Freelancer profile translated to English.
Back to original languageAbout Carlos
System administrator with over 8 years of experience managing critical infrastructures in multiple sectors: aviation (AENA), national hospitality (McDonald’s Spain), healthcare (Fujitsu), and banking (DXC). Specialized in Windows Server, Active Directory, virtualization (Hyper-V / VMware / Citrix), advanced automation, and cloud (Azure and GCP). Experience in complex migrations, mass deployments, architecture design, high availability, and L3 support. I have managed large-volume environments such as the national infrastructure of McDonald’s Spain (1,300+ restaurants) and critical airport platforms at AENA. Problem-solving, autonomous profile oriented towards reliability, scalability, and business continuity.
Spanish
Native or bilingual
English
Conversational
Catalan
Native or bilingual
Remote only
Primarily works remotely
Experience
- McDonalds EspañaSenior SysAdmin L3 / InfrastructureNovember 2024 - December 2025 (1 year and 1 month)Madrid, SpainActive Directory, GPOs, and security structures administration. Comprehensive management of national infrastructure for 1,300+ restaurants. Advanced work with Google Cloud Platform (GCP) on edge computing projects. Development of advanced PowerShell scripts for critical automation. Windows Server 2019/2022 administration. Meraki firewalls, network, and national connectivity management. Switch mapping, network analysis, and technical documentation. L3 Support and critical incident resolution.
- COS GLOBAL SERVICESAnalyst & System AdministratorOctober 2022 - October 2024 (2 years)SpainAD, DHCP, Google Cloud, Azure, scripting, WSUS, VMware, ticketing, ADFS, Hyper-V, Windows Server, Linux.
- FujitsuIT System AdministratorOctober 2019 - July 2022 (2 years and 9 months)Wintel Systems Technician L2-L3 Admin Citrix VMware / HyperV Powershell Scripting Clusters.
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Education
- Nutanix Hybrid Cloud Fundamentals Certification, Ingeniería informáticaNutanix University2021Nutanix Hybrid Cloud Fundamentals Certification, Ingeniería informática
- ITIL V4 Certification, Informática, comunicaciones y servicios de asistenciaPeoplecert2018ITIL V4 Certification, Informática, comunicaciones y servicios de asistencia
Certifications
- ITILITIL FOUNDATION2019