmouth
• Hybrid
• Mid-level
• Permanent

Systems engineering role focused on radiation and nuclear hardening for military fixed ground installations, spanning requirements elicitation, mitigation planning, test plans and architecture definition. You will lead customer and test house engagement, working with IS/IT specialists on end-to-end system lifecycles for defence communications equipment. Based on-site in Portsmouth with hybrid and flexible working, on stable long-term MOD, Government and SATCOM projects.

SATCOM

• Exeter
• Hybrid
• £500 pd
• Mid-level · manages people
• Temporary

Lead digital delivery for ICT services across a police strategic alliance, managing small teams that hold managed service providers and suppliers to account for hosting, networks, telephony, mobile and cyber security. Oversee SLAs, capacity planning, change management and ITIL-aligned service delivery, with hybrid working from Exeter and Winfrith.

Azure · Airwave

• Newcastle upon Tyne
• Hybrid
• £48,337 – £57,666 pa
• Lead
• Permanent

Senior technical lead role owning an estate of around 80 applications and 60 services across Windows, Linux/UNIX, Azure and SaaS, from building management systems to teaching and learning services. Combines hands-on support, database management, major incident oversight, root cause analysis and business analysis, while deputising for the Application Support Manager and mentoring the team.

Windows · Linux · UNIX +5

• London
• On-site
• Lead
• Permanent

Manage and improve a large-scale AWS and Kubernetes infrastructure powering an ML-based ID verification platform. Automate deployments, harden security with the security team, and provide tooling and guidance to product engineers to boost scalability and reliability. Works in an Agile DevOps team using Terraform, Helm, Docker, GitLab CI and Python.

AWS · Kubernetes · Terraform +7

• 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

• London
• £124,000 – £186,000 pa
• Senior

Owns architectural direction for Mimecast's Email & Collaboration Security product line, spanning email threat detection, DMARC, data platforms and response capabilities. Works across product, engineering and the Architecture Leadership Team to define integration contracts, ADRs and NFR targets, with cost-per-outcome reasoning and daily AI tooling use.

AWS · Kafka · MCP +4

• United Kingdom
• Remote
• Lead
• Permanent

Owns end-to-end product design for AI-powered and agentic experiences within an enterprise cyber resilience platform, from discovery and prototyping through validation and delivery. Champions Object-Oriented UX, governs the design system, and partners closely with product, engineering and research to turn complex cybersecurity data into intuitive workflows.

Immersive One

• London
• £50,000 – £55,000 pa
• Mid-level

Owns information security policies, risk management, data protection and business continuity within a global Group IT function, working alongside senior security managers. Hands-on role embedding security into business processes, maintaining ISO 27001 documentation, running audits and DPIAs, and supporting incident response and awareness training.

Microsoft Purview · Entra ID · Microsoft Defender +5

• Hull
• £45,000 – £55,000 pa
• Mid-level · manages people

Owns the global IT service desk for an international business, managing incidents, requests and escalations across the UK, US and Australia. Establishes service levels, processes and a knowledge base, oversees user and asset lifecycles, manages third-party suppliers and leads regional support teams, reporting to the Group Head of IT.

• Coventry
• Hybrid
• £55,000 – £65,000 pa
• Senior · manages people
• Permanent

Hands-on leadership of an IT infrastructure estate covering networks, servers, storage, virtualisation, cloud and workplace technologies, while managing a skilled infrastructure team and key supplier relationships. Balances strategy, roadmap and budget ownership with operational accountability for availability, resilience, security and major incident response. Hybrid working from Coventry, with governance across Azure, VMware, Hyper-V, Cisco, Fortinet and ITIL-based service management.

Cisco · Fortinet · HP Servers & Storage +7

• Newcastle upon Tyne
• £60,000 – £67,900 pa
• Lead · manages people

Senior hands-on leadership role owning IT operations, hybrid Azure infrastructure, service management and cyber security for a complex, high-profile political organisation. Leads and develops the IT team, sets the technology and cyber roadmap, manages suppliers and budgets, and advises senior stakeholders, with regular UK travel and occasional out-of-hours work around elections and major events.

Azure