Cyber Security Jobs

• Ireland
• Remote
• Senior · manages people

Lead a team of data scientists working at the intersection of machine learning, large language models and cybersecurity, translating business needs into technical objectives and driving research into production ML systems. The role spans mentoring, roadmap planning and hands-on work on malware detection and behavioural threat analysis across trillions of daily events.

AWS · Linux

• Ireland
• Remote
• Senior

Security researcher role on CrowdStrike Intelligence's Advanced Research Team, developing automated solutions for large-scale data collection, running Internet-wide scans, operating and extending honeypots, and performing vulnerability research. Involves reverse engineering, patch analysis, and publishing research on the company blog or at conferences, alongside ad-hoc technical support for other intelligence teams.

CrowdStrike · Android · iOS +3

• London
• Remote
• Senior

Deliver expert-level technical support to top-tier cybersecurity customers, owning complex cases from initiation to resolution through multi-vendor troubleshooting, fault isolation and root cause analysis. Act as a designated customer advocate running weekly reviews, QBRs and upgrade planning, while working with Engineering and QA on bug reports and test plans.

Palo Alto Networks · Prisma Access · Cisco Firepower +7

• Cobridge
• On-site
• £45,000 – £55,000 pa
• Senior · manages people
• Permanent

Owns the day-to-day technology environment for an engineering and manufacturing business, covering infrastructure management, systems and database administration, cybersecurity, ERP and global support. Leads and mentors an IT team, runs projects such as system upgrades and software implementations, manages budgets and vendors, and ensures compliance and disaster recovery across UK and international offices.

Microsoft Dynamics AX · Jira · Confluence

• London
• Mid-level

Acts as primary technical responder for premium enterprise customers, autonomously investigating complex threat telemetry and handling live incident response for volumetric DDoS and application-layer attacks. Implements mitigation across OSI Layers 3, 4 and 7 using Cloudflare's security suite, performs packet and traffic flow analysis, and advises customers during active incidents. Requires 24x7 rotating shifts.

Cloudflare · Magic Transit · Magic Firewall +7

• London
• Remote
• Lead

Lead and deliver reactive incident response engagements for clients, managing scoping, forensic investigations and containment of security incidents. Perform host-based analysis across Windows, Linux and macOS, examine firewall, web and database logs, and use tools such as EnCase, FTK, X-Ways, SIFT and Splunk to determine breach scope. Also mentors junior team members and provides remediation guidance to customers.

EnCase · FTK · X-Ways +5

• Cambridge
• Hybrid · 2 days in office
• Mid-level

Partners with developers and product teams to embed quality from the start, designing and maintaining automated test frameworks across API, UI, integration and regression layers. Builds scalable suites into CI/CD pipelines, drives shift-left testing, and contributes to test strategy, code reviews and architecture discussions.

Cypress · Playwright · pytest +7

• Lifton
• £57,000 pa

Supporting the control systems behind food processing, filling and packaging equipment at the Ambrosia Creamery, diagnosing PLC, HMI, SCADA and industrial network faults and driving continuous improvement projects. The site standard is Siemens, with S5 and S7 PLCs and TIA Portal, and the role also covers commissioning, FAT/SAT, obsolescence planning and OT cyber security.

Siemens S5 · Siemens S7 · TIA Portal +2

• Guildford
• Mid-level

Owns cybersecurity and information assurance workstreams, including certification assurance for ISO 27001, CE+ and DCC, Secure by Design reviews of infrastructure, cloud and application designs, and coordination of ITHCs, penetration testing and vulnerability remediation. Also manages supplier security compliance, Security Aspect Letters, spacecraft space licensing security, project security budgets and incident response duties within a defence programme context.

ISO 27001 · NIST SP 800-53 · CE+ +6

• 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
• Lead

Lead the cyber security architecture and design function across a portfolio of complex national-scale programmes, acting as Security Pillar Lead. Shape strategy, lead assurance, oversee cyber operational capability and enterprise architecture, and engage UK Government and private sector stakeholders on security risk and emerging threats.

CISSP · SABSA · CISM

• Edinburgh
• Senior

Technical specialist role in Security Operations investigating complex incidents across cloud, endpoint, identity, email and network environments. Combines intelligence-led threat hunting, detection engineering and AI-assisted analysis, acting as escalation point and translating findings into lasting defensive improvements with internal teams and external providers.

Microsoft Azure · Microsoft Entra · Microsoft Defender +5

• Stirling
• Mid-level

Technical specialist role in Security Operations investigating complex incidents across cloud, endpoint, identity, email and network environments. Combines intelligence-led threat hunting, detection engineering and AI-assisted analysis, acting as escalation point and translating findings into lasting defensive improvements alongside internal teams and external providers.

Microsoft Azure · Microsoft Entra · Microsoft Defender +5

• Whiteley
• Hybrid
• £61,500 – £78,800 pa
• Senior

Designs, develops and maintains manual and automated test scripts and reporting for a flagship National Security programme, using frameworks such as Katalon Studio, Selenium, SoapUI and JUnit. Analyses requirements and designs to build risk-based test approaches, working within hybrid Waterfall and Agile scrum teams alongside software and systems engineers.

Katalon Studio · Selenium · SoapUI +5

• London
• Hybrid
• £80,000 – £120,000 pa
• Senior

Hands-on engineering role embedded in the Incydr product team, working directly with customers on technical health checks, custom integrations and troubleshooting. You get full access to the codebase and deployment tooling to diagnose and ship fixes, using AI coding tools to build purpose-built scripts and integrations. Expect some travel to customer sites, with most engagement remote under a hybrid model.

Incydr · Mihra AI · SCIM