Security Chapter Lead Head of Security Office C Permanent/Freelance About Proximus Luxembourg Proximus Luxembourg is a leading historical player in the ICT & Telecoms markets. Proximus Luxembourg addresses both residential and business markets through its commercial brands Tango, Proximus NXT and more recently Codit. With PSF support status, the company has almost 750 employees. All these experts share a passion for digital technology, a spirit of openness and innovation, and a desire to simplify, connect and make their customers'' personal and professional activities ever more secure. Proximus Luxembourg is actively contributing to the acceleration of Luxembourg''s digitalisation and its economic influence through the development of connectivity, resilient infrastructures and 5G, as well as innovative technologies such as Blockchain, Artificial Intelligence, Machine Learning and IoT. Proximus Luxembourg is a subsidiary of the Proximus group (Euronext Brussels: PROX), provider of digital services and communication solutions operating in the Belgian and international markets. Your mission: As the Security Chapter Lead and Head of Security Office, you will be responsible for providing leadership and direction to our security team within the bi dimensional matrix organization. Your primary focus will be on ensuring the security and integrity of our IT infrastructure, systems, and data. You will lead the Security Office, driving the development and implementation of security policies, practices, and controls aligned with industry standards and regulatory requirements. Collaborating closely with cross functional teams across squads, you will integrate security into all aspects of our operations and development lifecycle. Key Responsibilities: Security Strategy and Governance: Develop and maintain the security strategy and roadmap for the organization, in alignment with business objectives, regulatory requirements, and industry best practices. Establish and enforce security policies, standards, and procedures across squads and chapters, ensuring compliance with relevant laws, regulations, and contractual obligations. Provide strategic guidance and recommendations to senior leadership and the Security Office on the organization''s security posture and risk management. Security Operations and Incident Response: Oversee security operations, including monitoring, detection, and response to security incidents and breaches across the organization. Lead the Security Incident Response Team (SIRT), coordinating efforts to investigate and mitigate security incidents in a timely and effective manner. Develop and maintain incident response plans, playbooks, and procedures, conducting regular tabletop exercises and simulations to test and improve response capabilities. Security Architecture and Engineering: Define and maintain the security architecture and design principles for IT systems, applications, and infrastructure, incorporating security by design princ