Application Security Leader

RELX Group; Greater London; On-site; GBP 110,000 - 165,000; Full time

Benefits offered by this job

Healthy work/life balance

Parental leave

Study assistance

Sabbaticals

Job summary

RX is seeking an experienced Principal Application Security Engineer to lead application security across its global technology estate. Reporting to the CISO, this role will act as the senior technical authority for secure software delivery and lifecycle integration.

You will partner with engineering leadership to embed security while enabling rapid, safe business value. This high-visibility role spans Digital, Global Business Systems, cloud platforms, APIs, integrations, and customer-facing

Qualifications

• Significant experience in Application Security, Product Security, or Security Engineering.
• Experience leading application security programmes and governance across large software estates.
• Experience implementing Secure Development Lifecycle programmes and threat modelling.

Responsibilities

• Lead the RX Application Security programme, defining strategy, roadmap, standards, controls, and security maturity objectives.
• Embed Secure by Design principles across SDLC, including threat modelling and security reviews.
• Own and mature the Application Security Posture Management capability and related tooling.
• Develop KPIs, dashboards, and reporting for engineering and executives; identify automation opportunities.
• Oversee vulnerability management across apps and platforms including SAST, DAST, SCA, container, and CI/CD security.

Skills

Application Security

Threat Modelling

Secure SDLC

Cloud Security

Security Architecture

Vulnerability Management

OSS and Software Security

Security Metrics

Tools

Aikido

SAST

DAST

SCA

CI/CD Security

Job description

We are seeking an experienced Principal Application Security Engineer to lead application security across RX's global technology estate. Reporting directly to the Chief Information Security Officer (CISO), this role will serve as the senior technical authority for application security and secure software delivery practices. The successful candidate will partner closely with engineering leadership to ensure security is embedded throughout the software development lifecycle while enabling teams to deliver business value quickly and safely. This is a highly visible individual contributor role with enterprise-wide influence across Digital, Global Business Systems, cloud platforms, APIs, integrations, and customer-facing applications. The role combines technical leadership, application security expertise, engineering engagement, threat modelling, secure-by-design governance, and application security posture management. Responsibilities

• Lead the RX Application Security programme, defining and maintaining strategy, roadmap, standards, controls, and security maturity objectives.
• Drive adoption of Secure by Design principles by embedding security throughout the Secure Development Lifecycle (SDLC), including threat modelling and security architecture reviews.
• Own and mature the Application Security Posture Management capability, including management and optimisation of Aikido and related security tooling.
• Develop KPIs, dashboards, and reporting for engineering and executive stakeholders, while identifying opportunities for automation and continuous improvement.
• Oversee vulnerability management activities across applications and platforms, including findings from SAST, DAST, Software Composition Analysis, container security, Infrastructure as Code security, CI/CD security, API security reviews, and penetration testing.
• Partner with Engineering Directors, Architects, Product Leaders, and Software Engineers to promote secure coding, secure design, and developer-friendly security practices.
• Provide security guidance for cloud-native environments and modern architectures, including AWS, Azure, microservices, APIs, containers, serverless technologies, and SaaS platforms.
• Support governance, audit, compliance, risk assessment, and assurance activities while providing technical leadership and mentoring across engineering and security communities.
• Are you passionate about building secure software and driving security excellence across a global technology landscape?
• Do you enjoy partnering with engineering leaders to embed security by design and enable teams to deliver secure, innovative solutions at scale?,
• Significant experience in Application Security, Product Security, or Security Engineering.
• Strong understanding of modern software development methodologies and engineering practices.
• Experience implementing Secure Development Lifecycle programmes.
• Experience conducting threat modelling and architecture security reviews.
• Deep understanding of application security principles, attack techniques, and risk management.
• Hands‑on experience with OWASP Top 10, SAST, DAST, SCA, Container Security, Infrastructure as Code Security, CI/CD Security, and API Security.
• Experience securing cloud-native environments, particularly AWS and Azure.
• Strong stakeholder management, communication, influencing, leadership, coaching, and mentoring skills.

RX is a global leader in events and exhibitions, leveraging industry expertise, data, and technology to build businesses for individuals, communities, and organisations. With a presence in 25 countries across 41 industry sectors, RX hosts approximately 350 events annually. RX is committed to creating an inclusive work environment for all our people. RX empowers businesses to thrive by leveraging data-driven insights and digital solutions. RX is part of RELX, a global provider of information-based analytics and decision tools for professional and business customers. For more information, visit http://www.rxglobal.com

• We promote a healthy work/life balance across the organisation.
• We offer an appealing working prospect for our people.
• With numerous wellbeing initiatives, shared parental leave, study assistance, and sabbaticals, we will help you meet your immediate responsibilities and your long-term goals.

Working Pattern Working flexible hours - flexing the times when you work in the day to help you fit everything in and work when you are the most productive.