76 to 100 of 152 Senior Security Engineer Jobs in England

Harmonic Security in London seeks a Senior Product Security Engineer to own and evolve the platform's security architecture, writing production code that hardens authentication, authorization, encryption, and multi-tenant isolation. You will define security standards, run threat modeling, and partner with engineering … bake security into design time. This role emphasizes hands-on coding, accountability, and building secure systems for enterprise-grade AI-enabled workflows in a fast-moving #J-18808-Ljbffr ...

This role is a 12 Month Fixed Term Contract As a Senior Application Security Engineer at giffgaff on a 12-month fixed-term contract, you'll be responsible for embedding security into the way we design, build and operate our products. Working across a modern technology … estate, you'll help ensure security is considered from the earliest stages of development through to production, enabling engineers to deliver secure software with confidence. This role combines technical depth with collaboration and influence. You'll work alongside engineers, architects and platform teams to identify risks, improve security ...

that transform the world for good. Your impact Are you ready to shape the future of secure connectivity? At Jacobs, we are seeking a Senior Network Security Engineer to deliver high-assurance, security-critical solutions within regulated and sovereign UK contexts. This is your opportunity … isolated environments, enabling secure, resilient operations across public and private infrastructures. What you’ll do: Design and deliver secure network architectures for controlled environments. Engineer secure browsing and remote access solutions. Define and implement firewall policies, DNS design, and traffic control. Apply Zero Trust principles to network access ...

Jobtailor is seeking an experienced Senior Cyber Security Engineer to own and advance our security tooling and controls within a growing in-house IT and Security team in Manchester. You will shape security strategy and directly influence policy, incident response, and vulnerability management across … estate. You will collaborate with business partners to protect a fast-growing, global organisation, with a clear path to grow the function as the security program matures. #J-18808-Ljbffr ...

Senior Cloud Security & DevSecOps Engineer will play a vital role in protecting Cantor's global cloud estate. This hands-on role involves embedding security early in the SDLC, leading complex cloud security issue resolution, and implementing robust controls across identity, workloads, data, and the software … vendors, champion ITIL processes, and stay ahead of emerging cloud and DevSecOps technologies. Responsibilities Manage and maintain CSPM/CNAPP platforms, cloud-native security services, and policy-as-code pipelines. Perform precise and accountable implementations, configuration changes, and platform upgrades across AWS, Azure, and GCP. Work with vendors ...

United States Digital Space LLC in Greater London is seeking a Senior Application Security Engineer to enhance their security measures across product development. This role involves embedding security by design, collaborating with engineering and product teams, and conducting thorough risk assessments. The ideal candidate will … have over 5 years of experience in application security, particularly in SaaS environments, and possess a deep understanding of secure coding practices. This position offers the opportunity to influence security strategies while enabling rapid product development in a collaborative environment. #J-18808-Ljbffr ...

Fidelis Partnership is seeking a Senior Cyber Security Engineer to strengthen hands-on security engineering during a period of security maturity uplift. You will operationalise tooling, remediate backlog, and produce audit-ready control evidence in collaboration with IT, SOC partners and delivery vendors. You will … work on CrowdStrike Falcon, Wiz CSPM, Mimecast and Microsoft security stack, delivering measurable improvements aligned with regulatory expectations and recognized frameworks. #J-18808-Ljbffr ...

Morson Human Resources Limited is seeking an experienced Senior Cyber Security Engineer for a 12‐month contract, National location. The role focuses on strengthening Security Operations, optimising XSIAM tooling and improving threat detection with automation. You will work in a high‐performing cyber security team … deliver dashboards for senior stakeholders, and support incident response while keeping aligned with government standards. #J-18808-Ljbffr ...

Vanta, our mission is to help businesses earn and prove trust.We believe that security should be monitored and verified continuously, and we empower companies to practice better security and prove it with ease. Vanta has a kind and talented team, and while some have prior security experience … many have been successful at Vanta without it. As a Senior Software Engineer on our Privacy & Data Security team based in London, you'll be an early member of our growing presence in Europe. You'll partner with product management, product design, and your team to drive ...

Financial Times is seeking a Senior Cyber Security Engineer to enhance application and cloud security within their AWS-hosted environment. The role focuses on vulnerability management, developing security guardrails for CI/CD pipelines, and facilitating threat-modelling sessions. You will work collaboratively with engineering … teams, ensuring secure delivery practices while mentoring junior staff. Ideal candidates will have strong practical experience in security and a developer-friendly mindset. An AWS Security certification is preferred. #J-18808-Ljbffr ...

This is a collaborative, customer-facing role focused on working alongside sales teams to develop opportunities, shape solutions, and drive growth across our cyber security portfolio. The role is centred on building trust with customers, understanding their challenges, and helping them navigate complex security decisions with clarity … confidence. As a Senior Security Presales Engineer, you’ll engage early in conversations, helping to define customer requirements and translate them into practical, achievable solutions. The emphasis is on being approachable, credible, and able to simplify complex ideas, rather than acting purely as a deep technical specialist ...

iProov is seeking an experienced Senior iOS Security Engineer to join our Product Security team in the UK. You will focus on hardening iOS apps and SDKs, implement RASP and anti-tamper controls, and defend biometric verification workflows. Collaborate with science and engineering teams to embed … security across the product lifecycle, research new attack techniques, and contribute to our security roadmap with practical defenses and proof-of-concepts. #J-18808-Ljbffr ...

Anduril Industries in the UK is seeking a Senior Product Security engineer to develop novel security tooling, uncover vulnerabilities, and secure our AI-enabled defense technologies, including aircraft, sensors, and C2 platforms. The ideal candidate has a software or hardware background with platform security focus ...

Limelight Health is looking for a Senior Application Security Engineer to join their team in Greater London. You will embed security by design across the organization, working closely with engineering and product teams to embed security tools into the development lifecycle. The ideal candidate will … have 5–10+ years in Application Security, expertise in securing cloud-native platforms, and hands-on coding experience. The role supports rapid innovation while maintaining robust security practices. #J-18808-Ljbffr ...

Leidos is seeking a Senior Cyber Security Engineer in Farnborough, UK. The role combines infrastructure engineering with security engineering to embed security across the development lifecycle and operations. You will work across both infrastructure and security domains, reporting to the System Technical Lead … Cyber Security Engineering Lead. Key responsibilities include updating COTS apps, vulnerability scanning, security definition management, patching, log management, and PKI/secrets #J-18808-Ljbffr ...

Lendable is seeking a pragmatic Security Engineer to own configuration, integration, and automation of internal security tooling. You will build and maintain pipelines, guardrails, and data integrations across cloud and SaaS platforms to strengthen the security posture. The role emphasizes hands-on scripting, AI-assisted coding … strong collaboration with the InfoSec team and Platform Engineers to translate security requirements into scalable configurations. #J-18808-Ljbffr ...

Matchtech is seeking a senior AI Staff Security Engineer to act as the linchpin of our security posture, engineering automated workflows and reducing manual overhead across the enterprise. You will manage systemic risk of Shadow AI agentic frameworks and enforce least privilege through programmatic control … software across the organization. You will design and operate AI Detection and Response (AIDR) solutions, automate critical security workflows, and lead offensive security operations #J-18808-Ljbffr ...

CoinShares, located in the City of London, is searching for an experienced Cyber Security Engineer to enhance their security posture in a cloud-first environment. You will design, implement, and maintain security controls across AWS, and work closely with the Cyber Security Analyst and DevOps … teams to embed security into operations. Candidates should have over 5 years of experience in cyber security, strong hands-on AWS skills, and relevant qualifications in the field. The role demands excellent communication skills and a proactive approach to security challenges. #J-18808-Ljbffr ...

Jacobs in Bristol seeks a Senior Network Security Engineer to deliver high-assurance, security-critical solutions within regulated UK contexts, blending traditional networking with modern secure access and hybrid cloud connectivity. You’ll design secure architectures, implement Zero Trust, and collaborate with DevOps to integrate controls ...

Security Assurance Services LLC is seeking a Senior Security & Compliance Engineer to lead the design, deployment, and implementation of complex AWS security and compliance solutions for highly regulated customers. You will write code, build AI-enabled automations, and drive secure-by-design controls across multi ...

Elsevier is seeking a Senior Application Security Engineer to strengthen secure software delivery across engineering teams. You will embed security practices, tools, and automation into development workflows to enable secure applications and CI/CD pipelines. You will guide practical security improvements, design reusable templates ...

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 ...

Markets, located in Greater London, is searching for an experienced Senior Network & Security Engineer to design and support global network infrastructure. This role ensures high performance and security across both cloud and on-premise environments. The successful candidate will engage in project delivery and business ...

help UK public sector organisations build and run digital services that are secure, trustworthy, and resilient. As a Senior Security Assurance Engineer in our Cyber practice, you'll take end-to-end ownership of security assurance work across complex government environments - designing audit approaches, leading risk … assessments, and helping clients understand and improve their security posture i click apply for full job details ...

Hamilton Barnes Associates Limited is seeking a Senior Security Proxy Engineer for a 6-month hybrid contract based in London. This role focuses on implementing and optimising enterprise proxy infrastructure to enhance security, compliance, and user productivity. The ideal candidate will bring over 6 years ...