101 to 125 of 164 Senior Security Engineer Jobs in London

sandboxing, permission models, anti-tampering - and someone has to attack them before someone else does. That's you. You’ll work as an offensive security specialist focused entirely on Klarna's mobile surface. You’ll run penetration tests and red-team exercises against the apps, reverse-engineer builds … find what static review misses, and use the OWASP Mobile Application Security Verification Standard (MASVS) and Testing Guide (MASTG) as your working framework rather than a checklist you fill in after the fact. You’ll work closely with the engineering teams who build and harden the apps, turning what ...

Publicis Groupe agencies with the business solutions, technology platforms and expertise they need to transform, innovate and increase productivity.OverviewWe are seeking a Network and Security Engineer to be part of a highly motivated team in a challenging and rewarding environment. The candidate will work as part … ability to work in a fast-paced environment providing Level 2 and 3 technology support and administration for the IT Infrastructure Network and Security Operations Team. Technology support will cover network and security technologies across multiple sites in multiple countries.ResponsibilitiesSolid understanding and minimum 8-10 Years of hands ...

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 ...

Inc. is hiring a Senior Firewall/Security Network Engineer to own the design, delivery, and operation of the firewall and network-security estate across on-prem data centers and cloud (AWS, OCI). This is a hands-on senior role shaping architecture for hybrid ...

teams globally, empowering CX leaders with performance and insights to make smarter decisions, delight customers, and drive lasting business impact. We're hiring a Senior Firewall/Security Network Engineer to own the design, delivery, and operation of our firewall and network-security estate across … prem data centers and cloud (AWS, OCI). This is a hands‐on senior role: you'll set the firewall architecture — especially for hybrid and cloud connectivity — while running the day‐to‐day change and incident work that keeps the business connected and secure. You'll be the technical ...

ones matter, why, and what else might be affected by the same root cause. That's this position. You'll sit on the Offensive Security team, running your own penetration tests against Klarna's internal and public-facing systems while also triaging what comes in from bug hunters, pentest … perform variant analysis on issues surfaced through any channel, tracing where else the same class of bug might exist. You research and assess the security of Klarna's third-party solutions and integrations. You build tooling for reconnaissance, automation, and metrics collection. You guide developers, product security teams ...

Thornton Tomasetti in the United Kingdom is seeking a Senior Project Engineer to join our Protective Design and Security practice. You will work on security consulting projects across the UK, Europe and the Middle East, delivering threat and risk assessments, security planning and physical/ ...

security-focused technology company in Greater London seeks a mid-level or senior Software Engineer to develop cloud services and infrastructure. This role offers the opportunity to directly contribute to scalable, reliable systems and requires 6+ years in cloud service development. Ideal candidates will have strong programming … skills in Go or Python and a solid understanding of distributed systems. Join a close-knit startup committed to innovation and growth in the security space. #J-18808-Ljbffr ...

JPMorganChase in London seeks a seasoned Cloud Security Engineer to lead threat modelling, build guardrails, and automate security across AWS. You will translate findings into remediation guidance for engineering teams and collaborate with risk and control functions to align with policy requirements. The role emphasizes secure coding ...

Civic Recruitment Limited is seeking a senior cybersecurity engineer for a 6-month contract with a local authority in London. You will lead CrowdStrike Falcon deployment and ongoing management, design and tune Splunk dashboards, and act as a technical escalation point for security incidents. You will mentor … internal team, help mature security capabilities during a period of transition, and drive threat detection, incident response and automation enhancements within the SOC. #J-18808-Ljbffr ...

Peregrine is seeking a Senior Azure Application, DevOps & Security Engineer to productionise an Azure App Service-backed analytics app within a regulated UK environment. You will connect API Management, implement Entra ID authentication, secure access, and drive repeatable deployment, testing, monitoring and operations. This is a hands ...

Gujral is seeking a Senior Network Engineer with a strong security background focused on Cisco implementations in the City of London. The role combines BAU support with design of scalable, secure networking solutions across data centre and branch environments. The candidate will diagnose issues, remediate BAU events ...

Volta is seeking a Senior Manager, Cyber Security Engineering to lead the ISO 27001 and SOC 2 Type II program across a fast-growing, security‐minded infrastructure platform. You will own controls, evidence, and ISMS documentation while collaborating with platform engineers and external auditors. You’ll drive … audit readiness, oversee risk assessments, and coordinate responses to customer security questionnaires and regulatory inquiries, shaping Volta’s security posture at scale. #J-18808-Ljbffr ...

Onyx-Conseil is seeking a Senior Network Engineer in London to support BAU operations and deliver secure networking solutions. You will design and implement firewall policies, manage IPS deployments, and uphold global standards across data-centre and branch networks. The role requires strong Cisco expertise, experience with ...

PhysicsX Ltd is seeking a Senior Software Security Developer for their Core Platform Services team in London. This role involves writing secure code components crucial for various teams across the company. The ideal candidate has over 8 years of experience and a strong focus on security feature ...

Retail Company in London/Amsterdam (Hybrid) is seeking a Senior Network & Security Specialist for a 1-year fixed term contract. You will manage and scale the EMEA network across offices, stores, warehouses and showrooms, deploying Cisco Meraki and other cloud-managed equipment. The role requires 5+ years ...

Amazon Security Automation team seeks a skilled Software Development Engineer II to build autonomous security solutions that protect Amazon’s customers, leveraging AI/ML to automate detection, analysis and response at scale. As an SDE II you will design and develop AI-driven security automation … systems, collaborate with security teams, and contribute to secure, scalable infrastructure spanning AWS services. #J-18808-Ljbffr ...

Security Patching Deployment Engineer is required for this financial in London. To provide secure and reliable deployment of Microsoft Windows security patches across this financial org. workstations and servers using Ivanti Security Controls. Technical skills/experience required: Ivanti Security Controls Windows Server and Windows … reduce manual effort, improve control effectiveness and support the transition towards a scalable future-state operating model. Some responsibilities include: Execute approved Windows security patch deployments across workstations and servers through Ivanti Security Controls, including scheduled, phased, manual and out-of-band releases. Configure and machine groups, agent ...

Artemis is seeking its first UK Sales Engineer to drive enterprise security pre-sales. You will partner with Account Executives to win complex deals, lead deep technical discovery, and demonstrate Artemis solutions to SOC teams, engineers, and CISOs. You will help shape the UK go-to-market … build scalable playbooks and messaging for growth. You will lead demos, support pilots, and respond to security questionnaires while collaborating across Product, Engineering, and Security Research to #J-18808-Ljbffr ...

will own end-to-end features, evolve the distributed platform, and tackle an unusual threat model with an AI-first mindset. As a Founding Senior Engineer, you will help define engineering culture, establish standards, and build for scale with real customers and revenue. #J-18808-Ljbffr ...

simple, to the large and complex, we want a life-long partnership, a company our clients and people can rely on. The Role: As Senior Network SecurityEngineer, you will be responsible for the end-to-end design and implementation of security solutions within clients. This will involve working … requires absolute delivery working under various conditions, often unsupervised on site with the client. Working as part of a virtual project team the project engineer would be responsible for the delivery and technical assurance of the entire implementation life cycle to deliver the agreed solution seamlessly. This may include ...

quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the role The Security Engineering team's mission is to safeguard our AI systems and maintain the trust of our users and society at large. Whether we're developing … critical security infrastructure, building secure development practices, or partnering with our research and product teams, we are committed to operating as a world‐class security organization and keeping the safety and trust of our users at the forefront of everything we do. Responsibilities: Build security for large ...

About this role: Cilium Tetragon is a flexible, Kubernetes-aware security tool, with real-time observability and enforcement. Leveraging the power of eBPF, Tetragon offers a low-overhead, in kernel solution that enhances security posture by monitoring system behaviors such as process executions, system call activities, and both … network and file access events. What you’ll do: Develop and maintain Tetragon runtime security policies to ensure customers have good visibility of suspicious activity on their infrastructure and are protected against the latest emerging threats. Help design frameworks and architectures that allow customers to easily consume policies ...

Hiya seeks a DevSecOps Engineer to lead security maturation across engineering. You will design platform-based security tools and enable secure software delivery with velocity, partnering with Core Tech, Product, and leadership. You’ll balance high-level strategy with hands-on execution, promoting a platform mindset ...

Would you like to help implement novel approaches to how security engineers learn about the numerous Amazon applications. How about working with customers and peers from the entire range of Amazon's businesses on products that make a real difference in our Amazon Security goals? Whether … about building highly scalable and reliable systems in the cloud or a software developer who likes to solve interesting and complex business problems, Amazon Security has the challenges you are looking for. Amazon Security is responsible for the protection of customer and corporate data. We are connected ...