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CloudSigma
3mo ago

Senior System Administrator(m/w/x)

Zug
Full-timeWith Home OfficeSenior

Description

In this role, you will manage and enhance Linux and Unix systems across a global network, ensuring high performance and security. Your daily responsibilities will include troubleshooting, automating deployments, and mentoring junior staff while contributing to infrastructure improvements.

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Requirements

  • 5+ years of experience in Linux/Unix system administration
  • Solid experience with virtualization technologies (KVM preferred, VMware or similar)
  • Strong experience with monitoring tools and log management solutions (Zabbix, Grafana, ELK stack)
  • Excellent understanding of networking fundamentals (TCP/IP, VPN, firewalls, routing)
  • Deep understanding of infrastructure automation and configuration management with Puppet (Ansible and Foreman experience is a strong plus)
  • Hands-on experience with containerization platforms (Docker, Kubernetes, or similar)
  • Familiarity with incident and change management processes
  • Experience with application and DB deployments in a production environment
  • Scripting skills (Bash, Python, or similar)
  • Fluency in English (both written and verbal)
  • Experience with design, deployment, licensing, and support of VMware products
  • Knowledge of version control systems (GIT, Mercurial)
  • Experience with JIRA Service Management, Confluence
  • Experience with SQL DB queries and PostgreSQL commands
  • Security hardening knowledge (SELinux, AppArmor, SMACK)
  • Highly responsible and detail-oriented
  • Analytical thinker with a problem-solving mindset
  • Team player who thrives in a multilingual, collaborative environment

Work Experience

5 years

Tasks

  • Maintain and improve Linux and Unix-based infrastructure across 20+ global locations
  • Monitor systems proactively and analyze logs
  • Manage incidents to ensure optimal uptime, security, and performance
  • Deploy and troubleshoot critical cloud and on-prem environments
  • Maintain microservices-based virtualization platforms and monitoring solutions
  • Automate system deployments and configuration management using Puppet and Foreman
  • Participate in infrastructure improvement projects for secure architecture
  • Conduct root cause analysis and post-incident reviews
  • Support junior system administrators with technical escalations
  • Document operational procedures and contribute to team knowledge-sharing
  • Deploy and configure a fully automated mail stack and PostgreSQL nodes

Tools & Technologies

LinuxUnixKVMVMwareZabbixGrafanaELK stackPuppetAnsibleForemanDockerKubernetesBashPythonGITMercurialJIRA Service ManagementConfluencePostgreSQLSELinuxAppArmorSMACK

Languages

EnglishBusiness Fluent

Benefits

Competitive Pay

  • Competitive salary

Other Benefits

  • Attractive benefits package

Informal Culture

  • Dynamic international working environment
  • Friendly and informal work atmosphere
  • Knowledge-sharing work atmosphere

Modern Equipment

  • Business mobile and laptop

Flexible Working

  • Hybrid work model

Free or Subsidized Food

  • Snacks and food vouchers

Ergonomic Workplace

  • In-office massages

Career Advancement

  • Career growth opportunities
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