126 to 150 of 210 Application Security Jobs in London

Senior Security Specialist – Penetration Testing

Location
Greater London, England, United Kingdom
LSEG is seeking aSenior Penetration Tester to join our internal offensive security team. This role is hands‐on and deeply technical, responsible for planning and executing penetration tests across a wide range of systems and applications. The successful candidate will be a skilled offensive security professional with … passion for uncovering vulnerabilities and improving security posture through rigorous testing and collaboration. Key Responsibilities Conduct in-depth penetration tests on applications, infrastructure, and cloud environments. Take full ownership of assigned pentesting engagements end‐to‐end and deliver with limited oversight. Compile technical scoping documents, track and document assessment ...

Senior Response Engineer – Cloudflare Managed Defense Center (CMDC)

Location
Greater London, England, United Kingdom
Senior Response Engineer – Cloudflare Managed Defense Center (CMDC) Cloudflare ·United States, London, United Kingdom Hybrid Full-time Senior Security Job Description About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers … websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent ...

Senior Cyber Threat Intelligence (CTI) Analyst

Location
Greater London, England, United Kingdom
Summary: Senior Cyber Threat Intelligence (CTI) Analyst UK (9:00 AM – 18:00 PM GMT) Live Nation Entertainment – Cyber Security Operations, Cyber Security THE TEAM Live Nation is seeking a Senior Cyber Threat Intelligence (CTI) Analyst to drive hands‐on intelligence analysis and research across our global environment. … Threat Hunting team. The team focuses on identifying emerging threats, conducting in-depth analysis of malicious activity, and enhancing the organization’s security posture, detection, and incident response capabilities. THE ROLE This is a hands‐on senior individual contributor role for an analyst who wants to stay technical: researching ...

AI Security Architect: LLMs & Agentic Systems (Hybrid)

Location
Greater London, England, United Kingdom
Barclay Simpson seeks an exceptional hands-on security technologist/architect to shape how the company securely adopts AI and Agentic AI. You will work with architects, developers and engineering teams to secure AI platforms from design through deployment, creating reusable security patterns and challenging designs. The ideal … candidate has a strong security architecture background with application security and AI/LLM security architecture experience, and practical exposure to Vertex AI/Gemini, #J-18808-Ljbffr ...

Cyber Security Specialist

Location
Greater London, England, United Kingdom
brief We are looking for a Cyber Security Specialist to join our team to work closely with stakeholders to ensure cyber security projects reach their goals across the organization. You will be responsible for various tasks such as redesigning processes and documenting activities in this area. … cyber security specialist's duties is to use their knowledge of our infrastructure and networks to spot dangerous features and practises. For client-based asset risk, corporate policy compliance, and vulnerability assessment, they will create customised application security evaluations. Advanced knowledge of TCP/IP, common networking ...

Security & Compliance Architect for Scalable SaaS

Location
Greater London, England, United Kingdom
Lantern Ltd is seeking a Senior Security & Compliance Engineer to own Lantern's security programme as we scale. You will cover cloud and application security, vulnerability management, IAM, incident response, secure software delivery, SOC 2, risk management, and customer security assurance. You'll drive security ...

Senior Product Security Engineer - Cloud & App Security

Location
Greater London, England, United Kingdom
Tide is seeking a Senior Product Security Engineer to join our Security Engineering team in London. You will dive into mobile and web technologies, secure cloud-native applications, and guide developers in secure design principles to prevent vulnerabilities. You will help remediate findings and drive secure development across …/CD, collaborating with product and engineering teams. Our role emphasizes mentoring, automation, and broad expertise in application security, with a flexible workplace #J-18808-Ljbffr ...

Senior Remediation Architect, Mandiant STS

Location
City of Westminster, England, United Kingdom
Computer Science, Information Systems, Cybersecurity or a related technical field, or equivalent practical experience. 5 years of experience designing, evaluating, or leading enterprise security architecture programs and managing delivery teams. Experience applying advanced enterprise security controls, network engineering concepts, and identity management frameworks. Preferred qualifications: Relevant industry certifications … e.g., CISSP, CCSP, Google Cloud Certified Professional Cloud Security Engineer, or equivalent). Experience with threat modeling methodologies (e.g., STRIDE, PASTA) and application security perimeters. Proven experience managing project life-cycles, establishing scope boundaries, tracking engineering milestones, and delivering complex client reports on time. Direct experience building ...

Senior Full Stack Engineer

Location
Greater London, England, United Kingdom
operating solutions in Microsoft Azure, alongside modern practices such as Git-based source control, automated testing and CI/CD.* Have experience with mobile application deployment, ideally using Capacitor for Android and/or iOS, or bring transferable experience with comparable technologies.* Understand software architecture, application security … committed to leading our clients across our various end markets to engineer a better future for our planet and its people.## Additional information**Security clearance**This role may require security clearance and offers of employment will be dependent on obtaining the relevant level of clearance. If this ...

Expert Forward Deployment Engineer

Location
Greater London, England, United Kingdom
Project description The project is focused on improving the security, release reliability, maintainability, and operational resilience of business-critical banking applications.Forward Deployed Engineers will conduct targeted, hands-on engagements with development teams that are facing challenges with vulnerability remediation, automated testing, legacy technology, production stability, or achieving a safe … rapid release cadence.The role combines senior software engineering, DevOps, SRE, test automation, application security, and legacy modernization. Approximately 70% of the work involves hands-on coding and configuration.The technical scope includes building effective automated test suites, remediating security vulnerabilities, performing dependency and reachability analysis, upgrading Java ...

Senior Applications Architect

Location
Greater London, England, United Kingdom
integration platforms, and customer‐facing technology solutions within a complex Financial Services environment. This role combines strategic architecture leadership with hands‐on engagement across application modernisation, cloud transformation, platform engineering, and enterprise integration initiatives. You will work closely with business stakeholders, product teams, delivery organisations, customers, and suppliers … ensure technology investments deliver measurable business value while maintaining security, resilience, and regulatory compliance. The successful candidate will bring significant experience operating in large, complex organisations and possess the leadership skills required to influence architecture decisions across business and technology functions. Key Responsibilities Define and maintain application architecture ...

VP Engineering

Location
Greater London, England, United Kingdom
Role Overview BibliU is hiring a VP Engineering to lead and grow its engineering function. This role owns team leadership, engineering standards, technical governance, security posture, and delivery against the product roadmap. The engineering organization today is about 15 engineers across application and platform, primarily full stack TypeScript … cross-functional alignment. What Success Looks Like in year one The team is stable, growing, and the engineering managers are developing under you. Security posture is documented, owned and defensible, and customer security reviews are routine rather than fire drills. Availability, performance and incident metrics are improving. Delivery ...

APIGee IT Expert - Senior

Location
London, United Kingdom
. This role will suit someone who is technically hands-on, confident troubleshooting end-to-end API requests and comfortable working closely with platform, application, security and engineering teams. Responsibilities: Configuring and testing Apigee X proxies, policies, target connectivity and environment settings, Implementing and testing API security … pipelines and repeatable deployment processes, Supporting the configuration and promotion of APIs through development and test environments, Investigating defects and resolving integration issues alongside application and platform teams, Producing clear test evidence and documenting technical outcomes, Creating onboarding guidance, operational documentation and runbooks, Supporting production-readiness activities and knowledge ...

Senior Product Security Engineer - Drive Secure by Design

Location
Greater London, England, United Kingdom
Trainline plc is seeking a Senior Product Security Engineer to own product security across the development lifecycle, collaborating with SRE and Platform Engineering to embed security into every build. You will own the application security roadmap, manage vulnerability processes, conduct threat modelling for web, mobile ...

Cloud Solutions Architect

Location
Greater London, England, United Kingdom
based 4 days per week This individual will be part of the Fortinet Professional Services with a specific focus around Public Cloud and Cloud Security technology areas and associated Fortinet products/solutions. Youwill need to be comfortable in front of customers of all levels and be able … concepts. Ideal candidates will have excellent knowledge and hands-on experience of public and/or private cloud technologies, software development experience, network/application security expertise and support four main areas of responsibility: 1) Cloud Security Solution Expert Assist customers with creating multi-cloud and hybrid ...

Senior Software Engineer

Location
City Of London, England, United Kingdom
more effectively. Role Overview As a Senior Software Engineer, you will play a pivotal role in architecting and developing our next-generation web application and API. This role requires technical leadership, hands‐on development, and mentoring of junior developers. You will drive the adoption of best practices, ensuring scalability … security, and performance. If you are passionate about software development, enjoy solving complex problems, and are ready to lead innovative projects, Join our dynamic team and contribute to building transformative solutions that make a tangible impact. This role will be eligible for visa sponsorship only for candidates that ...

AppSec Engineer: Build Secure Systems & Tooling

Location
Greater London, England, United Kingdom
Rightmove is hiring an Application Security Engineer to join the expanding AppSec function. You will partner with engineering teams to deliver security tooling, manage vulnerability workflows, and shape secure design practices across services. Responsibilities include triage of findings, threat modelling, and maintaining runbooks, with a cloud-security focus using Prisma Cloud. The role involves collaboration with multiple squads and stakeholders to advance security maturity. #J-18808-Ljbffr ...

Security Architect - DevSecOps +

Hiring Organisation
Hackajob Ltd
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
allowing them to focus on delivering their business goals instead of the underlying infrastructure. Why we need this role We are looking for a Security Architect specialising in Application Security and DevSecOps to join the Security an click apply for full job details ...

Security Engineer — Build Secure Payments Stack

Location
Greater London, England, United Kingdom
Evervault is hiring its first Security Engineer in London to own application security from day one, working with Rust and Node.js on AWS. You’ll build security checks, fix vulnerabilities, and influence product design to protect customer data. In your first year you’ll split time … between hands-on security engineering and audits, with opportunities to lead security reviews and respond to findings as Evervault scales. #J-18808-Ljbffr ...

Senior Solutions Engineer

Location
Greater London, England, United Kingdom
/CD, and SCM tools, as well as container orchestration solutions (eg: Kubernetes, Openshift etc) Experience in the RFx process Knowledge of Network and Application Security L3 - L7 security is knowledge is a requirement What you'll bring: 6 + years of related industry experience BS/… offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. Request by contacting accommodations@f5.com. Hybrid: Employees within 30 commutable miles ...

Senior AppSec Engineer: Cloud-Native Secure DevOps Leader

Location
Greater London, England, United Kingdom
Future Health Limited is seeking a Senior Application Security Engineer to enhance our Information Security team in Greater London. This hands-on role involves embedding security in fast-moving delivery pipelines and collaborating with engineers to shape secure design practices. You will develop security policies ...

DevOps Engineer (Azure DevOps CI / CD)

Hiring Organisation
Red King Resourcing
Location
London, West End, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £650/day INSIDE IR35 - twice a month onsite
implement infrastructure as code in Azure Cloud Experience in setting-up automated test tools and building in to deployment pipelines An excellent understanding of application security and information security controls A good understanding of data warehouse and analytics platform/tools experience, plus monitoring and logging platforms ...

Lead Software Engineer- iOS- Senior Hands On- JPM Personal Investing

Location
Greater London, England, United Kingdom
that focus on specific products and projects. Job Responsibilities Follow an Agile SDLC to develop and deliver product features to the native iOS Nutmeg application Take ownership of tasks from the estimation stage right through until the release stage and post production Identify, troubleshoot and resolve existing or newly … capabilities and skills English working proficiency is a must, you will be working with the team in London Commercial experience on native iOS mobile application development Good Knowledge of object-oriented programming with Swift, Xcode Strong analytical and problem-solving skills Experience writing unit tests using XCTest framework Experience ...

Lead Software Engineer- iOS- Senior Hands On- JPM Personal Investing

Location
Greater London, England, United Kingdom
that focus on specific products and projects. Job Responsibilities Follow an Agile SDLC to develop and deliver product features to the native iOS Nutmeg application Take ownership of tasks from the estimation stage right through until the release stage and post production Identify, troubleshoot and resolve existing or newly … Capabilities And Skills English working proficiency is a must, you will be working with the team in London Commercial experience on native iOS mobile application development Good Knowledge of object-oriented programming with Swift, Xcode Strong analytical and problem-solving skills Experience writing unit tests using XCTest framework Experience ...

Software Engineering Manager - Security

Location
Greater London, England, United Kingdom
excited to hear from people who show strong product ownership and enjoy switching between engineering management and being hands on with technical work. The security team is cross-functional and comprises diverse people who bring their unique engineering expertise. The team covers the following areas: Define the best … traditional silos to find unique solutions and approaches that lead the industry. Duties Working with your team closely on defining and delivering our security engineering roadmap. Actively participate in technical discussions and design reviews. Measuring your team’s impact. Contributing to product strategy. Contributing to engineering-wide initiatives ...