Senior Site Reliability Engineer / Kubernetes (Remote)

Company: Pragmatike

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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