76 to 100 of 158 Senior Security Engineer Jobs in London

Scopely in London is seeking a Senior Identity Security Engineer to join our Information Security team on a remote basis or hybrid basis if located in Barcelona. You will build identity controls that reduce excessive privilege and protect critical operations across employee, player, business partner ...

Norton Rose Fulbright in London is seeking a Senior Information Security Engineer to secure cloud platforms, cloud-native services, and AI solutions. You will protect identities, data, applications, and integrations across Azure, AWS, and SaaS environments, translating security requirements into practical, scalable controls. The role combines … hands-on cloud security engineering with governance, leading assessments, improving posture, and automating validation for complex enterprise environments. #J-18808-Ljbffr ...

Blockchain Ventures is seeking a Senior Infrastructure Security Engineer to ensure systems safety and security. This role involves designing security measures across various environments and collaborating with engineering teams for CI/CD integration. The ideal candidate will have over 4 years of relevant experience, particularly ...

About the Role Senior Platform Engineer – Linux/Tooling/Security Our world-leading Time & Frequency department are seeking a SeniorPlatformEngineer specialising in Microsoft infrastructure and Linux system administration. This is an exceptional opportunity to join the global authority in precision timing at a defining moment … society – and your leadership will help ensure they remain secure, reliable and robust even if global navigation satellite systems fail. Key Responsibilities As a Senior Platform Engineer specialising in Linux, Tooling, and Security , you will help design, deliver, and support secure infrastructure services across complex enterprise ...

Senior Infrastructure Security EngineerLondon – Industry leading compensation – HybridA high-performance trading firm is expanding the team responsible for the resilience and protection of its internal technology estate. This is a hands-on engineering role for someone who understands how Windows behaves beneath the surface and can turn that … knowledge into practical security improvements. You will work across infrastructure, identity and endpoint security, building solutions rather than simply operating products. The environment is technically demanding, highly automated and designed around reliability, so the focus is on controls that are measurable, maintainable and effective at scale. What ...

Senior Infrastructure and Cloud Security Engineer (m/f/d) London About ICE Services ICE Services is a music technology company built by rightsholders, for rightsholders. We simplify the complexities of the music royalty chain through an innovative suite of licensing, processing, and copyright services, enabling … over €5bn distributed to date. We’re based in the UK, Germany, and Sweden. About the Role As we build out the IT Security function, we have determined the need for a resource with a specific remit of securing the cloud infrastructure used, both across the production and corporate ...

BlueVoyant is seeking a Senior Security Content Engineer to join the Threat Fusion Cell in a fully remote role. You will develop detection logic, automation, and visualizations to deliver expert security insights for clients, collaborating with internal teams and customer counterparts. Responsibilities include enriching signals, building ...

Anaplan is seeking a Security Engineer III in London to design, build, and improve capabilities for detecting, investigating, and responding to threats. You will operate at the intersection of engineering and security operations, shaping detections, automation, and incident response across cloud, endpoints and identities. The role covers ...

Markets is looking for an experienced Senior Network & Security Engineer to join our Technology team. This role plays a key part in designing, building and supporting our global network infrastructure, ensuring high performance, resilience and security across on-premise and cloud environments. You will work across … optimisation Monitor network performance, capacity and availability, providing proactive support and troubleshooting Implement new network services in line with internal policies, standards and security requirements Identify, advise on and remediate network and security risks Maintain secure VPN connectivity with external partners, ensuring alignment with current best practices Perform ...

Hamilton Barnes is seeking a Security Engineer in Greater London to join a fast-moving, startup-like environment. The role involves hands-on code reviews, vulnerability testing, and securing internal tools while collaborating with engineering and leadership to implement practical security measures. The ideal candidate will … RBAC, MFA, SSO, and least-privilege policies, lead security awareness initiatives, and build secure development practices across the organization. #J-18808-Ljbffr ...

Gravitas Group in the United Kingdom seeks a Cyber Security Engineer to join our Proactive Security team, focusing on building security tech stacks to mitigate threats with offensive and preventive measures. You will develop threat models, manage SIEM systems, and implement detection use cases while collaborating … with incident response to protect information assets in a hybrid UK workplace. The role demands strong scripting (PowerShell, Python), cloud security knowledge across Azure/AWS/GCP, and #J-18808-Ljbffr ...

Oritain is hiring an Infrastructure & Security Engineer to own the security and infrastructure foundations that support our growth. You will secure cloud, identity and network environments, drive ISO 27001 renewal, Cyber Essentials, NIST and CMMC alignment, and lead AI-enabled security initiatives across Microsoft … Azure. In a senior, hands-on capacity, you will shape plans, coordinate cross-team efforts, and guide security engineers, SOC interactions, and audits, while delivering secure, #J-18808-Ljbffr ...

Wiggli in Heathrow is seeking a Senior Fire & Security Engineer with proven experience across fire alarms, intruder alarms, CCTV and access control. You will install, commission, service and fault-find across commercial and residential projects, taking responsibility for delivering high standards and on-time delivery. The role ...

Senior Data Engineer/Tech Lead Defence & National Security Location: London Hybrid (23 days on-site) Salary: £60,000£72,000 + 10% bonus Eligibility: Sole British nationals only Company Overview An opportunity to join a leading digital, cyber and intelligence organisation delivering complex technology solutions across … data into actionable insights, supporting government and defence customers operating in some of the most demanding environments. Role Overview We're looking for a Senior Data Engineer/Tech Lead to take ownership of data engineering delivery across complex defence and national security programmes. Working alongside data ...

Mizuho EMEA is seeking a Cyber Security Engineer at the Assistant Vice President level to advance threat detection, threat hunting, and security automation within our Proactive Security team in London. The role emphasizes building and refining security tooling, SIEM/EDR configurations, and SOC collaboration. ...

Arcus Search is seeking two Senior Security Engineers focused on mobile application security to raise the security bar across our mobile and backend platforms. This hands-on role collaborates with product managers and engineering teams to identify, design, and implement effective security controls throughout … development lifecycle. Ideal candidates have proven experience in application security or mobile engineering, knowledge of mobile-to-API interactions, and hands-on ability to work #J-18808-Ljbffr ...

Cisco Systems is looking for a Tetragon Security Engineer in Greater London. The role involves developing and maintaining runtime security policies for Tetragon, a Kubernetes-aware security tool. Candidates should have over 3 years of experience in threat research and security detections. The position offers … opportunities to work with both Cisco and Isovalent engineers on enhancing security capabilities. Effective communication skills are essential, and familiarity with eBPF and Kubernetes is preferred. #J-18808-Ljbffr ...

seeking a Principal Product Security Engineer in London to lead the strategy and hands-on delivery of security across cloud platforms, code and CI/CD pipelines. You will act as a senior contributor, building secure-by-default patterns, guiding engineering teams and shaping security ...

Senior Full Stack Engineer, Agentic Security About Dynamo AI Dynamo AI is building the future of trustworthy AI for the enterprise. Our platform provides real-time guardrails, red-teaming, and observability for generative and agentic AI systems-ensuring safe, compliant, and reliable deployments across regulated sectors such … well recognized and well funded (>$30M raised), with offices in NYC, SF, Bangalore, and a European office planned to open soon. The Agentic Security Team builds the product and infrastructure behind Agent Warden - a security layer for agentic systems that detects risk patterns, enforces guardrails, and gives teams ...

Great Ormond Street Hospital Children's Charity is seeking a Senior Cloud & Security Engineer to shape and evolve its cloud platform, driving a cloud-first transformation and Cyber Security Programme. You will own complex platform initiatives, deliver secure, scalable infrastructure, and establish reusable components and standards. … role requires strong AWS experience, Terraform, CI/CD and security expertise, with hybrid work and a £68k annual salary. #J-18808-Ljbffr ...

Brex is seeking a Senior Application Security Engineer to identify and remediate vulnerabilities across the Brex platform. You will perform code reviews, penetration testing, and tooling development to support secure developer workflows. You will collaborate across Security Operations, GRC, Product Security, Front End Platform … Infrastructure, applying threat modeling, SAST/DAST, and agentic AI security to protect a global financial service used by top customers. #J-18808-Ljbffr ...

seeking a Senior Offensive Security Engineer to lead red team engagements and adversary simulations across trading, IT, and cloud environments. You will translate findings into concrete improvements and help shape the offensive security program. You will work with security, infra, and trading teams to mature ...

leading AI organization in Greater London is seeking a Security Engineer to safeguard AI systems. Your role will involve building security for large-scale AI clusters and creating secure development practices. Ideal candidates will have significant software engineering experience, a Bachelor's degree in a relevant field ...

Hamilton Group is seeking a Senior Network Engineer based in London to own and advance the enterprise network and Fortinet security infrastructure across office, data centre, cloud, and remote-access environments. You will provide senior technical leadership for network operations, security, resilience, and improvement initiatives … collaborating with Infrastructure, Cloud, Security and Service Management teams to deliver secure, scalable networking that supports Hamilton's global operations and #J-18808-Ljbffr ...

Hamilton Barnes Associates Limited in London is seeking a senior Network Security professional to join a fast‐moving technology and risk management environment. Reporting to the Head of Security, you will lead infrastructure and network security efforts within the London network security team and collaborate … with engineering colleagues. You will design, implement, and maintain Cisco ISE, automate security operations, gather requirements, and support the global infrastructure while delivering #J-18808-Ljbffr ...