Job Summary: We are seeking a proactive Systems and Network Administrator to manage our technological infrastructure, ensuring efficiency, security, and maintenance of hardware and software. Key Highlights: 1. Stable working environment with interesting projects 2. Responsible for full management of the technological infrastructure 3. Collaboration with international team and implementation of cybersecurity We are looking for a proactive candidate with experience in systems and network administration to join our team in Constantí. You will be responsible for the full management of our technological infrastructure, ensuring that everything operates correctly, securely, and efficiently. This includes installation, updating, and maintenance of hardware and software. You will also manage environments such as Windows Server, Active Directory, DNS, DHCP, and virtualization with Hyper\-V. Your role will be critical in implementing and reinforcing cybersecurity and data protection policies, as well as managing network equipment including routers, switches, and firewalls. A stable working environment with interesting projects is offered. We value the ability to resolve helpdesk incidents, provide support, and maintain up\-to\-date documentation. Collaboration on security regulations and risk prevention, strong communication skills—especially with our international team—and availability for rotating on\-call duties are expected. A Higher Vocational Training Degree in Computer Science or a related field is required. A minimum of 3 years’ experience in systems administration and technical support is preferred. Demonstrable experience in administering Windows Server, Active Directory Services, Hyper\-V, DNS, and DHCP is essential. A solid understanding of IT security principles—including endpoint protection, network and server security—is fundamental. Knowledge of network equipment (routers, switches, Wi\-Fi devices, firewalls), as well as TCP/IP routing and switching, is desirable. A B2 level or higher in English is required due to daily interaction with teams in the Netherlands. Availability for rotating on\-call duties is required.