133 jobs for “Cyber Security Analyst”
CrowdStrike Romania
Investigates emerging malware and cyber threats across the full attack lifecycle, validating Falcon's detection coverage and distinguishing genuine threats from background noise. Works with Threat Research, Engineering, Data Science and Red Team to turn findings into product improvements, and supports external security testing programmes such as AV-Test and SE Labs.
Sophos United Kingdom
Owns the strategy, roadmap and execution for the Endpoint Windows Platform, translating OS and security requirements into product priorities. Partners closely with Engineering, Microsoft and cross-portfolio teams on agent architecture, performance and platform change management, and supports go-to-market enablement.
Sophos United Kingdom
Leads incident response engagements for customers hit by cyberattacks, directing a team of consultants, running kick-off and daily update calls, and delegating forensic tasks. Handles multiple ransomware and BEC investigations concurrently, performing root cause analysis and producing executive-summary reports mapped to MITRE ATT&CK.
CrowdStrike Germany
Internship on CrowdStrike's Technical Analysis Cell, researching nation-state and criminal intrusions through reverse engineering of malware and tooling. The role involves building automation for malware analysis, creating host- and network-based detection signatures, and producing finished threat intelligence reporting for customers.
Palo Alto Networks London
Technical pre-sales role covering the UK&I region, driving the technology evaluation stage of the sales cycle for the Idira Identity Security Platform. You will run solution demonstrations, architecture reviews and customer proof-of-concepts, designing Zero-Trust access approaches for human and non-human identities across cloud and datacenter environments, and mentoring other solutions engineers.
Palo Alto Networks London
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.
ECS Resource Group Newbury £450 – £500 pd
Security architecture and independent assurance role on a large-scale telecoms programme, focused on Privileged Access Management and securing administrative access to critical Network Management Systems. You will review network and security designs, assure HLDs, LLDs, PoCs and test strategies, and advise on segmentation, least privilege and secure management access. Requires strong IP networking (MPLS, VPNs, VRFs) plus AAA, TACACS+, MFA and RBAC expertise.
Creideas Thame £600 – £850 pd
Part-time consultant guiding a client's migration from traditional data centres to AWS, acting as an escalation point and mentor for a small team of engineers. Works closely with the CISO on security reviews and strategy, applying SIEM, EDR and vulnerability management skills. Mostly remote with occasional in-person catch-ups.
Circle Recruitment Reading £70,000 – £100,000 pa
Deliver practical cyber security advice to clients across complex IT and OT environments, managing engagements and building trusted relationships with senior stakeholders. Assess information security risks, review controls and apply frameworks such as ISO 27001, NIST CSF and NCSC CAF, while progressively taking responsibility for OT security engagements.
Experis United Kingdom £70,000 – £90,000 pa
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.
Immersive United Kingdom
Designs, builds and tests cloud security labs, challenges and gamified learning content covering AWS, Azure and GCP, working with the Principal Cloud Security Engineer and the wider Product and Content teams. Involves researching cloud SIEMs, Kubernetes, CSPM and Terraform to create realistic attack and defence simulations for security professionals.
4Square Recruitment Ltd London £40,000 – £50,000 pa
Build and maintain secure web applications for a cyber security consultancy, working across the stack with React on the front end and Node.js REST APIs on the back end. The role emphasises secure development practices, OWASP principles and vulnerability remediation, with ownership of features and input into technical decisions.
Ex-Mil Recruitment Ltd Southampton £75,000 – £85,000 pa
Principal-level technical security lead on a high-assurance UK defence programme moving from MVP towards operational capability. The role covers secure-by-design architecture, cross-domain information exchange, cyber risk and assurance, IAM, cryptography, cloud and network security, working with solution architects, DevOps and assurance teams. Distinct for its defence focus and ex-military requirement.
Tank Recruitment United Kingdom £80,000 – £90,000 pa
Designs and reviews security architectures across cyber, cloud and enterprise environments for defence customers, acting as a trusted technical adviser. Develops secure AWS or Azure cloud architectures, produces assurance documentation and designs, and travels to customer sites to engage stakeholders. Requires live SC clearance and CISSP, with a genuine voice in shaping the consultancy's security offering.
TRIA United Kingdom
Build a new cyber GRC capability from the ground up within a growing Group Security function, reporting to the Head of Cyber Security, Compliance and Risk Management. You'll design the security controls framework, develop risk methodology and KRIs/KPIs, lead Cyber Essentials and ISO 27001 compliance, and manage audit and third-party assurance. Distinct for its greenfield ownership and Board-level reporting remit.
