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Aleix Castillo Casals is a Principal Network Security Engineer at AT&T, bringing 20 years of diverse experience in IT, focused on project management and technical teams. Aleix has expertise in security architecture, design, and capacity planning, and has successfully coordinated data services implementations for international clients, including major telecommunications companies. Previous roles include Security Engineer for Managed Security Services and IT Network Administrator, where Aleix developed significant networking skills and project management acumen. Aleix holds multiple Cisco certifications and a degree in Telecommunications Engineering.