Kubernetes, Cloud Integration Engineer

Role Overview

• Design, integrate, and deploy Rancher-managed RKE2 clusters across cloud, on-premises, and edge environments.
• Integrate and operate certified CNIs/CSIs for RKE2 such as Calico, Cilium, Canal, Multus, and Longhorn.
• Develop and maintain automation for cluster lifecycle using Terraform, Ansible, Helm, and GitOps.
• Implement and manage networking, storage, upgrades, security hardening, and HA configurations for large-scale RKE2 environments.
• Troubleshoot advanced issues across Kubernetes, Rancher Manager, RKE2, Linux, and cloud infrastructure layers.
• Maintain and troubleshoot the OpenNebula Kubernetes Cluster API Provider (CAPONE) and storage provider (OpenNebula CSI driver)
• Monitor and optimize performance, reliability, and scalability of clusters in cloud-edge environments.
• Support engineering teams and customers with solution design, issue escalation, demos, and cloud-edge integration.
• Produce and maintain technical documentation, architecture diagrams, runbooks, and procedural guides.
• Ensure compliance with the RKE2 Support Matrix, certified components, and industry best practices.

Requirements

• Bachelor’s or Master’s in Computer Science, Software Engineering, Telecommunications, or related discipline.
• Certifications such as CKA, CKAD, SUSE Rancher or equivalent are a strong plus.
• 3+ years of hands-on experience running Kubernetes in production environments.
• Experience designing or operating distributed, multi-site, cloud-edge, or telecom-grade architectures.
• Proven track record deploying and managing RKE2 or other hardened Kubernetes distributions.
• Deep expertise with RKE2, Rancher Manager, and the broader Rancher ecosystem.
• Strong understanding of the RKE2 Support Matrix and certified CNI/CSI components (Calico, Cilium, Canal, Multus, Longhorn).
• Strong Linux engineering background (debugging, networking, kernel-level troubleshooting, security hardening).
• Hands-on experience with IaC and automation tools: Terraform, Ansible, Helm, GitOps (Flux/ArgoCD).
• Knowledge of HA patterns, distributed systems, and observability stacks (Prometheus, Grafana, Loki, etc.).
• Experience in languages like Golang, Ruby and bash.
• Experience developing/maintaining Kubernetes controllers and solutions based on Kubernetes Cluster API
• English fluency at a professional or native-equivalent level, with excellent clarity and expression in both writing and speech.
• Strong customer service mindset, with a focus on responsiveness and user satisfaction.
• Clear communication and documentation with strong written and verbal English, async collaboration, and visibility of work.
• Self-management and accountability with ability to work independently, manage time, and take ownership of tasks and deadlines
• Technical autonomy and tool proficiency with confidence in using Git, CI/CD, remote collaboration tools (Slack, Zoom, GitHub, etc.), and solving problems without direct supervision.

Tech Stack

• Ansible
• Cloud
• Distributed Systems
• Flux
• Grafana
• Kubernetes
• Linux
• Prometheus
• Ruby
• Terraform
• Go

Benefits

• Competitive compensation package and Flexible Remuneration Options: Meals, Transport, Nursery/Childcare
• Company-provided workstation
• Private Health Insurance
• 6 hours workday on Fridays and everyday during August
• PTO: Holidays, Personal Time, Sick Time, Parental leave.
• All Remote company with bright HQ centrally located in Madrid, and offices in Boston (USA) and Brno (Czech Republic)
• Healthy Work-Life Balance : We encourage the right for Digital Disconnecting and promote harmony between employees personal and professional lives
• Flexible hiring options: Full Time/Part Time, Employee (Spain/Usa) / Contractor (other locations)