Cloud Networking & Virtualization Engineer

📋 Job Overview

For over a decade now, OpenNebula Systems has been leading the development of the European open source technology that helps organizations around the world to manage their corporate data centers and build their Enterprise Clouds. If you want to join an established leader in the cloud infrastructure industry and the global open source community, keep reading, because you can now join a team of exceptionally passionate and talented colleagues whose mission is to help the world's leading enterprises to implement their next-generation edge and cloud strategies. We are hiring!

🏢 About OpenNebula Systems

Since 2019, and thanks to the support from the European Commission, OpenNebula Systems has been leading the edge computing innovation in Europe, investing heavily in research and open source development, and playing a key role in strategic EU initiatives such as the IPCEI-CIS and the “European Alliance for Industrial Data, Edge and Cloud”.

🎯 The Role

We are currently looking for a Cloud Networking & Virtualization Engineer (OVS/DPDK) to join our Engineering team in Europe and strengthen the networking and virtualization behind our cloud and telco deployments.

✅ Key Responsibilities

• Integrating, deploying and maintaining Open vSwitch with DPDK and KVM-based virtual networking in Red Hat environments
• Configuring and validating performance features such as SR-IOV, hugepages and NUMA pinning to support demanding network and virtualization workloads
• Maintaining and extending one-deploy and its Ansible automation for repeatable infrastructure deployment and configuration
• Testing OVS/DPDK configurations, investigating networking and virtualization performance, and documenting results and improvements
• Troubleshooting incidents across Linux, virtual networking and KVM, identifying root causes and implementing preventive measures
• Supporting Red Hat infrastructure configuration and lifecycle management, including work with Red Hat Satellite
• Working with customers and project teams on deployment, integration and support of cloud and telco environments, with occasional travel to project meetings and events
• Collaborating with development and support teams to resolve integration issues and improve the reliability and maintainability of the infrastructure stack
• Writing and maintaining technical documentation, deployment procedures, troubleshooting runbooks and project reports

📌 Required Qualifications

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
• Demonstrated professional experience deploying, testing, troubleshooting or supporting virtual networking and Linux-based virtualization environments, with responsibility for resolving complex infrastructure issues.
• Experience delivering cloud or virtualization integration projects and working independently with engineering and customer teams. Experience in telecom, NFV/NFVI or large private-cloud environments is an advantage
• Required hands-on professional experience with Open vSwitch (OVS) using DPDK, including practical configuration, testing or troubleshooting of virtual networking and its performance.
• Required hands-on experience with Ansible, including writing or maintaining playbooks and roles for infrastructure deployment, configuration and ongoing maintenance.
• Required hands-on experience deploying, operating or troubleshooting KVM virtualization on Red Hat systems, with an understanding of how virtual machines interact with host networking and resources.
• Experience with enhanced platform awareness and performance features such as SR-IOV, hugepages and NUMA pinning is valuable. Familiarity with Red Hat Satellite, OpenNebula or one-deploy is an advantage; these tools can be learned after joining.

🎁 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)
• We are building an awesome, Engineering First Culture and your opinion matters: Thrive in the high-energy environment of a young company where openness, collaboration, risk-taking, and continuous growth are valued
• Be exposed to a broad technology ecosystem. We encourage learning and researching new technologies and methods as part of your everyday duties