**Description:** ---------------- If you are motivated to work in a critical and highly secure technological environment, this position will allow you to contribute your expertise in UNIX/Linux systems and networking within a high-impact project in the aerospace sector. **Conditions** * Contract: Permanent * Work mode: 100% on-site * Workplace: Gavà (Barcelona) * Working hours: Standard office hours * Salary: Based on professional experience. €35,000–€40,000 gross per annum. **Your responsibilities** * Administer and maintain UNIX/Linux-based systems in critical environments. * Manage local area networks (LAN) and data communications. * Work on X86 architectures ensuring availability and performance. * Collaborate closely with Indra’s technical team. * Participate in rotating on-call duties (one week on, one week off, 24h coverage). * Carry out occasional short-term business trips (maximum 3 per year, domestic). **Mandatory requirements** * Experience administering UNIX/Linux systems (Red Hat preferred). * Knowledge of LAN networks and Cisco equipment. * Experience with X86 architectures. * Degree in Telecommunications or Computer Engineering (Technical Engineer level). * Intermediate English level (technical reading proficiency). * Willingness to travel occasionally. **Desirable qualifications** * Prior experience in mission-critical or high-availability environments. * Certifications in Linux, Cisco, or networking. * Knowledge of automation and scripting. * Strong communication skills and ability to work effectively in a team. **What do we offer?** * Competitive salary commensurate with experience * Permanent contract or option for a commercial contract * 22 working days of vacation per year * Flexible compensation plan: Health insurance, childcare vouchers, transportation vouchers * Training in Technology and Soft Skills * Referral program: €500 for each recommended candidate who joins us **Digital Group** We are a team of over 100 technology professionals, offering stable projects with leading national and international clients, developing solutions in Artificial Intelligence, Cloud, Cybersecurity, etc. We commit to supporting you throughout every phase of the project, ensuring your professional growth alongside us and recognizing the value of your contribution. Do you want to stay up-to-date with the latest technologies and seek new challenges? Send us your CV and we’ll contact you!