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# Kubernetes Platform Engineer

- **Company:** OpenNebula Systems
- **Location:** Pozuelo de Alarcón, Spain
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Artificial Intelligence, Cloud Computing, Linux, Distributed Systems, Kernel-Based Virtual Machine, Open Source Technology, Quick EMUlator (QEMU), Ansible, Prometheus, Ruby, Software Engineering, Virtualization Technology, Datadog, Console System Interface, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Terraform, Software Version Control, Api Management
- **Published:** October 9, 2026
- **Apply:** https://www.adzuna.es/details/5919831992

## About the Role

We are looking for an engineer with hands-on Kubernetes experience who is comfortable both operating complex clusters and developing software around the Kubernetes ecosystem. You will contribute to OneKS, CAPONE, and CSI, develop Kubernetes controllers and integrations, evaluate new solutions, and work across Linux, containers, virtualization, networking, storage, and infrastructure automation. Strong Go development skills are essential, while experience with Cluster API, RKE2, and AI workloads on Kubernetes will be highly valuable. As we are an international team, please submit your CV in English., * Bachelor's or Master's degree in Computer Science, Information Technology, or Engineering.

Professional Experience

 * Hands-on professional experience administering and troubleshooting Kubernetes clusters in production or similarly complex environments.
 * Professional experience developing software in Go.
 * Experience working with Kubernetes cluster lifecycle management, ideally including Cluster API and RKE2.
 * Experience collaborating on software projects using modern development workflows, version control, testing, and technical documentation.

Technical Experience

 * Strong hands-on Kubernetes experience, including troubleshooting, networking, and storage.
 * Strong Go development skills; experience developing Kubernetes controllers or operators is highly valuable.
 * Strong Linux and container knowledge, with confidence troubleshooting distributed infrastructure.
 * Experience with Helm and Cluster API; familiarity with virtualization technologies such as KVM/QEMU.
 * Familiarity with Terraform, Ansible, observability tooling such as Prometheus, CSI, and Kubernetes cloud-provider integrations.
 * Experience with RKE2, Ruby, AI workloads on Kubernetes, or the NVIDIA Kubernetes ecosystem is a strong plus.

Language Skills

 * Intermediate to Advanced English level (B2 or higher) is required.

Soft Skills & Collaboration

 * Platform engineering mindset, with the flexibility to work across software development, Kubernetes operations, automation, and cloud infrastructure.
 * Strong self-management and accountability, with the ability to take ownership of tasks and deliver work independently.
 * Clear communication skills and the ability to explain technical decisions, troubleshooting findings, and implementation choices to others.

 * Collaborative and pragmatic approach, with a willingness to work closely with teammates and contribute to shared technical decisions.
 * Engineering mindset focused on reliable, maintainable, production-ready solutions rather than one-off implementations.
 * Curiosity and adaptability to work across Kubernetes, virtualization, networking, storage, observability, and other parts of the OpenNebula stack.

## Description

The OpenNebula Systems team is looking for a Kubernetes Platform Engineer to join the team. You will work on the development, lifecycle management, and troubleshooting of Kubernetes-based components and integrations across our open-source cloud management platform, with a strong focus on production-grade clusters, automation, and cloud infrastructure., * Develop and maintain features across OneKS, CAPONE, and the OpenNebula CSI integration.

 * Troubleshoot Kubernetes and RKE2 clusters, including networking, storage, upgrades, and multi-layer infrastructure issues.
 * Develop and maintain Kubernetes controllers, operators, and Cluster API integrations using Go.
 * Evaluate and integrate new solutions running on Kubernetes, including AI-related platforms and workloads.
 * Contribute to improvements and issues in adjacent components such as the Terraform Provider and OpenNebula appliances.
 * Automate and improve cluster lifecycle and platform integrations using tools such as Helm, Cluster API, Terraform, and Ansible.
 * Write maintainable code, tests, and technical documentation, and collaborate closely with engineers across the OpenNebula stack.