Senior Site Reliability Engineer – MAAS & GPU Infrastructure

About the role

Pragmatike is looking for a Senior Site Reliability Engineer to own and scale a distributed infrastructure platform that includes bare‑metal GPU nodes, Kubernetes, virtualization, networking and multi‑site environments. You will work hands‑on from low‑level hardware provisioning through high‑level automation and observability.

Key responsibilities

• Operate and maintain large‑scale Debian/Ubuntu Linux infrastructure on both bare‑metal and virtualised environments.
• Own MAAS‑based bare‑metal provisioning, including PXE, cloud‑init, node lifecycle and API/CLI automation.
• Run production Kubernetes clusters – upgrades, node pools, networking, storage, security hardening and troubleshooting.
• Design and manage multi‑site networking (VLANs, L2/L3 routing, VPNs, firewalls, DNS).
• Automate provisioning and operations with Ansible, Bash/Python, OpenTofu/Terraform and Git‑based workflows.
• Maintain observability platforms such as Prometheus, Grafana, Alertmanager and VictoriaMetrics/VictoriaLogs.
• Lead incident response, on‑call coverage, post‑mortem analysis and reliability improvements.
• Manage virtualization platforms (Proxmox, KVM/libvirt, OpenStack, VMware) and GPU passthrough where required.

Required profile

• 5+ years of hands‑on SRE, infrastructure or platform engineering experience.
• Deep expertise in Linux administration (Debian/Ubuntu) and MAAS bare‑metal provisioning.
• Proven production experience with Kubernetes, including networking, storage and upgrades.
• Strong network engineering skills across VLANs, L2/L3 routing, bonding, VPNs, firewalls and DNS.
• Extensive automation experience with Ansible, Bash or Python and Terraform/OpenTofu.
• Experience with observability tools (Prometheus, Grafana) and on‑call incident management.

Required skills

• Linux (Debian/Ubuntu)
• MAAS
• Kubernetes
• Ansible
• Bash
• Python
• Terraform / OpenTofu
• Git
• Prometheus
• Grafana
• Alertmanager
• VictoriaMetrics / VictoriaLogs
• IPMI / Redfish
• BMCs
• RAID
• Proxmox
• KVM / libvirt
• OpenStack
• VMware
• GPU infrastructure
• VLAN, L2/L3 routing, VPN, firewalls, DNS

What we offer

• 100% remote work with flexible hours (EU timezones)
• High‑impact role with technical ownership and autonomy
• Opportunity to shape architecture of a growing cloud platform
• International, engineering‑driven team focused on automation and reliability