ICT Systems | Linux Administrator | Permanent | Zurich

Oliver James Group; Zürich; Hybrid; CHF 108,000 - 132,000; Full time

Benefits offered by this job

Challenging Linux infra

Ownership and responsibility

Modern DevOps tooling

Collaborative environment

Job summary

Oliver James Group is seeking an ICT Systems Specialist with strong Linux Administration experience to join our technical infrastructure team in Zurich. The role focuses on operating and developing business-critical IT services in a large, complex environment.

This hands-on position concentrates on Linux server administration, system reliability, automation and the ongoing development of core network services, including DNS, DHCP, Proxy and RADIUS.

Qualifications

• Proven experience in Linux Systems Administration within production environments.
• Strong knowledge of Linux server operations, maintenance, troubleshooting and performance.
• Good understanding of networking technologies, including TCP/IP, DNS, DHCP, Proxy and RADIUS.
• Experience with automation and Infrastructure as Code, ideally Ansible, Git, Bash or Python.
• Exposure to Kubernetes, containers and CI/CD environments would be advantageous.
• Strong problem-solving skills and the ability to work independently.
• A proactive approach to improving infrastructure, automation and system reliability.

Responsibilities

• Administer, maintain and develop Linux server infrastructure within a production environment.
• Ensure the stability, security and availability of business-critical systems and services.
• Manage and maintain core network services, including DNS, DHCP, Proxy and RADIUS.
• Support and develop Linux-based platforms, including Kubernetes, GitLab and CI/CD environments.
• Automate infrastructure and operational processes using Ansible, Git and scripting.
• Troubleshoot and resolve complex issues across distributed systems.
• Plan and implement system upgrades, maintenance and infrastructure improvements.
• Work closely with development and infrastructure teams to improve reliability and operational efficiency.

Skills

Linux Administration

Networking (TCP/IP, DNS, DHCP, Proxy,R

Automation

Ansible

Git

Bash

Python

Kubernetes

CI/CD

Tools

Kubernetes

GitLab

Ansible

Git

Bash

Python

Job description

Job Title: ICT Systems Specialist - Linux Administration

Location: Zurich, Switzerland (2 days per week in the office)

Type: Permanent position (100%)

Budget: Up to 120,000 CHF per annum based on relevant experience and suitability - final offer is managers discretion.

We are looking for an ICT Systems Specialist with strong Linux Administration experience to join a technical infrastructure team responsible for operating and developing business-critical IT services within a large, complex environment.

This is a hands‑on infrastructure role, focusing primarily on Linux server administration, system reliability, automation and the ongoing development of core network services.

Your Profile

• Proven experience in Linux Systems Administration within production environments.
• Strong knowledge of Linux server operations, maintenance, troubleshooting and performance.
• Good understanding of networking technologies, including TCP/IP, DNS, DHCP, Proxy and RADIUS.
• Experience with automation and Infrastructure as Code, ideally Ansible, Git, Bash or Python.
• Exposure to Kubernetes, containers and CI/CD environments would be advantageous.
• Strong problem‑solving skills and the ability to work independently.
• A proactive approach to improving infrastructure, automation and system reliability.

The Role

• Administer, maintain and develop Linux server infrastructure within a production environment.
• Ensure the stability, security and availability of business‑critical systems and services.
• Manage and maintain core network services, including DNS, DHCP, Proxy and RADIUS.
• Support and develop Linux‑based platforms, including Kubernetes, GitLab and CI/CD environments.
• Automate infrastructure and operational processes using Ansible, Git and scripting.
• Troubleshoot and resolve complex issues across distributed systems.
• Plan and implement system upgrades, maintenance and infrastructure improvements.
• Work closely with development and infrastructure teams to improve reliability and operational efficiency.

What's on Offer?

• A technically challenging Linux infrastructure role.
• High levels of ownership and responsibility.
• The opportunity to work with modern infrastructure, automation and DevOps technologies.
• A collaborative technical environment with scope to influence infrastructure improvements and development.