> Markdown version of [/jobs/ext/3024301-administrador-a-de-sistemas](https://www.wearedevelopers.com/jobs/ext/3024301-administrador-a-de-sistemas). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Administrador/a de Sistemas - **Company:** GRUPO ADECCO - **Location:** León, Spain - **Contract:** Internship / Graduate position - **Skills:** Active Directory, Amazon Web Services, Bash Shell, Cloud Computing, Databases, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), Hyper-V, Virtual Private Networks (VPN), Python (Programming Language), PostgreSQL, Microsoft SQL Server, Windows Servers, MySQL, NoSQL, Windows PowerShell, Security Information and Event Management, TCP/IP, Virtual Local Area Networks, Virtualization Technology, Firewalls (Computer Science), Nessus, Vulnerability Analysis, Vmware - **Published:** September 22, 2026 - **Apply:** https://www.adecco.com/es-es/ofertas-trabajo/administrador-a-de-sistemas-leon-leon/1a363cdc41363e29a2906df2f586d5a6 ## About the Role Experiencia de 3 a 5 años en un rol de administración de sistemas, con conocimiento sólido en: Bases de datos: Administración avanzada de SQL Server (imprescindible). Valorable: MySQL, PostgreSQL y NoSQL. Comunicaciones: Gestión de Asterisk, SIP y CTI. Sistemas Operativos: Linux/Unix a nivel avanzado. Windows Server, Active Directory y GPOs. Cloud y Virtualización: Administración en AWS. Experiencia consolidada con VMWare e Hyper-V. Redes y Seguridad: TCP/IP, DNS, DHCP, VLANs, VPNs, firewalls (Palo Alto) y segmentación. SIEM, análisis de vulnerabilidades (Nessus), ISO 27001, GDPR, NIST. Automatización y Scripting: Bash, PowerShell y Python. Monitorización y continuidad: Configuración de herramientas de monitorización. Planificación y ejecución de planes de recuperación ante desastres. ## Description Administración y optimización de infraestructuras. - Gestión de campañas tecnológicas internas. - Mejora continua de sistemas y automatización. - Participación en proyectos técnicos/as estratégicos. ## Related Videos - [Hacking MSSQL on Cloud. All of them. How I became sysadmin on Azure, AWS, GCP and Alibaba.](https://www.wearedevelopers.com/videos/100339-hacking-mssql-on-cloud-all-of-them-how-i-became-sysadmin-on-azure-aws-gcp-and-alibaba) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app) ## Related Articles - [Spanish Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/353-spanish-business-culture-and-etiquette) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)