Colt provides network, voice and data centre services to thousands of businesses around the world, allowing them to focus on delivering their business goals instead of the underlying infrastructure.
Why we need this roleWe are looking for a Security Architect specialising in Application Security and DevSecOps to join the Security and Resilience – Security Architecture team.
This role will act as a subject matter expert for secure software development and DevSecOps practices, supporting the integration of security controls into Colt’s development pipelines and ensuring applications are secure by design and by default.
The successful candidate will work closely with Engineering, DevOps, Cloud, SOC and Risk teams to embed security throughout the software development lifecycle, ensuring that Colt’s applications and services are designed, built and tested with security as a core requirement.
The Role Combines
Application security architecture and design
DevSecOps pipeline integration and tooling
Security assurance and governance across internally developed applications




You Will Play An Important Role In Supporting
Secure software development practices across Colt
Security integration into CI/CD pipelines (GitLab)
Reduction of vulnerabilities through automated scanning and testing
Assurance of internet-facing applications through structured penetration testing activities
What You Will Do
Provide security architecture expertise for application security and DevSecOps, supporting standards and best practices across the software development lifecycle
Contribute to the target architecture for secure software development, aligned to Colt’s Secure by Design principles
Support the integration of security controls into CI/CD pipelines (GitLab), including automated testing and policy enforcement
Design and implement application security controls, including:
Static Application Security Testing (SAST)
Dynamic Application Security Testing (DAST)
Software Composition Analysis (SCA) / d

📌 Lead Application Security Architect (Madrid)
🏢 Colt Technology Services
📍 Madrid