Cyber Security Jobs

• Germany
• Remote
• Senior

Conducts vulnerability research and exploit development, analysing vendor patches to identify flaws and building proof-of-concept exploits. Reviews logs and payloads to confirm 0-day and n-day exploitation, and develops automated tooling for large-scale data collection and analysis. Publishes findings on the CrowdStrike blog or at conferences and supports other intelligence teams with ad-hoc technical solutions.

CrowdStrike · GenAI · LLM +3

• Ireland
• Remote
• Senior

Join the Advanced Research Team to perform vulnerability research across a wide range of targets, analysing vendor patches to identify vulnerabilities and develop proof-of-concept exploits. You will build automated solutions for collecting and processing data at scale, reverse engineer malicious payloads, and publish findings on the CrowdStrike blog or at conferences.

CrowdStrike · GenAI · LLM +3

• London
• Remote
• £30,000 – £40,000 pa
• Entry level

A career-change training programme combining online CompTIA A+, Network+ and Security+ study with practical labs, tutor and mentor support, plus recruitment and placement help. It targets people with no prior IT experience, aiming to place them first as an IT Technician before progressing into cyber security roles.

CompTIA A+ · CompTIA Network+ · CompTIA Security+ +2

• London
• Remote
• £30,000 – £40,000 pa
• Entry level

A career-change training programme combining online CompTIA A+, Network+ and Security+ study with practical labs, tutor and mentor support, and recruitment/placement assistance. On completion, participants are supported into an initial IT Technician role before progressing toward cyber security positions such as analyst or security engineer.

CompTIA A+ · CompTIA Network+ · CompTIA Security+ +2

• London
• Hybrid · 3 days in office
• £100,000 – £110,000 pa
• Mid-level · manages people

Leads a security operations function within a professional services firm, providing technical leadership across incident response, detection engineering and vulnerability management. Works with infrastructure, risk and third-party SOC providers, managing outsourced security suppliers and embedding security into technology projects. Hybrid role, three days a week in the City of London office.

Microsoft Azure · Entra ID · SIEM +1

• Birkenhead
• £50,000 – £55,000 pa
• Senior
• Permanent

Hands-on senior role owning a marine energy company's IT infrastructure, covering network architecture, security, Linux and AWS administration, DNS, email systems, monitoring, backup and automation. The administrator maintains and improves office, production, lab and remote-access networks, plus disaster recovery and access control, with full training provided.

AWS · Ubuntu · Linux +7

• Polegate
• Hybrid · 1 day in office
• £70,000 – £80,000 pa
• Mid-level

Designs and implements cloud-native security solutions on Microsoft Azure, applying Security as Code and automation tooling. Works with Security Architects to define cloud security strategy, establish guardrails for developers, and ensure compliance with GDPR, ISO 27001 and NIST. Involves AKS, DevSecOps, Defender, SIEM and scripting with BICEP, ARM, PowerShell and Python in an agile, hybrid team.

Azure Kubernetes Service · Microsoft Defender · SIEM +8

• Manchester
• Hybrid · 2 days in office

Owns the end-to-end lifecycle of security products such as IAM, EDR, SIEM and cloud security, defining roadmaps, backlogs and measurable outcomes around risk reduction and control coverage. Works with engineering, GRC and vendors to deliver usable, auditable controls, balancing risk, cost and usability while acting as the main stakeholder contact.

IAM · EDR · SIEM

• United Kingdom
• Remote
• £70,000 – £90,000 pa
• Senior
• Permanent

Lead OT cyber risk assessments on client sites, which makes up around 80% of the role, and carry out site surveys across ICS, SCADA, DCS and wider OT environments. Build improvement roadmaps and security programmes, applying standards such as IEC 62443, NCSC CAF, NIST SP 800-82 and HSE OG86, while supporting the sales team on follow-on opportunities and proposals.

IEC 62443 · NCSC CAF · NIST SP 800-82 +1

• Solihull
• On-site
• £32,000 – £38,400 pa
• Mid-level
• Permanent · Shift work

Join a brand-new 24/7 support team providing advanced diagnostics and resolution of network incidents across enterprise environments. You will troubleshoot routing, switching, firewalls, wireless and connectivity issues, manage escalations with vendors, and handle major incident response on a 4 on/4 off shift pattern.

Cisco · Meraki · Extreme +7

• Farnborough
• Hybrid
• Senior
• Permanent

Lead protective and information security engineering on a critical MOD programme, shaping secure designs, assuring controls, and managing vulnerabilities across infrastructure, endpoints, identity and AWS cloud. Combines hands-on hardening, incident response leadership and ST&V with governance, reporting and mentoring, working largely autonomously on-site in Farnborough with some remote work.

AWS

• Newbury
• Senior

Monitors and manages network equipment and infrastructure for customer services across EMEA and North America, with a strong focus on firewall and network security administration. Day-to-day work covers Cisco ASA, Firepower and Palo Alto firewalls, VMware vSphere and NetApp storage, plus automation and out-of-hours support on a rota.

Cisco ASA · Cisco Firepower Threat Defense · Palo Alto PA-Series +7

• London
• Mid-level

Hands-on incident response role covering detection, triage, investigation, containment and recovery of cyber incidents in a complex enterprise environment. Day to day involves monitoring SIEM and EDR/XDR alerts, analysing logs, packet captures and forensic images, threat hunting, and mapping activity to MITRE ATT&CK. Also maintains playbooks, evidence records and post-incident reports, and briefs senior stakeholders.

Microsoft Sentinel · Defender XDR · Defender for Identity +7

• London
• On-site
• Junior
• Permanent

Day-to-day management of a bank's IT infrastructure, covering server room operations, VMware virtualisation, network and storage administration, backup, disaster recovery and IT security compliance, plus Tier 2 support. Works alongside the IT Infrastructure Manager, liaising with the parent bank and data centre, and requires fluent Mandarin and English.

VMware · vSphere · ESXi +7

• London
• Hybrid
• £650 – £750 pd
• Mid-level
• Contract

Investigate and respond to cyber security incidents across enterprise environments, triaging alerts from SIEM, EDR/XDR, cloud, identity and network tools. Conduct digital forensics, proactive threat hunting and detection tuning, coordinating containment and recovery with infrastructure, cloud and identity teams. Six-month contract within a collaborative security function defending a large enterprise.

SIEM · EDR · XDR +7