Senior Site Reliability Engineer / Kubernetes (Remote)
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).
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.
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.
