I’m Ernesto J. Diaz Mejia, a Network & Cybersecurity Engineer with 4+ years of hands-on experience securing medium-to-large enterprise and ICS/OT networks. I specialize in IP routing, switching, firewall administration, load balancing, and performance validation using RFC benchmarks, and I’ve led security deployments on Cisco gear and shipboard networks. Beyond that, I’m an AI & Data Specialist with 4+ years in machine learning, data annotation, and quality assurance across cybersecurity, IoT, and business domains. I enjoy collaborating with cross-functional teams to translate complex technical challenges into practical, scalable solutions that improve reliability and security.…I’m Ernesto J. Diaz Mejia, a Network & Cybersecurity Engineer with 4+ years of hands-on experience securing medium-to-large enterprise and ICS/OT networks. I specialize in IP routing, switching, firewall administration, load balancing, and performance validation using RFC benchmarks, and I’ve led security deployments on Cisco gear and shipboard networks. Beyond that, I’m an AI & Data Specialist with 4+ years in machine learning, data annotation, and quality assurance across cybersecurity, IoT, and business domains. I enjoy collaborating with cross-functional teams to translate complex technical challenges into practical, scalable solutions that improve reliability and security.WWWW…