Nomad Digital

Senior System Administrator

Nomad Digital

full-time

Posted on:

Location Type: Hybrid

Location: Newcastle upon Tyne • 🇬🇧 United Kingdom

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Job Level

Senior

Tech Stack

AnsibleAzureCloudFirewallsKubernetesLinuxPuppetVMware

About the role

  • Design, implement, and maintain Nomad's global network and server infrastructure, including data centres, VMware, and Azure cloud environments.
  • Automate infrastructure provisioning, configuration, and management using tools such as Ansible or Puppet.
  • Configure and manage network security, including FortiGate firewalls, Linux based firewalls, VPNs, and routing protocols like BGP.
  • Administer and secure Linux-based systems (Ubuntu/Debian).
  • Serve as a 3rd line escalation point for complex infrastructure incidents, performing deep-dive troubleshooting and root cause analysis.
  • Develop, maintain, and proactively analyse infrastructure monitoring solutions (e.g., Zabbix) to identify bottlenecks, optimise resource utilisation, and ensure system reliability.
  • Manage and support containerised applications using Kubernetes, including cluster administration and lifecycle management.
  • Create and maintain comprehensive documentation for infrastructure architecture, standard operating procedures, and disaster recovery plans.
  • Collaborate with InfoSec teams to conduct security audits and implement remediation plans based on security best practices (e.g., OWASP Top 10).
  • Drive continuous improvement by evaluating, prototyping, and recommending new technologies and automation opportunities to modernise the infrastructure.
  • Guide and mentor engineers on technical best practices, contributing to their skill development and the overall capability of the team.
  • Translate business requirements into robust technical solutions, effectively communicating the design, risks, and impact to both technical and non-technical stakeholders.

Requirements

  • RHCE or equivalent experience
  • CCNA or equivalent networking experience
  • Kubernetes Certified Administrator or equivalent experience
  • 5 years minimum experience configuring and maintaining network infrastructure
  • Linux based systems: Ubuntu/Debian
  • Automation tools such as Puppet, Ansible etc
  • Security knowledge, OWASP top 10, NMAP scanning
  • Data center Infrastructure
  • Asset management
  • Monitoring solutions like Zabbix
  • VMWare
  • FortiGate Firewalls
  • Routing protocols such as BGP
  • VPN management and deployment
  • Azure infrastructure management
  • Good communication, planning and co-ordination skills
  • The ability to work as both an independent problem solver and support the wider team
  • The ability to adapt to fit the demands of the business
  • Ability to learn on the job.
Benefits
  • Health Care Cash Plan
  • Life Cover & Critical Illness Cover
  • Contributory Pension Scheme via Aviva
  • 25 Days of Annual Leave with enhanced leave based on tenure
  • Option to buy an extra 5 days of annual leave per year
  • Employee Referral Scheme / Employee Recognition Schemes
  • Company Sick Plan

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
network infrastructure configurationLinux administrationautomation with Ansibleautomation with PuppetKubernetes managementnetwork security managementtroubleshootinginfrastructure monitoringdata center managementrouting protocols
Soft skills
communication skillsplanning skillscoordination skillsproblem solvingteam collaborationadaptabilitycontinuous improvementmentoringtechnical documentationstakeholder communication
Certifications
RHCECCNAKubernetes Certified Administrator