Cyber Security Jobs

CrowdStrike · United States · US$140,000 – US$220,000 pa

Builds and operates core systems for the Falcon Complete team, designing reliable, scalable services that help security analysts triage and remediate threats at scale. Works in Golang, Python, JavaScript, C++, or Java across microservices, data pipelines, Kafka/Kinesis, Docker and Kubernetes, with on-call rotations. Distributed, asynchronous team spanning the US and UK.

CrowdStrike · Germany

Security researcher role on CrowdStrike Intelligence's Advanced Research Team, developing automated solutions for large-scale data collection, operating and extending honeypots, performing vulnerability research, and reproducing emerging vulnerabilities. Involves reverse engineering, Linux/Windows internals, Python tooling, and GenAI/LLM workflows, with published research on the CrowdStrike blog or at conferences.

Amazon · London

Join a global team responsible for discovering, assessing, triaging and driving remediation of vulnerabilities across Amazon's infrastructure, services and applications. The role involves analysing disclosures and exploit code, engineering scalable detection mechanisms, and building automation and tooling, with periodic on-call duties.

83zero · United Kingdom · £550 – £600 pd

Hands-on engineering role deploying, configuring and troubleshooting Prisma Access, DLP, CASB and SSPM within a large enterprise SASE and cloud security transformation. You act as a trusted technical adviser, handling escalations, root cause analysis and data protection policy work alongside cybersecurity, networking and cloud teams.

NCC Group · Remote

Designs, builds and maintains security automations that detect, investigate and respond to cyber threats, working closely with Incident Response to identify improvements and create new playbooks. Delivers scalable automation within the Splunk ecosystem, covering advanced analytics, scripting, new use cases, validation of automation behaviour and documentation, plus mentoring junior engineers.

83zero · London · £90,000 – £100,000 pa

Conducts OT security assessments, audits and risk assessments for clients in energy, manufacturing, oil & gas and pharmaceuticals. Reviews OT networks, systems and controls, identifies vulnerabilities and develops security policies, procedures and roadmaps while advising clients on frameworks such as IEC 62443 and NIST.

Robert Half · Oxford · £25,500 – £29,000 pa

Provide first-line IT support to internal staff, managing and updating tickets while troubleshooting software, hardware and connectivity problems. Set up computers, mobile devices and software, escalate complex issues to senior colleagues, and maintain records and equipment logistics. Office-based with occasional travel to other sites.

QinetiQ · Bristol · £65,700 – £73,000 pa

Lead cyber security vulnerability analysis, audit processes and business risk modelling for defence customers, while shaping cyber exercise scenarios and advising on security posture against NIST and ISO27001 frameworks. The role involves applying MITRE ATT&CK and Secure by Design approaches, working largely on-site at a customer site in Corsham.

TXP · United Kingdom · £440 – £490 pd

Monitor, investigate and respond to cyber security incidents within a Microsoft security environment, using Microsoft Sentinel and the Defender suite. The role covers alert triage, threat hunting, log and telemetry analysis, and creating and tuning Sentinel analytics rules, workbooks and detection use cases. You will also support incident response containment and recovery, produce reports, and work with infrastructure, cloud and application teams to improve SOC processes and detection engineering.

Amtis Professional · Cheshire West and Chester · £50,000 – £55,000 pa

Hands-on role strengthening an organisation's ability to respond to, recover from and learn from cyber incidents. Combines practical system recovery and resilience testing with maintaining Business Continuity, Incident Response and Cyber Recovery plans, plus stakeholder coordination across IT and the wider business. Involves analysing system dependencies, incident reviews and producing resilience documentation.

Amazon · London

Respond to security incidents across AWS cloud services, triaging issues and driving internal teams to timely remediation while balancing technical and business risk. Build internal automation tools and utilities, mentor junior staff, and share on-call responsibilities. Works within AWS Cloud Response, coordinating multi-team responses and publishing guidance for customer-impacting issues.

Maxwell Bond · London · £115,000 – £135,000 pa

Owns security end to end for a confidential investment-data platform and its AI agents, split roughly 60% hands-on product and cloud security and 40% assurance and client-facing work. Sets AWS IAM, encryption and detection patterns, defines agent authorisation and prompt-injection defences, and drives SOC 2, ISO 27001 and AI Act readiness with penetration testing and client due diligence.

QinetiQ · Malvern, England, United Kingdom · £65,700 – £73,000 pa

Technically leads multidisciplinary teams on complex cryptosecurity bids and projects, interpreting user, system and security requirements for crypto systems. Advises on high-grade crypto and key management, analyses algorithms and secure protocols, and engages regularly with customers and stakeholders. Based on-site at Malvern, with travel to customer sites expected.

Astute People · Benfleet

Supports the compliance and integrity of control and information systems at a gas-fired power station, covering security strategy, policies, risk assessments, audits and incident response. Works with the Cyber Security Manager on OT security, ISA/IEC 62443 standards and regulatory frameworks, plus Management of Change and RCA investigations.

Appcast Enterprise · Whiteley · £61,500 – £78,800 pa

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.