Kubernetes & Cloud Integration Engineer

• 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.

• Bachelor's or Master's in Computer Science, Software Engineering, Telecommunications, or related discipline.
• Certifications such as CKA, CKAD, SUSE Rancher or equivalent (strong plus).

Professional Experience

• 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.

Technical Experience

• Deep expertise with RKE2, Rancher Manager, and the broader Rancher ecosystem.
• Strong understanding of the RKE2 Support Matrix and certified CNI/CSI components.
• 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 such as Golang, Ruby and Bash.
• Experience developing/maintaining Kubernetes controllers and solutions based on Kubernetes Cluster API.
• Ability to debug and optimize complex multi-layer, multi-cluster cloud-edge deployments.

Language Skills

• English fluency at a professional or native-equivalent level, with excellent clarity and expression in both writing and speech.

Soft Skills & Collaboration

• 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.

• Competitive compensation package and flexible remuneration options: Meals, transport, nursery/childcare.
• Customized workstation (macOS, Windows, Linux any distro is welcome) and private health insurance.
• 6-hour workday on Fridays and everyday during August.
• PTO: holidays, personal time, sick time, parental leave.
• Fully remote company with main HQ in Madrid and offices in Boston and Brno.
• Strong work-life balance with digital disconnecting time and encouragement for harmony between personal and professional life.
• Flexible hiring options: full-time, part-time, employee or contractor roles.
• Engineering-first culture where openness, collaboration, risk-taking, and continuous growth are valued.
• Exposure to a broad technology ecosystem and encouragement for learning and researching new technologies.