Graphcore - Linux Engineer

• Logging and solving support requests face-to-face and via the ticketing system. • Managing and supporting Linux-based systems, providing Layer 1 & 2 support. • Security patching, including risk assessment for Linux environments. • Collaborating with engineering teams to manage hybrid cloud and on-prem servers. • Maintaining Infrastructure-as-Code specifications to deploy and automate changes. • Handling key infrastructure services such as DNS, DHCP, VPN, and LDAP. • Maintaining and supporting the virtualisation platform. • Detailing solutions and maintaining a clear, up-to-date internal knowledge base. • Essential: • Excellent communication and customer service skills. • Strong understanding of troubleshooting principles and methodical problem-solving. • Over 5 years of experience in System Administration concentrating on delivering essential infrastructure services and automation. • Strong Linux administration skills in Debian & RedHat derivatives on bare metal and virtual machines. • Good networking skills such as VLANs, VPNs, Wi-Fi, routing, and subnetting. • Hands-on experience building and managing CI/CD pipelines (e.g., Jenkins, GitLab CI). • Experience in handling Infrastructure-as-Code with Terraform, Puppet, Ansible, or equivalent tools. • Managing Virtualisation Platforms like VMware ESXi/vSphere and KVM/libvirtd. • Desirable • Experience with identifying network/storage/CPU/RAM bottlenecks across complex workloads. • Familiarity with various monitoring solutions and stacks (e.g., Zabbix, Prometheus, Grafana Mimir, Open Telemetry). • Experience handling web servers, load balancers, and reverse proxies (e.g., ha-proxy, nginx). • Proficiency with containerisation frameworks and orchestration (e.g., Docker, containerd, Kubernetes). • Python programming skills, with the ability to write code to interact with APIs, process data, and build small applications.