Principal Application Security Engineer - Global Impact

RX Global

Richmond

On-site

GBP 110,000 - 140,000

Full time

3 days ago

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Job summary

RX Global is seeking a Principal Application Security Engineer to lead application security across its global technology estate. You will partner with engineering leadership to embed security by design and enable teams to deliver secure software at scale.

Reporting directly to the CISO, this role acts as the senior technical authority for secure software delivery, guiding threat modelling, security architecture reviews, and security posture management across cloud-native environments, APIs, and

Qualifications

Significant experience in Application Security, Product Security, or Security Engineering.
Strong understanding of modern software development methodologies and engineering practices.
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.

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 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, SCA, container security, IaC 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.