Top Cyber Security Jobs in London

Develop and maintain native iOS features for the Nutmeg investment application using Agile practices. Own work from estimation through release and production support, troubleshoot defects, write unit and UI tests, participate in code reviews, and contribute to technical improvements. Collaborate with Product, Operations, and engineering teams while supporting releases, knowledge sharing, monitoring, and continuous improvement of the iOS codebase and development processes.

Drive new customer acquisition and revenue growth across EMEA by exceeding quotas, building prospect pipelines, executing outbound strategies, developing partnerships, and consulting senior executives. The role involves understanding regional markets, accelerating buying processes, and providing product feedback. This is a hybrid London-based position requiring at least two office days per week.

Lead Altana’s Policy & National Security public-sector business globally. Own revenue growth, sales pipeline, forecasting, agency relationships, partner strategy, and complex government pursuits. Shape opportunities with senior stakeholders, guide contracting strategies, coordinate cross-functional teams, and translate policy, budget, and agency signals into product and company strategy. The role requires deep public-sector sales leadership, government procurement expertise, strong networks, and eligibility to obtain and hold a U.S. security clearance.

Lead end-to-end delivery of complex cybersecurity initiatives across financial and energy institutions. Responsibilities include defining project scope and plans, coordinating security and technology workstreams, managing governance, RAID logs, budgets, resources, risks, dependencies, and stakeholder reporting. The role covers IAM, cloud security, endpoint protection, SIEM, application security, vulnerability management, Zero Trust, DevSecOps, and regulatory remediation while promoting responsible AI-enabled delivery and security-by-design.

Manage strategic cybersecurity and data protection vendor partnerships to drive revenue, profitability, and market awareness. Develop partner-led go-to-market strategies, business plans, and commercial programs; identify growth opportunities; enable sales and presales teams; maintain executive-level relationships; manage accreditations; and track revenue, profitability, and strategic KPIs across partner portfolios.

Operate and improve enterprise endpoint security, visibility, zero trust, and network access systems. Responsibilities include incident triage, anomaly investigation, policy tuning, vulnerability remediation, security documentation, cross-functional collaboration, automation with Python and SOAR platforms, and mentoring security engineers. The role supports security investigations and maintains resilient production security systems at enterprise scale.

Monitors and triages security alerts, investigates incidents through resolution, conducts threat hunting, and develops or tunes detection rules. The analyst correlates endpoint, network, cloud, and identity telemetry; uses AI and automation to improve investigations; documents findings and incident reports; collaborates with global SOC and response teams; and helps maintain playbooks while participating in a weekend rotation approximately every five weeks.

Supports pre-sales opportunities by translating customer needs into tailored Cisco services solutions. Partners with Sales and Solution Development Architects on lifecycle and transformation opportunities, RFPs, RFIs, presentations, and business development. Builds customer and internal relationships, explains technical concepts to business and technical stakeholders, and develops expertise across networking, security, cloud, data center, and AI technologies.

The Client Executive manages global enterprise accounts and sells complex technology solutions spanning hardware, software, professional services, supply chain, digital, and infrastructure services. Responsibilities include developing C-level relationships, expanding account opportunities, managing OEM and client partnerships, coordinating inside sales activities, qualifying opportunities, executing complex deals, and positioning networking, storage, virtualization, security, and cloud solutions. The role is an individual contributor with no required travel or direct reports.

Lead strategic customer success and transformation programs for major Celonis clients. Build executive relationships, define value roadmaps, coordinate cross-functional teams, drive platform adoption and measurable business outcomes, resolve escalations, and establish customer centers of excellence. Organize advisory boards, advocate for customer needs, support thought leadership, and mentor internal teams. The role requires extensive experience in customer success, strategy consulting, large-scale transformation, change management, and executive engagement.

Leads technical strategy, solution architecture, delivery, and product development for Altana’s UK policy and national security vertical. Owns capture and pre-sales technical content, customer deployments, security and accreditation obligations, support processes, staffing, and technical team development. Partners with commercial leadership, Platform Operations, Engineering, Product, and Design to deliver SaaS and PaaS solutions in secured and regulated environments.

Leads enterprise proxy, perimeter, and SSE/SASE security engineering across US operations. Designs and operates Zero Trust, identity-aware proxy, secure gateway, egress, segmentation, and cloud interconnect architectures. Owns roadmap execution, governance, remediation, lifecycle modernization, incident management, observability, and resiliency. Supervises engineers, establishes reusable security patterns, coordinates cross-functional delivery, and promotes secure, responsible AI-assisted engineering practices.

Design, develop, review, deploy, and maintain security-focused distributed systems operating at internet scale. Participate in on-call rotations, monitor emerging web application security risks, contribute to product roadmaps, collaborate cross-functionally, and mentor other engineers through technical guidance and knowledge sharing.

Build and maintain detection-as-code, security tooling, and automated response workflows across enterprise, cloud, and product environments. Triage alerts, investigate and respond to cyber threats, conduct digital forensics and threat hunts, support security data lakes and SIEM platforms, and develop AI-first security systems. The role includes on-call participation, collaboration with threat intelligence, pipeline improvements, and mentoring other security engineers.

Designs and presents cybersecurity solutions for customer opportunities, including discovery, solution architecture, proposals, RFP responses, TCO models, business cases, HLDs, and statements of work. Partners with sales, delivery, managed services, vendors, and customers; supports upselling, project handoffs, escalations, repeatable offerings, sales enablement, and customer retention. Maintains security expertise, certifications, and knowledge across identity, network, operations, data, AI, advisory, and managed security services.

Leads Partner Technology Strategists and shapes strategic partners’ technology roadmaps across the Microsoft Cloud. Connects technical investments to sales opportunities, revenue growth, cloud consumption, marketplace outcomes, and customer value. Develops scalable, repeatable partner solutions, prioritizes high-impact opportunities, coaches teams, and builds relationships with partner executives, Microsoft sales teams, solution specialists, and architects.

Own bookings growth across large enterprise accounts in the UK. Develop and execute territory sales plans, generate pipeline, acquire new customers, expand existing accounts, manage strategic opportunities, present complex data-center solutions, and close sales. Collaborate with sales engineers, sales development teams, distributors, VARs, and channel partners to exceed quotas and identify new market opportunities.

Leads OT security monitoring and triage operations, investigates suspicious activity across industrial networks, validates detections, and escalates findings to incident responders and threat hunters. Maintains the Dragos Platform for customers, including asset classification, vulnerability management, detection tuning, and hardening recommendations. Produces incident reports, mentors analysts, collaborates across cybersecurity teams, and develops expertise in ICS protocols, adversary tactics, and industrial threat intelligence. The role includes shift-based coverage and occasional weekend or on-call work.

Lead security incident response and digital forensic investigations, act as Incident Commander, monitor and analyze security events, build scripts and automated workflows (Python), use SIEM and cloud (AWS/GCP) tooling, mentor engineers, coordinate cross-team remediation, participate in on-call rota aligned to UK/EMEA hours.

Design and implement secure enterprise architectures across cloud, hybrid, and on-premise environments for financial institutions. Responsibilities include security strategy, threat modeling, risk assessments, remediation, DevSecOps enablement, Zero Trust architecture, regulatory alignment, AI security governance, mentoring, and security awareness. The role also requires collaboration across technical and business teams, responsible use of AI-enabled security tools, and hands-on experience with IAM, endpoint, application, network, SIEM, and firewall technologies.

Leads security engineering initiatives across cloud and on-premise environments. Designs enterprise security controls, embeds SAST, SCA, DAST, and container scanning into CI/CD pipelines, conducts vulnerability assessments and security audits, develops security standards and data protection strategies, and promotes secure SDLC practices. The role also involves security automation, responsible AI-enabled workflows, Zero Trust implementation, mentoring, and collaboration with engineering and client teams.

Lead enterprise security engineering across cloud and on-premise environments. Design security controls, integrate SAST, SCA, DAST, and container scanning into CI/CD pipelines, conduct vulnerability assessments and audits, develop security standards and data protection strategies, and promote secure development practices. The role also involves responsible use of AI-enabled security workflows, human review, mentoring, and collaboration with engineering and financial-services clients.

Owns technical strategy and customer outcomes for enterprise AI adoption across ChatGPT Enterprise, the OpenAI API, Codex, and agentic solutions. Leads executive discovery, AI architecture, technical evaluations, prototypes, production-readiness planning, adoption roadmaps, and measurable business impact. Partners with sales, engineering, deployment, security, product, research, and implementation teams while advising CTO, CIO, CISO, and engineering stakeholders.

Leads OpenAI’s Applied AI Architect team across Europe, developing technical strategy and operating models for strategic enterprise customers. Oversees customer journeys from discovery through production adoption, coaches senior architects, manages resources, advises executives, and coordinates Sales, Product, Engineering, Research, Security, Legal, Privacy, and deployment specialists. Ensures secure, scalable architectures, responsible AI adoption, measurable customer outcomes, portfolio health, and expansion opportunities.

Lead hands-on product security architecture across GitLab, including design reviews, threat modeling, systemic risk remediation, security standards, prototypes, and reusable developer guardrails. Partner with engineering and product leaders, secure distributed systems and software supply chains, guide AI coding tool security, mentor security engineers, and influence technical direction through proactive architecture and clear communication.