Senior Site Reliability Engineer (Remote)

Pragmatike; Madrid; Presencial; EUR 90.000 - 130.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

100% remote

Flexible hours

Autonomy

International team

Automation culture

Descripción de la vacante

Pragmatike is expanding its team to accelerate growth of internal cloud projects. This fully remote role operates in the EU time zones and centers on Linux infrastructure, Kubernetes management, automation, and reliable deployments.

Join a collaborative, engineering-driven environment where you own complex networking, SRE practices, and incident response, working with cross-functional teams across time zones.

Formación

• Expert-level Kubernetes in production
• Strong Linux admin skills (Debian/Ubuntu)
• Solid networking fundamentals and design skills
• Automation with Ansible, Bash or Python and GitOps
• Experience with observability stacks (Prometheus, Grafana, ELK/Loki)
• Background in virtualization (OpenStack, Proxmox, VMware)
• Familiar with bare-metal provisioning (MAAS)
• Ability to develop SOPs and runbooks
• Experience with incident response and on-call rotations
• Ability to work autonomously in a fast-paced environment

Responsabilidades

• Operate and maintain Linux-based infrastructure and Kubernetes clusters across environments
• Oversee full cluster lifecycle: upgrades, node pools, networking, storage and security
• Implement automation for provisioning and operations using GitOps workflows
• Design and maintain networking architecture including VLANs, routing, VPNs and multi-site connectivity
• Build automated deployment workflows (PXE, Preseed, cloud-init)
• Deploy and maintain observability stacks (Prometheus/Grafana, ELK, Loki)
• Lead incident response and escalation across the platform
• Improve system availability and reduce latency across layers
• Define and implement SLOs/SLIs for infra components
• Establish and maintain on-call schedules across time zones
• Develop SOPs for repeatable operations and maintenance tasks
• Coordinate hardware maintenance and virtualization/orchestration layers (OpenStack, Proxmox, VMware)
• Plan resources for future initiatives and collaborate with product teams

Conocimientos

Kubernetes

Linux Admin

Networking

Ansible

GitOps

OpenStack

VMware

Proxmox

MAAS

Prometheus

Grafana

Herramientas

OpenStack

Proxmox

VMware vSphere

MAAS

PXE

Cloud-init

Descripción del empleo

Job Description

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.