Freelancer profile translated to English.
Back to original languageAbout Ángel
I am a systems engineer specializing in virtualization and Citrix VDI environments. My strength lies in designing, optimizing, and maintaining critical platforms based on VMware, Citrix, and hybrid architectures, ensuring performance, stability, and a fluid user experience.
I focus on process automation with Python and PowerShell, creating Docker containers for internal services, and advanced Linux system administration. I work with validations, error handling, and automatic reporting to reduce repetitive tasks, minimize failures, and improve environment efficiency.
I have experience resolving high-level incidents, analyzing complex problems, and stabilizing systems under pressure. My goal is always the same: to leave infrastructures faster, more reliable, and easier to operate, thanks to a solid, automation-oriented technical approach.
DevOps profile focused on automation and operational efficiency. I focus on reviewing and improving code with a mindset of quality and maintainability, avoiding unnecessary technical debt. I enjoy designing and deploying web applications integrated with Active Directory, ensuring centralized authentication, role-based access control, and consistency with the corporate infrastructure.
Priority on robust CI/CD pipelines, reproducible environments, and traceable processes that reduce manual errors and improve production stability.
Spanish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Alter S.LSystems EngineerDIGITAL AND ITFebruary 2021 - Today (5 years and 4 months)Madrid, SpainSystems EngineeringDesign and operation of Windows and Linux infrastructures, corporate services, networks, security, and web servers. Performance optimization, environment standardization, and advanced incident resolution.Virtualization and CloudAdministration of VMware and Citrix platforms, resource optimization, service deployment, and bottleneck resolution. Participation in the Azure factory project, with tasks in hybrid architecture design, service definition, connectivity, security, and environment modeling.Automation and DevelopmentAutomation with Python and PowerShell for corporate processes, inventories, reporting, validations, API integrations, and task orchestration. Creation and management of Docker containers for internal services and technical utilities.High Availability Automation ProjectComplete automation of the onboarding process: user creation, permissions, licenses, email, and Citrix. Reduction of time from 30 to 3 minutes and elimination of manual errors.DatabasesDatabase administration and support, routine automation, performance optimization, and integrity control.Backups and ContinuityManagement of backup solutions (Veeam, EMC, Networker), automation of checks, reporting, and recovery tests. Definition of RTO/RPO and continuity plans for critical systems.
- SantanderVirtual Environment AdministrationBANKING AND INSURANCEJune 2017 - March 2021 (3 years and 9 months)Madrid, SpainI worked administering complex virtualized environments based on VMware and Citrix. I managed the Citrix VDI platform (VDA, Netscaler, Delivery Controller, Director), resolving high-level incidents, profile debugging, and performance optimization. I also administered Vsphere/Horizon, virtual infrastructure monitoring, and planned security updates in production environments.I participated in the creation and deployment of virtual applications, RSA dual authentication management (physical and software tokens), certificate management with Redtrust, and application of security policies. Additionally, I resolved critical connectivity issues, reviewed firewall rules, and ensured the stable operation of the virtual and remote access ecosystem.
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Education
- MCSAMicrosoft2022Instalación y migración de Windows Server. Configuración de servidores físicos y virtuales. Hyper-V, máquinas virtuales, conmutadores virtuales. Almacenamiento: discos, RAID, espacios de almacenamiento, iSCSI. Servidores básicos: DHCP, DNS, roles y características. Clustering básico y tolerancia a fallos. Backup, recuperación y mantenimiento. 2. Redes con Windows Server Todo lo necesario para administrar una red corporativa Windows. Contenido clave: Configuración avanzada de IPv4 e IPv6. DHCP avanzado: políticas, reservas, failover. DNS avanzado: zonas, delegaciones, alta disponibilidad. Routing, NAT, VPN y DirectAccess. Network Policy Server (NPS): autenticación, RADIUS. Control de acceso, seguridad de red y firewall. Servicios de impresión y acceso remoto. 3. Identidad y Active Directory La parte más importante para cualquier administrador Windows. Contenido clave: Active Directory Domain Services (AD DS). Instalación, promoción y administración de controladores de dominio. Usuarios, grupos, unidades organizativas. Políticas de grupo (GPO): seguridad, scripts, plantillas, directivas. Administración de cuentas de servicio. Sitios, replicación y topología. Active Directory Certificate Services (AD CS). Federaciones (AD FS) y Single Sign-On. Active Directory Lightweight Directory Services (AD LDS). 4. Servicios añadidos dentro del ecosistema Windows Server No eran “oficiales del MCSA”, pero sí parte del temario extendido: WSUS (actualizaciones corporativas). File Server Resource Manager (FSRM). BranchCache. Failover Clustering avanzado. PowerShell para administración a gran escala.
- Higher Degree in Network Systems AdministrationTAJAMAR20201. Sistemas operativos Instalación, configuración y administración de Windows Server y Linux. Gestión de servicios, automatización, scripting, virtualización. 2. Redes Diseño, despliegue y administración de redes corporativas. Routing, switching, VLAN, seguridad, VPN, servicios de red (DNS, DHCP, etc.). 3. Bases de datos Modelado, administración y optimización de sistemas gestores (MySQL, SQL Server, etc.). Copias de seguridad, replicación, seguridad y disponibilidad. 4. Servicios en Internet Servidores web, correo, FTP, directorio activo, contenedores, cloud, balanceo. Despliegue de infraestructuras web completas. 5. Seguridad Endurecimiento de sistemas, controles de acceso, políticas de seguridad, auditoría. Alta disponibilidad, recuperación ante desastres, continuidad de negocio. 6. Aplicaciones web Implantación y despliegue, control de versiones, automatización de procesos. 7. Gestión profesional Proyecto técnico, documentación, metodologías de trabajo, entorno laboral real. Prácticas en empresas.
Certifications
- MCSAMICROSOFT2022
- VCPVMWARE2023