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Senior Site Reliability Engineer / Kubernetes (Remote)

pragmatike

Estonia Remote Full-time Posted 3w ago
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Job Description Location: Fully remote EU timezone (CET ±2h) Start date: ASAP Languages: Fluent English is mandatory Industry: Cloud Computing We are hiring at Pragmatike to expand our team and drive the growth of our internal projects. Our focus is on developing cutting-edge solutions in Cloud Computing, while fostering a culture of collaboration and innovation. Joining us means being part of a passionate team where your ideas and skills directly contribute to shaping tomorrows technologies. If you're excited about working on ambitious projects in a dynamic and flexible environment, we'd love to hear from you!   RESPONSIBILITIES * 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 (physical network/hardware, platform virtualization, software services). * Optimize alerting and monitoring pipelines to provide actionable insights. * Establish and maintain on-call schedules to ensure coverage across timezones. * Develop Standard Operating Procedures (SOPs) for repeatable operations and maintenance tasks. * Coordinate physical maintenance for Policlouds (periodic maintenance, hardware issues, DC-Ops). * Manage virtualization and orchestration layers (OpenStack, Proxmox, VMware). * Help develop and maintain overall architecture across all products. * Plan resources for future initiatives, accounting for demand and growth projections. * Work with development teams to improve overall quality and optimize resource utilization. * Collaborate with cross-functional stakeholders (Hivenet, Policloud, Customer Success teams). REQUIREMENTS * Expert-level, hands-on experience operating Kubernetes in production environments. * Strong network engineering skills (VLANs, L2/L3 routing, VPNs, multi-site connectivity) - this is essential for the role. * 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. * Ability to work autonomously in a fast-paced, engineering-driven environment. * Strong technical skills combined with alignment to team values. 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. Why Join Us: * 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.
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