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Senior Systems Administrator @ Spectrum IT Recruitment

Fareham, England, GBOnsiteFull-time
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About this role

Salary: £60,000 - 70,000 per year

Requirements

  • Significant commercial experience managing production infrastructure environments.
  • Strong Linux administration, configuration and troubleshooting skills.
  • Experience with cloud platforms such as GCP, AWS or Azure.
  • Hands-on experience with Kubernetes in production environments.
  • Experience with Terraform or similar Infrastructure as Code technologies.
  • Strong networking knowledge, including TCP/IP, DNS, TLS, VPNs, firewalls and routing.
  • Experience managing relational databases and distributed systems, including backup and recovery.
  • Scripting and automation experience using Bash and Python or Go.
  • Strong understanding of infrastructure security, monitoring and operational best practices.
  • Excellent troubleshooting skills and the ability to take ownership of complex technical issues.
  • Experience with Google Kubernetes Engine (GKE) and wider GCP services is advantageous.
  • Experience with Cassandra, ScyllaDB or other distributed database technologies is advantageous.
  • Experience in PCI-DSS, ISO 27001 or SOC 2 compliance environments is advantageous.
  • Experience with GitOps, ArgoCD or Kustomize is advantageous.
  • Experience with Istio or other service mesh technologies is advantageous.
  • Experience with Cloudflare, including DNS, WAF and Tunnels, is advantageous.
  • Experience with Google Workspace administration and Apple device management is advantageous.
  • Experience with disaster recovery planning, testing and implementation is advantageous.
  • Experience with Prometheus, OpenTelemetry or cloud monitoring solutions is advantageous.

Responsibilities

  • Manage, maintain and optimise cloud infrastructure hosted on Google Cloud Platform (GCP).
  • Administer Linux servers, virtual machines and containerised environments.
  • Manage Kubernetes clusters, including Google Kubernetes Engine (GKE).
  • Build and maintain infrastructure using Terraform and Infrastructure as Code practices.
  • Support production databases and distributed systems, including MySQL, Cassandra, Elasticsearch, Redis and RabbitMQ.
  • Maintain and improve backup, disaster recovery and business continuity processes.
  • Configure and troubleshoot networking infrastructure, including VPNs, DNS, firewalls, load balancers and cloud networking.
  • Implement monitoring, alerting and incident management processes.
  • Manage operating system patching, security hardening and infrastructure upgrades.
  • Support corporate IT infrastructure, including Google Workspace, device management and endpoint security.
  • Contribute to infrastructure security and compliance, including PCI-DSS requirements.
  • Identify opportunities to automate processes and modernise legacy infrastructure.

Technologies

  • AWS
  • ArgoCD
  • Azure
  • Bash
  • Cloud
  • Cassandra
  • ElasticSearch
  • GCP
  • GitOps
  • Incident Management
  • Istio
  • Support
  • Kubernetes
  • Kustomize
  • Linux
  • MySQL
  • OpenTelemetry
  • Prometheus
  • Python
  • RabbitMQ
  • Redis
  • Security
  • TCP/IP
  • Terraform
  • WAF

More

We are recruiting for an established technology business specialising in payment infrastructure and transaction processing. This is a Senior Systems Administrator opportunity for a technically strong infrastructure professional who enjoys taking ownership of complex production environments and working with modern cloud technologies. The role is based in Fareham, Hampshire, with office-based work during probation and a minimum of three days onsite per week thereafter. The salary is £60,000–£70,000 plus benefits. Spectrum IT Recruitment (South) Limited is acting as an employment agency in relation to this vacancy.

last updated 44 week of 2026

Skills

Linux server administrationKubernetesTerraformGCPAWSAzureNetworkingTCP/IPDNSTLSVPNfirewall

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