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Security jobs in London, United Kingdom

174 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.

Security jobs in London at a glance

Open roles
174
Remote
10%
Posted in the last 30 days
48
Advertised pay, middle half
£100K – £155Kmedian £139K · about $185K

From the 26 security jobs here that state yearly pay in GBP: the top of each advertised range. Updated nightly.

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1–20 of 174 jobs

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  • Flo Health · London, England, United Kingdom

    HybridLead / staff£100K – £130K a yearSecurity

    Millions of people trust Flo with their most personal health data. As our Security Architect, you’ll make sure we deserve that trust. This is a hands-on individual contributor role. You’ll work side by side with engineering, product and platform teams to shape secure…

  • Pennylane SAS · Paris, Ile de France, France +5

    RemoteFull-timeSeniorSecurity

    Are you looking to have an impact on the daily life of millions of entrepreneurs in France (and tomorrow in Europe)?

  • Shield AI · London, England, United Kingdom

    On-siteFull-timeManager£100.9K – £151.3K a yearSecurity

    Establish and manage Shield AI's UK security programme across personnel, physical, information, cyber-enabled, and operational security.; Lead readiness for Facility Security Clearance (FSC) and Industry Personnel Security Assurance (IPSA), including gap assessments,…

  • DeepL · London, England, United Kingdom

    HybridFull-timeSecurity

    DeepL is not just a translation tool; we are building the Operating System for Global Communication. We are the rare AI company that builds the entire stack in-house: from training next-gen LLMs on our own NVIDIA DGX SuperPODs to delivering real-time Language AI to over 300…

  • WRITER · London, England, United Kingdom

    HybridFull-timeMid levelSecurity

    This is where security meets innovation at enterprise scale. As a security engineer, applications at WRITER, you'll be building the security foundations that protect the AI systems powering some of the world's most recognizable brands. You'll work at the intersection of…

  • WRITER · London, England, United Kingdom

    HybridFull-timeMid levelSecurity

    Join WRITER's security team as a staff detection and response engineer and help protect the AI infrastructure that's transforming how the world works. You'll build sophisticated detection systems that identify attacks targeting our AI platform, training data, and model…

  • OLIX · London, England, United Kingdom

    On-siteFull-timeSenior£139K a yearSecurity

    We build infrastructure for frontier AI, and we use AI to build it. Every team at OLIX works with AI tools, coding harnesses, models and agents, and we intend to use them more. We are hiring an AI Security Engineer to make that adoption safe without slowing it down.

  • OLIX · London, England, United Kingdom

    On-siteFull-timeSenior£139K a yearSecurity

    We are hiring a Security Engineer to own the security of the systems every OLIX employee depends on: identity, devices, email, collaboration tools and our cloud estate. Our IP is the company, and protecting it is a hands-on engineering job.

  • Quantexa · London, England, United Kingdom

    HybridFull-timeDirectorSecurity

    Do you strive to make a difference in the National Security and Defence sector? Are you driven to support the innovation and transformational change that will enable UK Defence to utilize its data fully, unleashing its power at scale and speed, and ensuring that operational and…

  • Checkout.com · London, England, United Kingdom

    On-siteFull-timeEntry levelSecurity

    As a Junior Application Security Analyst in the Information Security team, you will help secure Checkout.com’s software applications throughout the Secure Software Development Lifecycle (SSDLC). You will work closely with developers and product teams to integrate security early…

  • Kerv · London, England, United Kingdom

    HybridEntry levelSecurity

    You’ll be part of the Network Security/Service Desk Operations team at Kerv Connected Cloud.

  • GRC Engineer

    5 days ago

    incident.io · London, England, United Kingdom

    HybridFull-timeSecurity

    Being a GRC Engineer at incident.io means turning compliance from spreadsheets and screenshots into something that just runs, so “can you prove it?” gets answered before anyone asks.

  • Monzo · Cardiff, Wales, United Kingdom +2

    RemoteTemporaryManager£76.5K – £95K a yearSecurity

    Leading projects across our security programme, which has previously included third-party security, governance and vulnerability management.; Representing Security in projects across Monzo, including product launches, and helping teams identify and manage security risks.;…

  • Cohere · Toronto, Ontario, Canada +4

    RemoteFull-timeSeniorCA$260K – CA$310K a yearSecurity

    Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems.

  • VCCP Group LLP · London, England, United Kingdom

    SeniorSecurity

    We are seeking a highly motivated and experienced Information Security Analyst to join our growing IT team. This role is crucial in maintaining and enhancing our security posture, protecting our valuable data assets, and ensuring compliance with industry best practices and…

  • Griffin · London, England, United Kingdom

    RemoteFull-timeSecurity

    The Craft function has seven small, cross-functional engineering teams - each with engineers, an engineering manager, and a product manager, working closely with designers.

  • Pleo · London, England, United Kingdom +6

    HybridFull-timeLead / staffSecurity

    We're looking for a Staff Security Operations Engineer to join our Cybersecurity team at Pleo. In this role, you'll define and deliver the SecOps roadmap, building the detection, response, and investigation capability that protects a fast-growing fintech. If you're excited…

  • Gibson Dunn · London, England, United Kingdom

    Mid levelSecurity

    Serve as a primary escalation point for security events; Serve as an SME for event/incident detection and response; Analyze and respond to security events found internally or via the firm’s Managed Security Service Providers; Review security context alerts and logs using the…

  • United Talent Agency · London, England, United Kingdom

    On-siteFull-timeMid levelSecurity

    Support security design and architecture reviews for new and existing products, including web, mobile, and cloud-based custom applications, and provide clear, actionable recommendations.; Partner with product and engineering leadership to define product security requirements,…

  • Mistral · Paris, Ile-de-France, France +1

    Full-timeSecurity

    Mistral AI is seeking Applied Scientists to build frontier cybersecurity models. You will develop SOTA models across different domains of cybersecurity, from vulnerability analysis to incident response and remediation. You’ll build the environments, training-data pipelines, and…

Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.