Cyber Security Jobs

Sr. Vulnerability Researcher

Develop automated tools for large-scale data analysis, conduct vulnerability research, and reverse engineer exploits across Windows, Linux, and other platforms. Support threat intelligence efforts by identifying and reproducing 0-day and n-day vulnerabilities, and contribute technical findings to public research publications. Work collaboratively across teams to meet urgent intelligence needs while advancing long-term security research initiatives.

CrowdStrike

Remote Permanent

Technical Support Engineer - Cloud , GBR)

Provide technical support to customers using CrowdStrike's cloud-based cybersecurity platform, troubleshooting issues across Windows, Linux, and cloud environments like AWS, Azure, and GCP. Act as a subject matter expert on key product features, document solutions, and collaborate with engineering teams to resolve complex technical problems. The role emphasizes customer advocacy, knowledge sharing, and continuous process improvement in a remote-first environment.

CrowdStrike United Kingdom

Remote Permanent

Threat Research Analyst

The role involves in-depth analysis of cyber threats, malware, and adversary TTPs using data science and analytical techniques. You'll proactively hunt for emerging threats, develop threat intelligence reports, and refine detection methodologies based on research. Collaboration with security researchers and product teams helps strengthen Darktrace’s AI-driven threat response capabilities.

Darktrace London, UB8 1LQ, United Kingdom

Threat Research Analyst

The role involves in-depth analysis of cyber threats, malware, and adversary TTPs using data science and analytical techniques. You'll proactively hunt for emerging threats, develop threat detection methodologies, produce intelligence reports, and present findings internally and externally. Collaboration with research, security, and product teams is key to enhancing Darktrace's AI-driven threat intelligence capabilities.

Darktrace Cambridge, CB2 3BJ, United Kingdom

Cyber Security Consultant

This role involves conducting cyber security risk assessments and delivering security assurance across complex IT, OT, and business systems. You'll support clients in governance, compliance, and resilience planning, using frameworks like ISO 27001 and NIST. The position emphasizes secure-by-design implementation and engagement with high-stakes sectors including defence and critical national infrastructure.

Matchtech Portsmouth, United Kingdom £46,000 – £60,000 pa

AI Enviornment & Cloud Engineer - London

Design and manage secure, scalable Azure cloud infrastructure to support AI and machine learning initiatives within a leading insurance market broker. Integrate AI solutions into enterprise systems using Infrastructure-as-Code with Terraform, and collaborate across data, security, and cloud teams. Operate in a fast-paced, stakeholder-facing environment with a focus on modern cloud architecture and AI platform readiness.

Tenth Revolution Group London, United Kingdom £90,000 – £100,000 pa

Infrastructure Security Engineer (M365, Entra ID, Defender, Intune) to& 15%

This role involves leading Microsoft infrastructure security initiatives within a migration and modernisation programme, with a focus on identity security and conditional access. The engineer will work extensively with M365, Entra ID, Intune, and Defender, alongside traditional on-premises technologies like Windows Server and Active Directory. The position supports hybrid working with 1–2 days per week in the Luton office.

Mind Recruitment - Technology, Executive & IT Sales Luton, United Kingdom £60,000 – £65,000 pa

Contract

Senior Security Researcher - (AI & Detection Engineering)

This role involves researching emerging cyber threats and leveraging AI technologies to improve threat detection and security automation. The candidate will develop prototypes and tools in Python, explore Agentic AI applications in security, and collaborate with engineering teams to integrate research into product capabilities. It's a research-driven position focused on advancing AI-powered cyber defence through innovation and technical exploration.

Salt Search London, United Kingdom £70,000 – £90,000 pa

Senior Infrastructure Engineer

This role involves providing first and second-line IT support while managing core infrastructure such as servers, networks, and identity systems. The engineer will troubleshoot technical issues, support end-users, and improve system reliability and security through automation and documentation. It combines hands-on support with operational infrastructure responsibilities in a growing technology environment.

Adria Solutions Oxford, United Kingdom £50,000 – £70,000 pa

Infrastructure Engineer

This role involves managing and improving server, virtualisation, and storage systems across Windows and Linux environments, alongside designing and supporting network infrastructure including firewalls, VLANs, and Wi-Fi. The engineer will lead technical project input, provide escalation support, maintain cloud services like Microsoft 365 and Entra ID, and contribute to security, resilience, and workplace technology initiatives. A strong focus on documentation, coaching, and cross-team collaboration is required.

Devonshire Hayes Recruitment Specialists Ltd London, United Kingdom £45,000 – £50,000 pa

Pre-Sales Consultant – IBM IT Managed services

This role involves leading technical discovery sessions, customer assessments, and workshops to translate business challenges into technology solutions across cybersecurity, cloud, data protection, and data centre transformation. The candidate will support proposals and RFPs, deliver technical presentations and demos, and collaborate with sales and engineering teams to design customer-focused solutions. It offers exposure to IBM technologies and a growing portfolio of enterprise clients in a hybrid-working environment.

hireful Manchester, United Kingdom £40,000 – £45,000 pa

Infrastructure Engineer Messaging

This role involves designing, building, and supporting secure messaging infrastructure within high-security government programmes, focusing on Microsoft-based platforms like Exchange, Skype, and SharePoint. The engineer will work across the full project lifecycle, contributing to system design, testing, deployment, and early-life support in a collaborative, knowledge-sharing environment. The position requires strong technical skills in Microsoft technologies and operates within a nationally critical security context.

Sopra Steria Gloucester, United Kingdom £45,000 – £60,000 pa

2nd Line IT Support Engineer - Manchester

This role involves providing advanced technical support as the primary escalation point for a 1st line team, diagnosing and resolving complex infrastructure and end-user issues across a Microsoft-first environment. The engineer will work hands-on with technologies including Microsoft 365, VMware VDI, Palo Alto, Juniper, and Intune, while supporting network infrastructure, security, and backup systems. The position plays a key part in infrastructure projects, change control, and IT transformation, requiring both deep technical skill and high-quality customer service.

Adria Solutions Manchester, United Kingdom £30,000 – £38,000 pa

Senior Vulnerability Management Analyst- CIO- BPL

This role involves managing the end-to-end vulnerability lifecycle across Barclays' technology estate, including scanning, triage, prioritisation, remediation tracking, and reporting. The analyst will use business context and exploitability to prioritise vulnerabilities beyond CVSS scores, working closely with engineering teams and feeding into compliance, risk, and board-level reporting. The position supports secure-by-design principles within a highly regulated financial environment.

Barclays United Kingdom

Directory Services Engineer

This role involves maintaining and enhancing identity and directory infrastructure for a UK government client, focusing on Active Directory, Group Policy, and multi-domain PullPrint solutions. The engineer will perform user account management, identity lifecycle management, and SQL-driven troubleshooting within a secure, SLA-driven environment. Work includes third-line support, system upgrades, and cross-domain integration in a collaborative team setting.

Sopra Steria Gloucester, United Kingdom £40,000 – £55,000 pa