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# Systems and Infrastructure Administrator

- **Company:** Ifae-bist
- **Location:** Bellaterra, Spain
- **Contract:** Contract
- **Skills:** Proxmox, Secure Shell (SSH), Amazon Web Services, Amazon Elastic Compute Cloud, Backup Devices, Bash Shell, Ubuntu (Operating System), Dynamic Host Configuration Protocol, Debian Linux, Linux, RAID, Domain Name System (DNS), Virtual Private Networks (VPN), Python (Programming Language), Linux System Administration, Linux Servers, Routing, Red Hat Enterprise Linux, TCP/IP, Virtual Local Area Networks, Virtualization Technology, Zabbix, Scripting, Computer Networking Systems, Computer Network Technologies, Firewalls (Computer Science), Amazon Virtual Private Cloud (VPC), Information Technology, Firewall Services Module, Docker
- **Published:** August 15, 2026
- **Apply:** https://es.trabajo.org/oferta-5001-8d0e79a49482bcd8d7521bddd4cb5905

## About the Role

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

 - 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 The following qualifications will be considered an asset: - 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 Evaluation criteria Points Technical knowledge and professional experience 70 Experience in similar environments within the research sector 20 Initiative and motivation 10 Offered contract - Full-time contract (40 h/week). - Interim Contract to Fill a Vacant Position (3 years). - The position corresponds to the N3 Technician category. - Salary will be

## Description

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


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