IT-Infrastructure System Engineer

The Role
We are looking for a motivated
IT Infrastructure & Systems Engineer
to join our Infrastructure & Network Engineering team.
Our team designs, operates and maintains the company’s physical and virtual infrastructure across multiple colocation sites and offices. We take responsibility for servers, storage, virtualization, Linux systems, core infrastructure services, hardware lifecycle management and operational monitoring.
Your primary focus will be Intellico’s data-center and server infrastructure, including Proxmox, Ceph, ZFS and Linux virtual machines. The position also includes selected corporate IT and networking responsibilities.
You will work closely with the team to ensure that the infrastructure supporting our telecommunications and messaging platforms remains reliable, secure and maintainable.
Key Responsibilities
Operate and maintain physical server and storage infrastructure across Intellico’s colocation sites
Coordinate hardware installation, replacement, upgrades, cabling, rack space and power connections
Monitor hardware health, power, temperature, storage capacity and environmental conditions
Operate and maintain Proxmox VE clusters, virtual machines and Linux operating systems
Operate and maintain Ceph and ZFS storage environments
Provision, patch, upgrade and monitor Linux servers and infrastructure components
Operate core infrastructure services such as DNS, DHCP, NTP, internal certificates and related network services
Implement and test backup, restore and disaster-recovery procedures
Maintain infrastructure inventories, lifecycle plans, warranties, spare equipment and technical documentation
Support automation and configuration management for recurring infrastructure tasks
Coordinate technical work with colocation providers, hardware vendors and external service providers
Support Cisco networks, Palo Alto firewalls, VPNs and general connectivity troubleshooting
Administer Microsoft 365, Microsoft Entra ID, Active Directory and Exchange Online
Support employee devices, office infrastructure, Wi-Fi, telephony and meeting-room equipment where required
Participate in incident management, infrastructure changes and the compensated on-call rotation
Requirements
Practical experience with Linux system administration and server infrastructure
Experience with virtualization platforms such as Proxmox, VMware or comparable technologies
Understanding of storage technologies, preferably Ceph, ZFS or distributed storage systems
Good knowledge of server hardware, operating-system installation, patching and monitoring
Understanding of backup, restore, high availability and disaster-recovery concepts
Good knowledge of TCP/IP, DNS, DHCP, NTP and general network services
Experience with Bash, PowerShell, Python or another scripting language is an advantage
Knowledge of Cisco networking, Palo Alto firewalls or VPN technologies is an advantage
Experience with Microsoft 365, Microsoft Entra ID or Active Directory is an advantage
Strong soft skills, including problem-solving, teamwork, ownership and communication
Education in IT, systems engineering, computer science or a related field, eg:
Informatiker/in EFZ, Fachrichtung Plattformentwicklung
ICT-Fachmann/-frau EFZ
ICT-System- und Netzwerktechniker/in mit eidg. Fachausweis
A comparable technical or university qualification
Fluent in English, German is an advantage, resident in Switzerland
Practicalities
Location: Freienbach, Switzerland
Employment: Permanent, full-time position, 80%-100%
Working model: Primarily office-based, with up to two home-office days per week where operational responsibilities allow
Schedule: Normal working hours with participation in an on-call rotation
Travel: Occasional visits to other Intellico offices and colocation facilities
What We Offer
A broad technical role with direct access to data-center infrastructure, networking, virtualization and corporate IT
The possibility to gradually develop into a systems, network, security or platform specialization
Meaningful responsibility in a small team without unnecessary organizational layers
High-quality technical equipment and a modern, comfortable office in Freienbach close to public transport