Design, deploy, maintain, and optimise the IT infrastructure (servers, networks, virtualization and storage systems) to ensure availability, security and performance of services for internal and external users.

Key Responsibilities

Install, configure and administer Windows and Linux servers as well as network appliances (switches, firewalls, routers).
Manage virtualisation environments (VMware, Hyper‑V or equivalents) and storage solutions (SAN/NAS).
Provide proactive monitoring and Level‑2/3 support for system and network incidents.
Implement security policies (patch management, access control, backups, disaster‑recovery plans).
Participate in design and rollout of infrastructure projects (migrations, consolidations, bandwidth upgrades).
Document procedures, configurations and incidents in the internal knowledge base.
Collaborate with internal teams (development, support, management) and external vendors to meet SLA requirements.
Conduct regular audits and propose optimisation measures to reduce infrastructure costs.

Essential Qualifications

Degree in Computer Science, Networking or a related technical field.
Strong knowledge of Windows Server and Linux operating systems (Red Hat, Ubuntu, etc.).
Solid experience in network administration (TCP/IP, VLAN, VPN, IPv6, Cisco, Juniper).
Familiarity with virtualisation platforms (VMware vSphere, Hyper‑V) and storage solutions.
Understanding of cybersecurity concepts (firewalls, IDS/IPS, patch management, backups).
Ability to troubleshoot complex incidents and work under pressure.
Excellent written and verbal communication skills in English; French proficiency is a plus.
Preferred certifications: CCNA/CCNP, VCP, MCSE or equivalent.

Desired Experience

Minimum 3 years of experience in system and network administration, preferably in a medium‑to‑large corporate environment.
Maximum 10 years of experience, with demonstrated involvement in large‑scale projects or infrastructure management.
Experience in a multilingual or international setting is an advantage.

Salary & Benefits

Annual gross salary ranging from CHF 85,000 to CHF 100,000, dependent on profile and experience.
Full‑time position with an activity rate of 80 % to 100 % based on service needs.
Swiss social security contributions (AVS, AI, APG, occupational pension) covered by the employer.
Complementary retirement plan and profit‑sharing participation.
Meal voucher or equivalent allowance.
Opportunities for continuous training and employer‑funded professional certifications.
Modern workplace in Sion with easy access to public transport and parking facilities.

IT Systems & Network Administrator (M/F) – 80–100%