Senior Site Reliability Engineer – MAAS

Pragmatike

. Operate and maintain large-scale Linux infrastructure across Debian/Ubuntu-based bare-metal and virtualized environments .

Posted 9/29/2026full-timeRemote • ArmeniaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expert-level Linux administration, particularly in Debian/Ubuntu, and strong production experience with Kubernetes and MAAS for bare-metal provisioning. Proficient in automation using Ansible, Bash, and Terraform, with a solid understanding of network engineering and infrastructure security practices.

Highest-signal resume keywords

Linux AdministrationKubernetes OperationsMAAS ProvisioningAnsible AutomationNetwork Engineering

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Hard Skills

Linux AdministrationKubernetesMAASAnsibleBashPythonTerraformPrometheusGrafanaNetwork Engineering

Soft Skills

Autonomous WorkProblem-SolvingCollaboration

Tools & Technologies

ProxmoxKVM/libvirtOpenStackVMwareIPMI/RedfishBMCs

Industry Keywords

Infrastructure EngineeringSite Reliability EngineeringDistributed SystemsInfrastructure SecurityOperational Efficiency

Tech Stack

Tools & technologies

AnsibleCloudDistributed SystemsDNSFirewallsGrafanaKubernetesLinuxNode.jsOpenStackPrometheusPythonTerraformVMware

About the role

Key responsibilities & impact

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, OpenTofu/Terraform, and Git-based workflows
Build and maintain automated deployment workflows including PXE, Preseed, and cloud-init
Operate observability platforms using Prometheus, Grafana, Alertmanager, VictoriaMetrics/VictoriaLogs, 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, OpenStack, 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

Requirements

What you’ll need

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/OpenTofu 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, OpenStack, 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 with infrastructure security including RBAC, firewalls, network policies, secrets management, and security hardening
Ability to create SOPs, runbooks, and operational processes from scratch
Comfortable working autonomously in a fast-paced, engineering-driven environment
Fluent English required

Benefits

Comp & perks

100% remote with flexible working hours
High-impact role with significant technical ownership and autonomy
Work directly with bare-metal, Kubernetes, networking, and GPU infrastructure
International, engineering-driven team
Strong focus on automation, reliability, and infrastructure at scale
Opportunity to shape the architecture and operational foundations of a growing cloud platform