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# Senior Systems Administrator

- **Company:** Spectrum IT Recruitment
- **Location:** Chilworth, UK
- **Experience:** Expert
- **Salary:** £60,000.0 - £70,000.0
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Microsoft Azure, Backup Devices, Bash Shell, Cloud Computing, Databases, Relational Databases, Linux, Disaster Recovery, Distributed Data Store, Distributed Systems, Domain Name System (DNS), Elasticsearch, Virtual Private Networks (VPN), Python (Programming Language), Linux System Administration, Linux Servers, MySQL, Routing, PCI Data Security Standards, RabbitMQ, Redis, Prometheus, TCP/IP, Virtual Machines, Computer Networking Systems, Transport Layer Security, Google Cloud, Load Balancing, Cloud Monitoring, Istio, Firewalls (Computer Science), Kubernetes, Infrastructure Automation Frameworks, Information Technology, Cassandra, Cloudflare, Gsuite, Terraform
- **Published:** October 31, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5946832119

## About the Role

* 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.

## Description

* 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