Job Summary: We are seeking a Senior Systems Administrator to manage critical infrastructures, with a focus on virtualization, storage, Linux/Windows systems, and service continuity in complex technology environments. Key Responsibilities: 1. Administer and evolve virtualization platforms (VMware, Proxmox, KVM). 2. Manage advanced environments such as VSAN, Fault Tolerance, and distributed switches. 3. Administer SAN storage systems, Linux, and Windows Server. **Location:** Madrid, ES **Professional Profile:** IT Infrastructure **Required Experience:** Over 2 years of experience **Position Type:** Do you have experience in **advanced IT systems and infrastructure administration**, and are you interested in working in complex technology environments? ️ We are looking for a **Senior Systems Administrator** to join a technical team managing **critical infrastructures**, with a focus on **virtualization, storage, Linux/Windows systems, and service continuity**. What will you do? * Administer and evolve **virtualization platforms (VMware vSphere, Proxmox, KVM)**. * Manage advanced environments: **VSAN, Fault Tolerance, distributed switches**. * Administer **SAN storage systems** (Fiber Channel, iSCSI). * Manage infrastructures with vendors such as **HP, Dell, NetApp**. * Administer **Windows Server** environments (Active Directory, DNS, CA). * Administer **Linux** systems (Red Hat, CentOS, Debian) and associated services (LDAP, DNS, IdM). * Manage and optimize **PostgreSQL databases** (and related solutions such as pgpool, pgd). * Administer **backup tools** (Veeam, Avamar, Networker). * Monitor systems using tools such as **Nagios or Zabbix**. * Manage **server clusters** in Linux and Windows environments. * Coordinate with **vendors and manufacturers** for support and maintenance. ‍ What are we looking for? * Degree in **Engineering, Computer Science, or related field**. * Solid experience (ideally **+5 years**) in **IT systems administration**. * Advanced experience in **virtualization (VMware vSphere or similar)**. * Experience in **SAN storage management**. * Advanced knowledge of **Windows Server (2019/2022)**. * Experience in **Linux systems administration**. * Experience in **system backup and monitoring**. * Experience in **high-availability and clustering environments**. * Desirable * **VMware VCP certification**. * Experience with **Kubernetes or automation (Ansible)**. * Experience in **defense environments or critical infrastructures**. * Knowledge of specific storage tools (Brocade, HP 3PAR, NetApp). If you would like to learn more about the project and the team, **I’d be delighted to share the details with you!** **What we offer** * **Stability and Future** **✨** Long-term projects at a leading defense company with **over 50,000 professionals**, backed by financial security. * **Innovative and High-Impact Projects** : Work with cutting-edge technologies, delivering impact both nationally and internationally. * **Close and Transparent Environment** : Enjoy direct and fluid communication with managers and colleagues in a collaborative and open environment. * **Autonomy and Flexibility** : You’ll have the freedom to organize your work, with genuine work-life balance adapted to your pace. * **Personalized Career Plan** : Designed to accelerate your professional growth and development. * **Continuous Training** **:** via Open University and Udemy for Business (over 6,000 courses for specialization!). * **Exclusive Well-being Discounts** : Enjoy benefits at gyms, restaurants, stores, leisure activities, and much more as an Indra employee. * **Competitive Compensation** and **flexible compensation plans** tailored to your needs. **What does our selection process look like?** *I* * **Profile Review** \- We evaluate your experience and skills to determine if they align with our requirements. * **Initial Contact (5\-10 min)** \- If you receive a call from an unknown number, it’s our team! A brief conversation to get to know you and address any questions. * **Technical Interview** \- You’ll meet the team, who will explain the project and daily tasks. We’ll also assess your technical knowledge. Additionally, brief psychological and English competency assessments (if required) will be conducted. * **Interview with Talent Acquisition Team** \- We want you to get to know us better as a company: values, career model, skills… so both you and the team can assess mutual fit. * **Offer and Welcome** \- If everything goes well, you’ll join our team and begin this new chapter together! **Estimated Process Duration: 2 weeks.** *Our commitment is to foster workplaces where individuals are treated with respect and dignity, promoting professional development of our staff and guaranteeing equal opportunities in recruitment, training, and promotion—ensuring a workplace free from discrimination based on gender, age, disability, sexual orientation, gender identity or expression, religion, ethnicity, marital status, or any other personal or social circumstance.* **INDRA is a Top Employer 2025!** Join a company certified as one of Spain’s best employers, thanks to our comprehensive HR management and the conditions we offer our professionals.