Top Cyber Security Jobs in London

Build and maintain backend services for Customer Engineering: triage and fix customer-reported bugs, deliver small feature requests, create automation and tooling to reduce manual work, debug microservices and event-driven pipelines, integrate identity providers and data security platforms, instrument and monitor systems, and partner with customers and stakeholders to prevent recurring issues.

Support multinational security operations in high-threat environments by securing checkpoints, conducting convoy operations, protecting humanitarian efforts, delivering relief supplies, and coordinating with NGOs, government agencies, and community leaders. The role requires combat experience, weapons proficiency, active-duty military experience, and the ability to operate alongside multinational teams in conflict zones.

Own international sales operations for EMEA & APJ: new-hire onboarding, territory assignments, SFDC hygiene and automation, reporting (ramp, activity, SPIFFs), POV board ops, and ad-hoc international operational requests.

Serve as the primary customer advocate to drive adoption, ROI, retention and expansion for enterprise email security customers. Build executive relationships, deliver business reviews, maintain success plans, monitor health, triage escalations, and coordinate cross-functional teams to resolve issues and surface product feedback to improve the platform.

Lead security assessments and controls across cloud-hosted applications, APIs, mobile (Flutter), CI/CD, and infrastructure. Implement and harden shared security tooling (dependency/secret/static/container scanning), review IAM and privileged access, support incident readiness and monitoring, evaluate SRE/recovery changes for security impact, and coordinate remediation with system owners. Establish security policies, automation, and review triggers to integrate practical controls into engineering workflows.

Manage a portfolio of UK & Ireland customers post-sale to drive onboarding, adoption, retention, and expansion. Build success plans, lead business reviews, monitor account health, identify upsell opportunities, and advocate customer needs to Product and Support. Track success metrics like NRR, churn, adoption, and CSAT.

Pre-sales and post-sales technical lead for UK and Ireland: run discovery, design demos and PoCs, own onboarding and implementation, train and support reseller partners, and identify optimization opportunities to drive new logo acquisition and customer success.

Lead design and interpretation of empirically rigorous evaluations of AI systems on virology-relevant tasks. Translate ambiguous biological risk questions into testable evaluations, analyse results and uncertainties, advise on mitigations and evidence standards, produce briefings for senior decision-makers, and collaborate across researchers, policy, and biosecurity communities to ensure technically rigorous, policy-relevant outcomes.

Lead and expand the VAR channel strategy in EMEA, managing partner relationships, driving revenue, and collaborating with sales and marketing teams.

Build and own a multi-tenant platform connecting enterprise customers and sovereign deployments to inference infrastructure. Responsibilities include authentication, tenant isolation, quotas, rate limiting, usage metering, entitlements, public inference APIs, SSO, access controls, audit logs, data residency, and security testing. The role requires strong Python and backend or platform engineering expertise, API design experience, and familiarity with billing, credits, reconciliation, regulated environments, and enterprise identity systems.

Develop and maintain research-oriented software and infrastructure for evaluation and model hosting. Implement features for Inspect, support open-weights model hosting, design custom research infrastructure, collaborate with researchers, and debug evaluation systems. Work spans cloud infrastructure, MLOps tooling, and open-source contributions.

The Red Team conducts research to identify vulnerabilities in AI systems, collaborating with AI companies and governments to inform policy and improve safety measures.

The Enterprise Account Executive will manage the full sales cycle, build a solid pipeline, and drive revenue growth for Oasis Security.

As a Regional Channel Account Manager, you will develop strategic partnerships, drive regional revenue, and manage complex partner relationships in the cybersecurity sector, using AI tools for optimization and maintaining accurate sales forecasts.

The Regional Sales Manager will generate new customer opportunities, manage client relationships through the sales cycle, and drive business growth. Responsibilities include prospecting, closing deals, maintaining client relationships, and using CRM systems.

Leads research and client advisory on emerging AI data security and AI ecosystem data management trends. Develops research reports, presentations, briefings, and tailored recommendations for technology executives and product leaders. Analyzes technologies, vendors, markets, and competitive landscapes; builds expert networks; delivers client inquiries and speaking engagements; and collaborates with analysts and service teams to ensure high-quality research. The role requires deep cybersecurity and AI data expertise, strong writing and presentation skills, executive presence, and up to 25% travel.

Own product marketing strategy for cybersecurity MDR/XDR solutions, including positioning, value propositions, go-to-market execution, sales enablement, content strategy, competitive intelligence, and product launch support. Translate complex cybersecurity capabilities into compelling business value for technical and business buyers, collaborate across Product, Commercial, and Security Operations, and measure messaging effectiveness. The role requires deep cybersecurity market knowledge, strong communication, stakeholder management, and fluent English and C2 German.

Own the strategy and roadmap for Managed Detection and Response, Endpoint Detection and Response, and Incident Response products. Lead customer discovery, translate needs into product opportunities, and collaborate with engineering, design, security operations, marketing, sales, and customer success. Manage EDR and MDR vendor relationships, support go-to-market launches, improve product processes, and drive innovation based on cybersecurity trends and data.

Lead Pantheon's security operations strategy and roadmap, including SIEM/SOAR architecture, threat detection, incident response, threat intelligence, automation, vulnerability and abuse management, and operational resilience. Own security operations compliance for GDPR, NIS2, SOC 2, PCI DSS, and NIST CSF. Lead major incident response, executive reporting, cross-functional initiatives, and mentorship while remaining hands-on with cloud-native security, detection engineering, and security automation.

Greet and manage visitors as the primary front-of-house contact, maintain an organized reception area, operate the visitor management system, support events and badging, handle public queries, and provide administrative support to safety & security. Deliver high hospitality standards, assist hosts and colleagues, and complete additional projects as assigned.

Manage and structure complex research programmes in AI security for cyber and autonomous systems. Translate open-ended research questions into deliverable plans, track delivery, remove blockers, engage technical government partners, and set operational rhythms for a high-performing team working on frontier-model evaluations.

Patrols university campuses on foot and by vehicle, assists with control-room operations, responds to fire and intruder alarms, and provides immediate support during incidents or crimes. The role includes welfare support, signposting to agencies, and reassuring staff and students. Candidates need strong communication and listening skills, computer literacy, composure under pressure, attention to detail, and a full driving licence.

Lead Telecoms Security Act compliance and Ofcom engagements, validate technical evidence, assess risks and controls, align frameworks (NCSC CAF, ISO27001), support governance, and oversee third-party security and contractual obligations across engineering, security, and operations.

Drive new business in the DACH region through cold outreach, demoing Keeper products, managing the full sales cycle from prospecting to close, maintaining accurate Salesforce pipeline, and consistently meeting quota while communicating in German and English.

Support and advance the application security program: review designs and architecture, advise engineering/DevOps on secure SDLC practices, run static/dynamic scans and manual assessments, triage external pentest and bug-bounty findings, and drive security process improvements.