Senior Site Reliability Engineer; MAAS

Location:

Fully remote, EU timezone (CET ±2h)

Start date:

ASAP

Languages:

Fluent English required
Industry: Cloud Computing / GPU Infrastructure

Pragmatike is hiring a Senior SRE / Infrastructure Engineer to help operate and scale a distributed infrastructure platform spanning bare-metal GPU nodes, Kubernetes, virtualization, networking, and multi-site environments.

You’ll work close to the infrastructure itself, from BMCs, hardware and MAAS provisioning through Kubernetes, networking, observability, automation, and site operations.

This is a hands-on role for someone who enjoys owning infrastructure end-to-end, building reliable systems, and automating everything that can be automated. Startup or hyper-growth experience is a strong plus: autonomy, ownership, and speed matter here.

• Operate and maintain large-scale Linux infrastructure across Debian/Ubuntu-based bare-metal and virtualized environments.
• Own MAAS-based bare-metal provisioning, including region/rack controllers, PXE, commissioning, cloud-init, node lifecycle, and API/CLI automation.
• Operate and maintain production Kubernetes clusters, including upgrades, node pools, networking, storage, security hardening, and troubleshooting.
• Design and maintain multi-site networking across VLANs, L2/L3 routing, bonded interfaces, VPNs, firewalls, and DNS.
• Automate infrastructure provisioning and operations using Ansible, Bash/Python, Open Tofu/Terraform, and Git-based workflows.
• Build and maintain automated deployment workflows including PXE, Preseed, and cloud-init.
• Operate observability platforms using Prometheus, Grafana, Alert manager, Victoria Metrics/Victoria Logs, or comparable tooling.
• Define and improve SLIs, SLOs, alerting, and reliability practices across infrastructure and platform services.
• Lead infrastructure incident response, troubleshooting, escalation, and post-incident improvements.
• Maintain on-call processes and operational coverage across distributed environments.
• Work close to the hardware layer, including IPMI/Redfish, BMCs, RAID, storage, hardware diagnostics, and GPU infrastructure.
• Manage virtualization platforms including Proxmox, KVM/libvirt, Open Stack, or VMware, including GPU passthrough where required.
• Build and maintain internal infrastructure tooling for host discovery, configuration, IPAM, hardware health, and operational automation.
• Own infrastructure lifecycle activities including site onboarding, maintenance, decommissioning, drift detection, and operational runbooks.
• Work closely with engineering and cross-functional teams to improve reliability, resource utilization, and operational efficiency.

• 5+ years of hands-on SRE, Infrastructure, Systems, or Platform Engineering experience.
• Expert-level Linux administration, particularly Debian/Ubuntu.
• Strong production experience with MAAS and bare-metal provisioning.
• Expert-level, hands‑on experience operating Kubernetes in production, including cluster lifecycle, networking, storage, upgrades, and troubleshooting.
• Strong network engineering skills across VLANs, L2/L3 routing, bonding, VPNs, firewalls, and DNS.
• Strong automation skills with Ansible, Bash and/or Python.
• Experience with Terraform/Open Tofu and Git-based infrastructure workflows.
• Production experience with Prometheus/Grafana or comparable observability platforms.
• Experience with incident response, on-call operations, monitoring, alerting, and reliability practices.
• Experience with Proxmox, KVM/libvirt, Open Stack, VMware, or comparable virtualization technologies.
• Experience with bare-metal hardware, BMCs, IPMI/Redfish, storage, and hardware troubleshooting.
• Strong understanding of distributed systems, container orchestration, and infrastructure reliability.
• Experience…