Open Position Systems and Infrastructure Administrator (IT)

Opening Date: October 6, 2026

Closing Date: Until Filled

Ref:2026-42_Technical Division_IT

About IFAE

The Institut de Física d’Altes Energies (IFAE) is a public consortium of Generalitat de Catalunya, the Autonomous Government of Catalonia, and Universitat Autònoma de Barcelona (UAB, a public university) whose main goal is to carry out research and to contribute to the development of high energy physics from a theoretical, experimental and technological point of view. IFAE has the status of a “University Institute" attached to UAB and its premises are within the campus of the university.

About IFAE’s Technical Division

The Technical Division of IFAE is constituted by a multidisciplinary team with the mission to make the scientist’s projects a reality. We oversee the design and development of the mechanics, electronics, and software for the instrumentation required for each project.

IFAE-BIST is the Institute for High Energy Physics (Institut de Física d’Altes Energies) inside the Barcelona Institute for Science and Technology. At IFAE we conduct experimental and theoretical research at the frontiers of fundamental physics, namely in Particle Physics, Astrophysics, Cosmology, and Applied medical Physics.

We are involved in the ATLAS project at the LHC at CERN, the T2K neutrino experiment in Japan, the MAGIC and the CTA - LST telescopes in La Palma, the Dark Energy Survey project in Chile, the ESA Euclid satellite, and the VIRGO Gravitational Waves experiment and Einstein Telescope, among others. We also work at the cutting edge of detector technology developing pixel detectors for High Energy Physics,



telescope cameras, and detectors for medical imaging and other scientific and industrial fields.

Job Description

The selected candidate will participate in the administration and maintenance of the organization’s IT infrastructure, providing second- and third-level support for Linux platforms, virtualization, storage, networking, and security. The role also involves contributing to infrastructure development projects and public procurement processes related to IT solutions.

We are looking for a proactive candidate with strong problem-solving skills and proven experience in the administration of critical IT infrastructures.

Main responsibilities

- Administer and maintain Linux servers (Debian and Ubuntu).
- Manage Proxmox VE virtualization platforms.
- Administer and maintain OPNsense firewalls.
- Manage Synology and QNAP NAS storage systems.
- Administer backup solutions and perform restoration tests.
- Monitor the IT infrastructure using Observium.
- Manage and renew SSL/TLS certificates.
- Administer infrastructure services such as DNS, DHCP, VPN, SSH, and related services.
- Resolve second- and third-level incidents related to systems and networking.
- Participate in projects aimed at improving and modernizing the organization’s IT infrastructure.
- Prepare, maintain,



and update technical documentation.

Specific Requirements And Desirable Qualifications

- Higher Vocational Training Diploma in Networked Computer Systems Administration (ASIX) or an equivalent qualification.
- At least 2 years of experience administering Linux environments (Debian and/or Ubuntu).
- Experience administering Linux services using systemd.
- Strong knowledge of SSH and Linux server administration.
- Experience with Proxmox VE virtualization platforms.
- Solid knowledge of networking technologies, including:
- TCP/IP
- VLANs
- Routing
- DNS
- DHCP
- VPN

- Experience administering OPNsense firewalls.
- Knowledge of NAT and firewall policies.
- Experience managing SSL/TLS certificates.
- Experience administering Synology and QNAP NAS storage systems.
- Knowledge of RAID, NFS, and SMB.
- Experience with backup strategies, data restoration, and backup verification.
- Experience with infrastructure monitoring tools, preferably Observium.
- Experience with Docker and Docker Compose.
- Previous experience working in a public institution or research center.
- Technical experience participating in public procurement (tender) processes.
- Knowledge of Wazuh.
- Scripting skills (Bash and/or Python).
- Knowledge of Zabbix.

Desirable Qualifications

- Knowledge of Rocky Linux or Red Hat Enterprise Linux (RHEL).
- Experience with Podman.
- Experience working with AWS cloud environments, including:
- EC2
- VPC
- Security Groups

- Holding or currently pursuing Linux certifications such as LPIC-1, RHCSA, or equivalent certifications.

Evaluation criteria

The evaluation criter

📌 Systems and Infrastructure Administrator (Sardañola del Vallés)
🏢 IFAE
📍 Sardañola del Vallés