Cyber Security Jobs

• Virtual Location - Uk
• Senior
• Permanent

Leads complex security testing engagements end-to-end across interconnected AWS microservice architectures, performing penetration testing and AI-augmented source code review. Investigates high-consequence risk hypotheses to documented conclusions, builds reusable mechanisms like fuzzers and detection rules, and mentors engineers while setting the team's peer-review bar.

AWS · Agentic AI

• United Kingdom - Field (Onfido)
• Senior

Owns test planning, coordination and execution within a cross-functional identity verification product team, covering web, mobile, backend services and ML-powered products. Builds maintainable automated test frameworks and suites, supports acceptance and exploratory testing, and mentors colleagues while improving CI/CD pipelines and release feedback loops.

Playwright · Cypress · Selenium +12

• France - Field (Onfido)
• Senior

Owns planning, coordinating and executing test and quality activities within a cross-functional identity verification product team, covering web, mobile, backend and ML-powered journeys. Builds maintainable automated test frameworks and suites, mentors colleagues, and leads test engineering initiatives across teams. Combines automation with exploratory testing and works with TypeScript, Ruby, Python, Playwright, Cypress, Selenium and CI/CD pipelines.

Playwright · Cypress · Selenium +7

• London
• Senior
• Permanent

Hands-on security advisory role protecting pre-release film and series content across the production lifecycle, from editorial setup and Aspera transfers to cloud storage and on-set networking. Also maintains AWS infrastructure, builds Python automation for access governance and audit reporting, and researches emerging threats such as forensic watermarking and generative AI misuse.

AWS · Aspera · Python

• Prudhoe
• Hybrid
• £35,000 – £45,000 pa
• Permanent

Hands-on security operations role covering alert triage, incident response and root-cause analysis, alongside tuning SIEM, EDR/XDR and monitoring tooling to improve detection and cut false positives. You will also drive security automation, deliver improvement projects and act as liaison with a managed SOC and internal infrastructure, cloud and application teams.

Microsoft Sentinel · Microsoft Defender XDR · CrowdStrike +6

• United Kingdom
• Remote
• Lead

Deliver white-glove onboarding and ongoing technical guidance for Managed XSIAM customers, analysing security data to improve detection coverage, alert quality and tenant hygiene. Lead customer touchpoints and security reviews while partnering with Unit 42 SOC engineering, Product and MDR teams to build automation workflows and scalable service frameworks.

XSIAM · Unit 42

• 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

• Southampton
• Remote
• £75,000 – £85,000 pa
• Senior
• Permanent

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.

DevOps

• 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
• 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
• £65,000 – £79,000 pa
• Senior · manages people
• Permanent

Hands-on security leadership role managing the technical cyber security environment and SOC, owning policies, ISO 27001 implementation and incident response. Works with the Head of IT on the Cyber Security Roadmap, manages a third-party SOC and one direct report, and uses tools such as Rapid 7, Sophos MTR, Solarwinds and ServiceNow. Based at Marylebone with travel across the Chiltern network and CTC clearance required.

Rapid7 · Sophos MTR · SolarWinds +4

• London
• Hybrid
• Lead · manages people

Lead a newly formed backend team owning several key products, including an integration layer for SIEM platforms, a system engaging conversational scammers at scale, and email analysis for phishing detection. Split time between hands-on engineering (30-50%) and managing a delivery roadmap, modernising legacy platforms while commercialising new ones.

Go · OpenSearch · MongoDB +5

• Winchester
• Director · manages people

Lead the Enterprise Architecture function, owning architecture principles, standards, governance and assurance across business applications, SaaS, data, cloud, infrastructure, networks, security, AI and OT. Acts as senior technical authority, chairs the Architecture Review Board, and manages internal architects plus third-party partners.

SaaS · Operational Technology

• London
• US$215,000 – US$225,000 pa
• Lead

Lead research, design and evaluation of detection models identifying automated, fraudulent and malicious activity across Internet-scale traffic. Own the detection measurement framework for noisy or delayed ground truth, mentor others, and drive cross-functional detection strategy with ML, data and product teams.

Python · SQL