Senior Site Reliability Engineer – Kubernetes

This is a fully remote position, open to applicants in Estonia.

📋 Description

• Manage and operate Linux-based systems (Debian/Ubuntu).

• Deploy, oversee, and scale Kubernetes clusters across bare-metal, virtualized, and on-premises environments.

• Supervise the complete lifecycle of clusters: upgrades, node pools, networking, storage, and security enhancements.

• Implement automation for provisioning and operations utilizing Ansible, Bash/Python, and GitOps methodologies.

• Design and uphold networking infrastructure, including VLANs, L2/L3 routing, VPNs, and multi-site connectivity.

• Create automated deployment workflows (PXE boot, Preseed, cloud-init).

• Deploy and maintain observability frameworks (Prometheus/Grafana, Loki, ELK, Graylog).

• Lead incident response and escalation processes across the platform.

• Enhance system availability and minimize latency across all levels.

• Define and implement SLOs/SLIs at various infrastructure layers (physical network/hardware, platform virtualization, software services).

• Optimize alerting and monitoring systems to deliver actionable insights.

• Establish and uphold on-call schedules to ensure coverage across multiple time zones.

• Develop Standard Operating Procedures (SOPs) for consistent operations and maintenance tasks.

• Coordinate physical maintenance for Policlouds (including periodic maintenance, hardware issues, and DC-Ops).

• Manage virtualization and orchestration layers (OpenStack, Proxmox, VMware).

• Assist in developing and maintaining the overall architecture across all products.

• Plan resources for future initiatives, considering demand and growth forecasts.

• Collaborate with development teams to enhance overall quality and optimize resource utilization.

• Work alongside cross-functional stakeholders (Hivenet, Policloud, Customer Success teams).

⛳️ Requirements

• Expert-level, hands-on experience in operating Kubernetes within production environments.

• Strong skills in network engineering (VLANs, L2/L3 routing, VPNs, multi-site connectivity) - essential for this role.

• Proficient in Linux systems administration (Debian/Ubuntu).

• Solid comprehension of networking principles and the capability to design intricate network architectures.

• Experience in building and maintaining automation workflows (Ansible, Bash/Python, Git-based).

• Familiarity with observability tools such as Prometheus, Grafana, ELK, Loki, or Graylog.

• Background in 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 the ability to develop SOPs and operational procedures from the ground up.

• Experience in incident response, escalation protocols, and on-call rotations.

• Ability to work independently in a fast-paced, engineering-focused environment.

• Strong technical capabilities aligned with team values.

🏝️ Benefits

• 100% remote work with flexible hours.

• High-impact role with autonomy and ownership.

• Collaborative and international engineering team.

• Cutting-edge tech stack with a strong emphasis on reliability and automation.