About the Responsibilities

• Lead the Cyber Defense team. Own daily operational security performance across a distributed, high-availability telecoms environment. 
• Serve as Incident Commander for significant security incidents. Maintain and continuously improve global incident response playbooks and readiness programmes. 
• Oversee the design, deployment, and lifecycle management of critical security technologies: SIEM, SOAR, EDR/XDR, IAM/PAM, network security, and cloud security platforms. Maintain technical standards, reference architectures, and hardening guidelines globally. 
• Own telco-specific security domains: network core protection, signalling security (SS7/Diameter), mobile network security (4G/5G), OSS/BSS security, and cloud-native telecom environments. 
• Own the security risk register day-to-day. Lead technical risk identification, quantification, and mitigation. Oversee penetration tests and red-team exercises; ensure findings are remediated promptly. 
• Oversee Security Engineering: architecture review process, SDLC security, GSMA SGP compliance in product delivery. Ensure security is embedded in designs across Network Engineering, Cloud, IT, and Product. 
• Approve operational security platform changes. Represent Security in the Engineering change process.