Cyber Security Jobs

Darktrace · London

Joins R&D teams to build and enhance cybersecurity products, providing technical direction across rapid prototyping and structured platform development. Involves advancing malware-defence methodology, mentoring engineers in Python, JavaScript, Rust and C++, and working with Docker, cloud environments and CI/CD pipelines. Hybrid role with two days a week in the Cambridge office.

Darktrace · Cambridge

Conducts independent and collaborative research into large language models, statistical methods and classical machine learning, prototyping ideas and implementing models into the wider software stack. Produces latency- and memory-optimised solutions for deployment on edge devices, working closely with software engineers and security analysts.

airbus · Bristol

Owns the long-term data protection strategy and technical design of resilient disaster recovery architectures across hybrid, multi-cloud, container and on-premise environments. Acts as the highest escalation point for complex recovery failures, evaluating immutable and air-gapped storage while automating backup and orchestration processes.

airbus · Hamburg, Germany

Owns the long-term data protection strategy and technical design of resilient disaster recovery architectures across hybrid, multi-cloud, container and on-premise environments. Acts as the top escalation point for complex recovery failures, evaluating immutable and air-gapped storage while automating backup and orchestration processes.

Appcast Enterprise · London

Customer-facing Solution Architect shaping and winning strategic UK Central Government opportunities, working with account, capture and bid teams from early qualification through contract award. Leads solution development, discovery workshops and architecture reviews across Data & Analytics, Cloud, Cyber, AI/ML and Systems Integration, then supports handover into delivery.

Twinstream Limited · Bristol · £50,000 – £60,000 pa

Hands-on senior role taking operational ownership of a corporate IT estate, managing cloud services, Microsoft 365, Entra ID, networking, endpoint security and automation. Involves leading complex incident resolution, patching, backups and business continuity while mentoring colleagues and working with suppliers alongside the IT Technical Lead.

Framatome · Bristol · £63,120 – £94,680 pa

Combines deep technical cybersecurity expertise with commercial skills to build a local cybersecurity practice and drive client relationships within the UK nuclear sector. Leads market-entry strategy, develops pipelines for consulting and field services, and acts as senior subject matter expert on OT/ICS and critical infrastructure security. Also recruits and develops a local team while aligning with global business lines.

Square One Resources · Coventry · £455 pm

Designs, implements and maintains enterprise network security across on-prem, cloud and hybrid environments, leading Zero Trust and segmentation initiatives. Hands-on with enterprise firewalls, Azure/AWS network security, VPNs and secure remote access, while collaborating with SOC teams on detection and response. Contract role with three days per week on-site in Coventry.

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.

CrowdStrike · London

Designs, implements and operates a global multi-vendor, multi-cloud and hybrid data center network, covering subnetting, VPC peering, direct connects and hub-spoke topologies. Builds IaC and automation tooling (Ansible, Terraform, Python, Go) in CI/CD pipelines and handles complex production troubleshooting plus on-call rotations.

Humanoid · London

Lead product cybersecurity assurance across the HMND 01 humanoid robot platforms, defining security requirements, threat modelling and risk artefacts for safety-critical electromechanical systems. Own TARA, security management plans and remediation actions, drive compliance with IEC 62443, the EU Machinery Regulation and the Cyber Resilience Act, and build a PSIRT process while guiding a cross-functional security team.

Sophos · United Kingdom

Hands-on engineering role managing a modern identity stack across the full lifecycle, from passwordless authentication and adaptive access controls to identity governance and non-human identities. You will configure and operate Microsoft Entra ID, Saviynt and Active Directory directly, integrate applications via SAML, OIDC, OAuth and SCIM, and join an out-of-hours support rota.

eFinancialCareers · London · £105,000 pa

Plan and deliver penetration-testing engagements across IT and OT estates, assessing industrial control systems, operational networks and connected infrastructure, plus cloud, mobile, network, web and API environments. Produce technical and executive reports, present remediation advice to clients, and support internal tooling, methodologies and CREST-accredited training. Work spans energy, wind, nuclear, CNI and manufacturing programmes.

Alexander Mae HR Ltd · Malmesbury · £130,000 – £140,000 pa

A senior leadership role reporting to the CFO, owning the strategic and operational direction of the IT function across a diverse private group. The remit spans technology strategy, AI and emerging tech adoption, data governance, cybersecurity, cloud, infrastructure and service delivery, plus budget, supplier and team leadership. It is distinct for its board-level influence and mandate to define a new technology roadmap rather than inherit one.

Cloudflare · London

Lead the Threat Application Services team within Cloudforce One, owning the Threat Events platform, external Threat Intel APIs, and backend systems that feed IOCs into WAF and Gateway for automated mitigation. Set architectural direction and operational excellence for distributed, high-latency-sensitive services, while hiring and mentoring engineers building agentic threat intelligence tools.