System Administrator

🔒 Confidential Employer
Posted 14 August 2025
LOCATION
United Kingdom
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Linux Cisco Puppet KVM virtualization MariaDB/MySQL Firewalls

FULL DESCRIPTION

Summary

This is a full-time SysAdmin role, located in the UK. The SysAdmin will be responsible for day-to-day network administration, providing technical support to users, troubleshooting any technical issues, and supporting information technology systems.

Key Responsibilities

  • Administer, maintain, and troubleshoot Linux-based servers and systems
  • Manage server and network deployments, updates, and patches to ensure security and performance
  • Work with cloud and virtualisation technologies
  • Collaborate with other teams to design, implement, and maintain IT solutions
  • Resolve high-priority incidents, conduct root cause analyses, and drive improvements in service quality.
  • Serve as a technical resource for platform and infrastructure services, maintaining detailed platform documentation.
  • Participate in on-call rotation for out-of-hours support and incident response

Required Skills

  • Strong experience with Linux (preferably CentOS, Rocky Linux, or RHEL) and system deployment.
  • Experience with Cisco, Juniper, VyOS, and Fortigate hardware and firewalls.
  • Proficiency in Puppet for configuration management.
  • Experience with KVM virtualization and managing guest VMs.
  • Basic knowledge of MariaDB/MySQL databases and SQL queries.

About [Employer hidden — view at passion-project.co.uk]

Our growing list of customers includes some of the most prestigious marketplaces and digital marketing businesses in the world such as Zoopla, AutoTrader UK, OnTheMarket, AutoTrader Canada, Idealista, Cars.com, BNP Paribas, Honda, Groupe La Centrale, Subito, REA Group and many others.

We span real estate, automotive, financial services, health care, insurance, veterinary services and many other industries with our call tracking, data and analytics platform.

We are a multilingual company with a love of animals and music.

The Role

This is a full-time SysAdmin role, located in the UK. The SysAdmin will be responsible for day-to-day network administration, providing technical support to users, troubleshooting any technical issues, and supporting information technology systems.

Key Responsibilities

  • Administer, maintain, and troubleshoot Linux-based servers and systems
  • Manage server and network deployments, updates, and patches to ensure security and performance
  • Work with cloud and virtualisation technologies
  • Collaborate with other teams to design, implement, and maintain IT solutions
  • Resolve high-priority incidents, conduct root cause analyses, and drive improvements in service quality.
  • Serve as a technical resource for platform and infrastructure services, maintaining detailed platform documentation.
  • Participate in on-call rotation for out-of-hours support and incident response

Required Skills

  • Strong experience with Linux (preferably CentOS, Rocky Linux, or RHEL) and system deployment.
  • Experience with Cisco, Juniper, VyOS, and Fortigate hardware and firewalls.
  • Proficiency in Puppet for configuration management.
  • Experience with KVM virtualization and managing guest VMs.
  • Basic knowledge of MariaDB/MySQL databases and SQL queries.

Nice to Have Skills

  • Experience with ElasticStack (Elasticsearch, Logstash, Kibana) for monitoring and logging.
  • Experience with Ceph storage and managing large-scale storage environments.
  • Familiarity with Office 365 user management processes.
  • Experience with Zabbix or similar for system monitoring.

Perks of the Role

  • Excellent health care for individual and dependents
  • Generous holiday schedule in addition to the week off between Christmas and New Year.

This Opening

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