51 to 75 of 93 Senior Security Engineer Jobs in London

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 ...

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 ...

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 ...

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 ...

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 ...

Cohere is seeking a Senior Security Operations Engineer to advance security across cloud platforms and CI/CD pipelines. You will work with teams to design secure architectures, automate controls, and manage access to systems at scale. The role emphasizes hands-on engineering, strong collaboration ...

leading health tech firm is seeking a skilled Cloud Security Engineer to enhance AWS security and enable secure development. This role focuses on automating security processes and strengthening cloud infrastructure. Candidates should have at least 7 years of experience and expertise in AWS services, Terraform ...

Anduril Industries seeks a Staff Product Security engineer to build security tooling, identify vulnerabilities, and safeguard our AI, command and control, aerospace, and sensing technologies. You will review architectures, perform threat modelling, and collaborate with teams to fortify firmware, software, and embedded systems, while ensuring compliance … security documentation is thorough and up-to-date. #J-18808-Ljbffr ...

Role Description Senior Network Engineer – Cloud, Security & Infrastructure Location: London (Hybrid) Employment Type: Permanent/Fixed-Term Contract Start Date: ASAP Build, Secure and Transform Enterprise Networks What You'll Be Doing: Network & Cloud Infrastructure Design, implement, and support enterprise and cloud networking solutions across AWS, Azure … Load Balancers (LTM, GTM, ASM) to deliver high availability and performance. Manage Infoblox DNS, DHCP, and IPAM services to support efficient network operations. Security, Compliance & Risk Management Configure and manage security policies across Palo Alto, Check Point, Cisco ASA, and ForeScout platforms. Support the implementation of Zero Trust ...

United States Digital Space LLC seeks a Security Engineer to enhance their AI Customer Agent service. You'll design and operate critical security features, ensuring the secure deployment of customer-facing capabilities. This role requires a strong background in application security, software engineering, and the ability … respond to security incidents. Benefits include competitive salary, flexible PTO, and a supportive work culture that respects personal opinions. #J-18808-Ljbffr ...

ENGINEERING DESIGN LIMITED is seeking a Senior ICT & Security Design Engineer to be based in London, Bicester or Newcastle. The role covers ICT infrastructure, network design and security installations for diverse projects. You will lead client-facing studies, oversee medium-sized projects and coordinate with engineers ...

Salt is seeking a Senior Imperva DAM/Linux Security Engineer for a 6-month contract in Greater London. This role focuses on enhancing a large scale Imperva Data Activity Monitoring platform within a complex enterprise environment. Responsibilities include managing the security estate, supporting integrations with ...

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 ...

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 ...

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 ...

Engineering Design Limited in London is seeking a Senior ICT & Security Design Engineer to lead ICT infrastructure projects, security design and coordination of engineering services for building facilities. You will work with clients and project teams, manage medium-size projects, produce reports, and ensure technical accuracy ...

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 ...

confidential Limited is seeking a Senior Platform Engineer - UNIX to join a major security programme in London with some onsite work. You will analyse vulnerabilities across a UNIX/Linux estate and drive remediation with engineering teams, prioritising by risk and business impact. Required are strong UNIX ...

Salary: £80,000 - £90,000 per annum Location: London What the role covers: Designing, developing, optimizing, and enhancing a GenAI prompt security platform to protect firm AI/LLM-based applications from adversarial attacks and prompt injections. Building and automating a security testing framework to validate protection mechanisms ...

WRITER is seeking a staff detection and response engineer to protect its AI infrastructure across distributed training environments. You will design detections for AI-specific threats, build automated responses, and coordinate incident response across security, cloud, and AI research teams. This role demands hands-on security engineering … threat hunting, and collaboration with cross-functional teams to advance security guardrails and scale security operations as WRITER grows. #J-18808-Ljbffr ...