About Oscar Alejandro
¡Hola! Soy Ingeniero de Redes y Seguridad con amplia experiencia diseñando, migrando y asegurando infraestructuras críticas empresariales. Mi especialidad es fusionar el mundo de las redes tradicionales con arquitecturas de Data Center de última generación (SDN) y entornos de alta seguridad.
He liderado proyectos complejos que integran redes de campus y centros de datos con firewalls de nueva generación y sistemas de balanceo de carga robustos, asegurando la alta disponibilidad y la continuidad del negocio.
¿En qué puedo aportar valor a tu proyecto?
Data Center y SDN: Despliegue, operación y migración de fabrics Cisco ACI (Multi-Pod, Multi-Site, L3Out) y entornos tradicionales de alta densidad con Cisco Nexus (NX-OS).
Redes Tradicionales (Core/Routing/Switching): Diseño robusto de redes campus y WAN utilizando protocolos de enrutamiento avanzados (BGP, OSPF, EIGRP) y arquitecturas Cisco tradicionales.
Seguridad Perimetral y NGFW: Implementación, políticas de filtrado avanzadas y migración de plataformas Palo Alto Networks y Fortinet (Fortigate). Integración nativa con Data Centers (Service Graphs/PBR).
Balanceo y Disponibilidad (L4-L7): Configuración y optimización de F5 BIG-IP (LTM, GTM/DNS, APM) para la entrega segura de aplicaciones.
Control de Acceso y Visibilidad: Diseño y despliegue de Cisco ISE para segmentación de red, autenticación 802.1X (Cableado/Wireless) y políticas de TACACS+/RADIUS.
Si buscas un profesional autónomo que entienda tu red de extremo a extremo (desde el switch de acceso hasta el firewall perimetral y el balanceador), ¡hablemos de tu próximo reto!
Spanish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- ASLAMSenior Network and Security Engineer N3November 2023 - Today (2 years and 8 months)Madrid, SpainWorking at big client on different projects, also giving support to daily incidents which has been escalated becoming critical because of their complexity. Daily job, projects and incidents or new requirements include different technologies like:Cisco - Routing ( BGP - OSPF) and switching. Cisco SDWAN. Cisco ISE (Network control access).
- SEIDORNetwork Security Engineer N3DIGITAL AND ITMarch 2023 - November 2023 (8 months)Barcelona, SpainWorking at different projects within the company, mainly with the below technologies.Cisco.........
- AMARIS ConsultingNetwork Security EngineerOctober 2020 - March 2023 (2 years and 5 months)Working at customer ´ s premises for a pharma company in their NOC as a PM (Project Manager) for the EoL (End of Life) project,• - Manager of the project, defining scope and being active part during the execution.• - Specialist of the LAN technology within the company, taking the role for the network redesign based on their necessities.• - Support for high impact issues in the LAN of the client.• - Manager of 8 members team, assigning daly tasks, and monitoring all of those activities.
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Education
- Máster in Project ManagementUniversity of Barcelona2023Máster in Project Management
- Telecommunications EngineerUniversidad Distrital Francisco Jose de Caldas2015Telecommunications Engineer
Certifications
- Cisco Certified Specialist - Security Identity Management (CCNP ISE)cisco2025
- Cisco Certified Specialist - Data Center Core (CCNP DCCORE)Cisco2024