Linux SysAdmin

Forfirm
Lugano, Switzerland
5 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior
Compensation
CHF 208K

Job location

Lugano, Switzerland

Tech stack

Secure Shell (SSH)
Apache HTTP Server
Backup Devices
Bash
System Configuration
Cron
Dynamic Host Configuration Protocol
Debian Linux
Linux
DNS
Perl
HAProxy
Monitoring of Systems
Hypertext Transfer Protocols (HTTP)
Web Servers
Python
Log Analysis
Nagios
Nginx
Package Management Systems
Red Hat Enterprise Linux - RHEL
Ansible
Prometheus
TCP/IP
Transmission Control Protocol (TCP)
Zabbix
Scripting (Bash/Python/Go/Ruby)
Computer Network Technologies
Sysadmin
Infrastructure Automation Frameworks
Iptables
Web Technologies

Job description

We are seeking an experienced Linux/Unix System Administrator. In this role, you will be primarily responsible for managing, configuring, and maintaining a traditional server infrastructure based on Debian and RedHatdistributions.The ideal candidate has solid experience handling standard servers, automating routine maintenance processes (such as security patching), and ensuring the overall reliability, performance, and stability of core business systems.Key Responsibilities

  • System Management & Maintenance: Install, configure, and administer Linux operating systems in production environments (Debian and RedHat/RHEL)
  • Automation & Patching: Implement and maintain automated update systems (e.g., unattended-upgrades on Debian, dnf-automatic / yum-cron on RedHat) ensuring zero or minimal service disruption
  • Troubleshooting: Perform log analysis, monitor system performance, and provide timely resolution for system infrastructure incidents
  • Security Hardening: Manage user permissions, access controls, and local firewalls (iptables/nftables, firewalld)
  • Scripting: Create and maintain Bash scripts (or equivalent) for routine task automation and backup management

Requirements

Do you have experience in TCP?, Requirements (Must Have)

  • Experience: At least 5 years of experience working as a Linux System Administrator
  • Operating Systems: Deep operational knowledge of Debian and RedHat distributions (system commands, package management via apt and dnf/yum)
  • Web Technologies: Proven experience with Apache configuration (VirtualHosts management, modules, SSL/TLS certificates)
  • Scripting: Proficient in writing Bash Python and Perl scripts for system automation
  • Networking: Solid understanding of core networking protocols and services (TCP/IP, DNS, SSH, DHCP, HTTP/S)
  • Mindset: Strong problem-solving skills, attention to detail, and the ability to work independently

Preferred Qualifications

  • Familiarity with Configuration Management tools (especially Ansible, useful for orchestrating multi-node updates)
  • Experience with alternative web servers or reverse proxies (Nginx, HAProxy)
  • Relevant Linux certifications (e.g., RHCSA/RHCE, Linux Foundation LFCS/LFCE, or LPI)
  • Knowledge of infrastructure monitoring tools (e.g., Zabbix, Nagios, Prometheus)

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