Top Cyber Security Jobs in London

Monitor CCTV, access control systems, alarms, and site activity; coordinate responses with security officers, management, and external agencies; maintain incident logs and audit records; support emergencies, evacuations, risk assessments, and operating procedures; and ensure confidentiality, data protection, and professional customer service standards.

Maintain a visible security presence at a London Bridge site through patrols, access and egress monitoring, pass checks, CCTV and alarm monitoring, incident reporting, and emergency response. Support staff, visitors, and contractors with professional customer service, maintain fire routes and exits, and provide occasional loading bay assistance. The role requires day and night shift flexibility, strong attention to detail, and valid SIA, First Aid, and Fire Marshal qualifications.

Provide strategic procurement and contract advice for public and private sector clients on major projects and programmes. Responsibilities include leading end-to-end procurement, tender preparation, supplier engagement, contract award, post-contract management, commercial modelling, and supply chain intelligence. The consultant will support bids, business development, team leadership, and client stakeholder management across infrastructure, utilities, defence, renewables, and other sectors.

Leads product strategy and execution for Trust & Safety and security transformation, converting bespoke moderation workflows into scalable, data-driven products. Owns agentic moderation roadmaps, data assets, Big Tech platform requirements, productization, and bespoke project delivery. Partners with cross-functional teams to develop autonomous investigation and enforcement systems that operate at enterprise scale.

Leads on-site security, accreditation, and access control operations across approximately seven international SailGP events per season. Responsibilities include venue security planning, supplier and staffing oversight, zone integrity, incident command, access systems, risk registers, documentation control, authority coordination, budget management, compliance, reporting, and continuous improvement. The role is the venue-level operational decision-maker and requires significant international travel from the London HQ.

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.

Manage and modernize Sompo’s global information security program across thousands of users, developers, IT staff, network devices, and physical and cloud locations. Responsibilities include maintaining security controls, vulnerability management, security alerting, incident response, SDLC security integration, security communications, regulatory alignment, risk prioritization, KPI development, and leadership of hybrid security teams.

Provides security, surveillance, patrols, access control, incident response, emergency management, and customer service at a shopping centre. The officer monitors CCTV, liaises with the control room and site teams, records incidents, manages unauthorised access, follows radio and site procedures, and maintains a safe environment for visitors, tenants, and staff.

Provides professional security and customer service at a sports and entertainment site. Responsibilities include patrols, access control, surveillance, incident and emergency response, control-room communication, reporting, visitor assistance, and maintaining site safety. The role requires adherence to radio and notebook procedures, completion of training, and occasional additional shift coverage.

The Security Officer maintains a safe, secure, and welcoming shopping-centre environment. Responsibilities include patrols, surveillance, access control, incident and emergency response, visitor assistance, control-room communication, security logging, and reporting unsafe or unauthorized activity. The role requires maintaining radio procedures, completing training, supporting colleagues, and covering additional shifts when needed. Candidates must hold valid SIA Door Supervisor, SIA CCTV, First Aid at Work, and ACT Awareness certifications.

Provides site security through visitor assistance, patrols, access control, emergency response, incident reporting, and accurate record keeping. Works with duty management and environmental services teams to maintain a safe, professional environment. Requires an SIA Door Supervisor license, first-aid certification, BS7858 vetting eligibility, strong communication skills, attention to detail, initiative, flexibility, and the ability to work independently or collaboratively across rotating day, night, and weekend shifts.

Provides physical security at data centers by protecting people and property, monitoring CCTV, controlling access, patrolling premises, responding to incidents, preparing reports, and liaising with management. The role requires shift availability across weekdays, weekends, days, and nights, along with customer service, communication, initiative, and basic IT skills.

Own and improve cybersecurity domains across endpoint, network, identity, cloud, vulnerability, and incident response functions. Administer and optimize CrowdStrike, Zscaler, and other security tools; investigate threats; prioritize vulnerability remediation using threat intelligence and attacker behavior; improve Azure and Microsoft 365 security controls; support incident response; and collaborate with technical and business stakeholders to reduce cyber risk.

Leads physical security technology projects from planning through implementation, managing timelines, budgets, vendors, and cross-functional stakeholders. Supports access control and CCTV system administration, monitoring, troubleshooting, maintenance, and optimization. Drives automation and continuous improvement, evaluates emerging technologies such as AI and cloud security, and develops scalable operating standards. Collaborates with IT, risk, compliance, real estate, and global business teams while presenting recommendations to senior leadership.

Lead technical and strategic security engineering services for major construction and fit-out projects throughout RIBA stages. Responsibilities include risk assessments, mitigation strategies, operational requirements, security master planning, physical security design, electronic security systems design, and counter-terrorism guidance covering hostile vehicle mitigation, blast protection, and ballistics. The role also involves business development and security consultancy expertise.

Lead secure built-environment and construction projects from initiation through completion, managing scope, schedule, budget, quality, contracts, security compliance, multidisciplinary teams, and client relationships. The role includes mentoring junior staff, overseeing deliverables, supporting bids and business development, managing NEC contracts, and working with government clients in secure environments. DV clearance or eligibility is required, with travel to UK and international project locations.

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 technical and strategic security engineering for major building construction and fit-out projects. Responsibilities include risk assessments, mitigation strategies, operational requirements, security master planning, physical security design, electronic security systems design, and counter-terrorism guidance covering hostile vehicle mitigation, blast, and ballistic risks. The role also requires business development, security consultancy expertise, and collaboration with specialist engineering teams.

Generate net-new pipeline across EMEA by researching enterprise accounts and engaging senior security and IT decision-makers through cold calling, multi-channel prospecting, and personalized outreach. Qualify customer security requirements, overcome objections, and schedule discovery meetings for Account Executives and Security Specialists. Build knowledge of Cisco Security solutions, enterprise buying cycles, and sales methodologies while developing toward future Account Executive or Specialist roles.

Design, build, and maintain SOAR playbooks and automated incident-response workflows; integrate security, IT, and cloud systems; deploy cloud security infrastructure via IaC; apply AI/LLM tools to security automation; collaborate with SOC, detection engineering, and IR teams; measure and report automation performance and ROI to leadership.

Supervise daily security operations for a corporate facility, manage and support security personnel, conduct patrols and ID checks, respond to emergencies, handle conflicts, document incidents, communicate with staff and visitors, and maintain safety and service standards. The role requires a valid SIA licence, at least one year of security supervision experience, strong leadership and communication skills, IT literacy, and proficiency in Excel and Outlook.

Provides front-of-house security and customer service in a corporate commercial site. Responsibilities include access control, CCTV and fire alarm monitoring, internal and external patrols, incident and emergency response, security reporting, hazard identification, and communication with staff, visitors, tenants, contractors, and colleagues. The role requires professionalism, vigilance, sound judgment, conflict management, and flexibility to work rotating day and night shifts.

Manage government and real estate projects by conducting research, establishing project processes, producing plans, monitoring progress, documenting changes, preparing communications and reports, and coordinating with clients, contractors, designers, and other stakeholders. The role requires strong communication, problem-solving, strategic thinking, construction or real estate knowledge, CDM and site health and safety awareness, travel across London and the South East, and the ability to obtain security clearance.

Own IT security and compliance for a growing consultancy, including ISO certifications, Cyber Essentials, audits, risk reviews, GDPR obligations, endpoint security, access management, incident response, laptop lifecycle management, security awareness, client questionnaires, and business continuity testing. Maintain audit readiness, close security findings, manage compliance certifications, and provide trusted monthly reporting to leadership.