Specialist System Administrator Linux

We are looking for an Specialist System Administrator Linux for the Hosting Technology team:  KEY RESPONSIBILITIES * Platform Management: Build, maintain, and optimize large-scale Linux platforms and Ceph storage clusters. * Continuity & Support: Provide Level 3 support, working closely with Level 2 teams and participating in on-call rotations (approx. 1 week every 6) after an initial adaptation period. * Knowledge Transfer: Collaborate with colleagues in Cologne (Germany) to absorb institutional knowledge of legacy systems and document critical processes. * Continuous Improvement: Identify performance bottlenecks and propose/implement proactive improvements to the existing architecture. WHAT WE'D LIKE TO SEE * Experience: Minimum of 3 years in Linux systems administration, with at least 1-2 years in team leadership or technical management roles. * Storage: Proven experience operating Ceph clusters. * Automation & Configuration: Strong command of configuration management tools (Puppet, Saltstack) and orchestration tools (Ansible, Terraform). * Scripting: Advanced proficiency in BASH and Python. * Cloud & Virtualization: Hands-on experience with OpenStack. * Observability: Proficiency with monitoring tools such as Prometheus and Grafana. EXPECTATIONS * Being part of a multidisciplinary team passionate about technology, with an open and dynamic culture, where experimentation and discussion are encouraged to progress at work, always with respect and inclusion. * We offer personalised career plans, annual performance evaluations and programmes to develop skills. * We operate in Spanish and English and therefore provide unlimited language training. We work on international projects and define best practices with United Internet partners. * We have flexible start and finish times, respecting a schedule of meetings in the central part of the morning and a range of work from 7 a.m. to 9 p.m. with a hybrid model in one of our offices (Alcobendas, Valencia, Barcelona, Seville or Logroño). ---------------------------------------------------------------------------------------------------------------------------------- At Arsys we value diversity and welcome all applications regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age, as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.

OPPORTUNITY Support mission critical IT systems that enable F-35 operations and build a strong foundation in defense IT environments. Together with the Belgian Defence, ILIAS Solutions manages the full data lifecycle and maintenance of the F-35 Autonomic Logistics Information System at the Operational Squadron Facility on Kleine Brogel Air Base. MEANINGFUL WORK IN A MISSION DRIVEN ENVIRONMENT Reliable IT systems support mission readiness and flight operations. As Junior System and Network Administrator, you contribute to a secure environment where systems remain stable and available. You support the infrastructure behind operational workflows and help ensure that data remains accessible and reliable. COMPLEX CHALLENGES, CLEAR SOLUTIONS Systems operate in a controlled defence environment with strict procedures and high reliability requirements. Infrastructure, networks and data flows must work together without disruption. You support system and network environments and help maintain continuity within operational IT systems used in F-35 operations. THE IMPACT YOU HELP CREATE You support stable and secure IT systems that enable flight operations. Your work contributes to reliable execution and supports mission readiness in a real-world defence environment. YOUR MISSION You are a junior IT professional with a basic foundation in systems and networking. You work in a structured way, follow procedures and show strong motivation to learn. You contribute to stable IT operations in a secure environment. • Basic knowledge of Windows Server and Linux environments • Understanding of networking fundamentals such as TCP/IP and LAN/WAN • Familiarity with infrastructure concepts such as backup and virtualization • Strong motivation to develop in system and network administration • Clear communication in English and a team oriented mindset • Willingness to work full time on site at Kleine Brogel Air Base • Eligibility to obtain a security clearance SUPPORT CORE DEFENSE CAPABILITIES • Fleet Management through system availability • Expeditionary Operations through reliable IT environments • Total Asset Visibility through stable data systems • MRO and Sustainment through system support and continuity SYSTEMS THINKING AND ANALYTICAL STRENGTH You understand how systems, networks and data flows connect. You follow dependencies, recognize patterns and support stable system performance in a structured environment. WORKING ACROSS TEAMS AND FUNCTIONS You work closely with senior system and network administrators in a controlled defence environment. Clear communication in English and a team oriented mindset support collaboration and daily operations. BUILD YOUR FUTURE WITH ILIAS GROW THROUGH CAPABILITY AND INNOVATION You build a strong foundation in system and network administration by working on mission critical IT systems. You gain hands on experience in a structured defence environment and learn how infrastructure supports real operations. GROW IN A MISSION DRIVEN ENVIRONMENT At ILIAS Solutions, Defense Logistics and operational systems come together. You contribute to IT environments that support real flight operations in collaboration with Belgian Defence. BUILD CAPABILITY OVER TIME At ILIAS, learning is embedded in the way we work. Development takes place through daily exposure to complex systems, supported by a structured and modern Learning Management System. Clear development paths provide insight into current capability and possible next steps. From onboarding to more advanced levels, learning remains practical and directly linked to the work. We invest in time, tools and guidance to support consistent development. As capability grows, so does the impact you can make within the organization. CONTRIBUTE TO WHAT COMES NEXT You grow into a system and network specialist and contribute to stable IT environments that support mission readiness. Your development supports long term continuity within defence operations. CONTACT Interested in starting your career in a high impact defence IT environment Apply directly or contact tim.van.dam@ilias-solutions.com We are excited to get to know you