Senior Site Reliability Engineer / Kubernetes (Remote)

Estonia, Remote. Posted 2 months ago

The role

The Senior Site Reliability Engineer will operate and maintain Linux-based infrastructure and manage Kubernetes clusters. The role involves designing network architecture, implementing automation, and overseeing the full cluster lifecycle.

What you will do

Operate and maintain Linux-based infrastructure (Debian/Ubuntu).
Deploy, manage, and scale Kubernetes clusters across bare-metal, virtualized, and on-prem environments.
Oversee full cluster lifecycle: upgrades, node pools, networking, storage, and security hardening.
Implement automation for provisioning and operations using Ansible, Bash/Python, and GitOps workflows.
Design and maintain networking architecture including VLANs, L2/L3 routing, VPNs, and multi-site connectivity.
Build automated deployment workflows (PXE boot, Preseed, cloud-init).
Deploy and maintain observability stacks (Prometheus/Grafana, Loki, ELK, Graylog).
Lead incident response and escalation activities across the platform.
Improve system availability and reduce latency at all levels.
Define and implement SLOs/SLIs at multiple infrastructure levels.

Required qualifications

Expert-level, hands-on experience operating Kubernetes in production environments.
Strong network engineering skills (VLANs, L2/L3 routing, VPNs, multi-site connectivity).
Strong proficiency with Linux systems administration (Debian/Ubuntu).
Solid understanding of networking fundamentals and ability to design complex network architectures.
Experience building and maintaining automation workflows (Ansible, Bash/Python, Git-based).
Experience with observability stacks such as Prometheus, Grafana, ELK, Loki, or Graylog.
Background with virtualization technologies (OpenStack, Proxmox, VMware).
Experience with bare-metal provisioning and MAAS (Metal as a Service).
Strong understanding of distributed systems and container orchestration.
Process-oriented mindset with ability to develop SOPs and operational procedures from scratch.
Experience with incident response, escalation procedures, and on-call rotations.
Fluent English is mandatory.

Nice to have

Experience with service mesh (Istio, Linkerd) or advanced CNI implementations.
Knowledge of Cloudflare APIs, DNS automation, or tunnel configurations.
Experience with GPU infrastructure, node preparation, or resource scheduling.
Familiarity with security best practices (RBAC, firewalls, network policies).
Exposure to IT asset management or license tracking workflows.
Experience working in multi-timezone environments and coordinating across distributed teams.
Background establishing reliability practices and SRE frameworks in growing organizations.

Benefits

100% remote work with flexible hours
High-impact role with autonomy and ownership
Collaborative and international engineering team
Cutting-edge tech stack with strong focus on reliability and automation

About the company

Pragmatike focuses on developing cutting-edge solutions in Cloud Computing. The company aims to expand its team and drive the growth of its internal projects.