201 to 225 of 355 Senior Security Engineer Jobs in the UK

000Sector: I.T. & CommunicationsJob Type: PermanentWork Hours: Full TimeContact: Jas GujralEmail: cv@nexusjobs.comTelephone: 020 7488 6900Apply for this job nowJob DescriptionSenior Network Engineer with Security and Cisco – City LondonOur Client urgently requires a Senior Network Engineer with heavy background in Network Security on Cisco and Microsoft. … security and support of the company's network is paramount. Predominately a support role (BAU) with design of scalable solutions deliverable through projects. Encompassing numerous technologies that benefit high-availability solutions. This role requires a responsible individual who can design and deliver secure networking solutions. Fast thinker ...

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 ...

Supply & Trading GmbH in Swindon, UK is seeking an experienced AWS Cloud Security Engineer to secure, evolve and operate the AWS platform used by RWEST and related teams. The role focuses on embedding security into cloud foundations, reference patterns and platform services. You will implement secure … review architectures, and drive vulnerability management and security automation in a fast-paced, collaborative environment. #J-18808-Ljbffr ...

Mark43 is seeking an AWS Cloud Security Engineer to join our team in Manchester. You will own vulnerability and threat management for an environment supporting law enforcement and emergency services, working closely with a US-based Cybersecurity team. This is a hands-on role with on‐site security ...

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 ...

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 ...

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 ...

Envitia is seeking a Senior Data Engineer to join our Security & Intelligence Consulting team in the UK. You’ll design and build modern data platforms that empower Defence, Government and National Security clients to make faster, better-informed decisions from diverse datasets. Working alongside data scientists ...

Line Network Engineer £43,000£49,000 24 days holiday + bank holidays, pension, paid parking, phone allowance, funded training & certifications Manchester/Warrington 1 day a week from home Travel to customer-site travel across the North West as required The Opportunity: If you enjoy getting into complex … person designing and delivering the solution, this is worth a look. Were working with an established MSP/MSSP thats looking for an experienced engineer to strengthen its networking capability. Its a mixture of 3rd line network support and project delivery, so you wont just be sitting ...

Protection Group International is seeking a Senior Engineer to design and manage secure endpoint solutions across Windows and mobile platforms. You will work with Microsoft technologies like Intune, Autopilot, and Conditional Access to enhance device management and security. The ideal candidate will have a minimum of 7 years ...

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 on-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 anchor ...

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 ...

InfoSec People Ltd in the United Kingdom is partnering with a fast-growing Cyber Security SaaS organisation to hire a Senior AI Security Engineer. You will help build autonomous AI agents capable of planning, reasoning and executing security workflows in tightly controlled environments. This hands … role focuses on production AI systems, security testing automation, and safe integration with tooling. Remote UK work with competitive salary and benefits. #J-18808-Ljbffr ...

Cyber, we're on a mission to help good people win. Founded in Edinburgh in 2016, we're one of the fastest growing cyber security companies in the UK and North America, serving over 400 customers on four continents. We protect organisations against the rising threat of cyber-attacks … enabling them to thrive in an increasingly unpredictable and inhospitable digital landscape. As a Microsoft-only security house, a Microsoft Solutions Partner for Security, a member of the Microsoft Intelligent Security Association (MISA), and winner of the Microsoft Security MSSP of the Year 2025 award ...

Peregrine is seeking a Senior Azure Application, DevOps & Security Engineer (SC Cleared) for a permanent hybrid role supporting a UK financial regulator. You will productionise an Azure App Service-backed analytics app, connect API Management, and harden security and deployment processes. You will ...

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 ...

NSSLGlobal Group is looking for a Cybersecurity Expert to develop and manage security plans for both internal and customer networks. You will lead in resolving security incidents and improving cybersecurity standards. The ideal candidate will have 5+ years of hands-on experience designing secure networks, proficiency in Cisco ...

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 ...

Sophos in Canada is seeking a Senior Software Engineer to own end-to-end product development for our AI security team. You’ll build and ship AI-powered products across frontend, backend, and APIs with high autonomy and minimal specs. You will work on LLM-driven workflows ...

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 ...