Full time (permanent contract)

Full remote, hybrid or on site (Grenoble, France)

The XCP-ng team develops and maintains multiple storage stacks inside the platform. This stack is responsible for any block read or written from a guest, down to the physical storage. Our main focus is to add more flexibility and performance to this stack, while being extra careful on the reliability. We are doing research and development in numerous areas, like data path optimization, flexibility to connect to multiple storage types, offering shared thin provisioning, working on DPUs and everything needed on a modern virtualization platform. Vates is looking for an experienced low-level developer with Linux Kernel or storage/data path experience. As part of the team, you'll have the chance to generate a significant impact on our systems running on thousands of machines all around the world. If you are passionate about storage with a deep technical knowledge, you'll be at the right place:

• You'll work directly with experienced Xen and Linux kernel developers at Vates (including a PhD) but also with the very skilled Xen community to upstream your work and/or review upstream contributions related to storage (like PV drivers for example)
• You'll improve the storage stack and all the tooling around it, from the Dom0 to the guest. Running benchmarks to compare various situations
• Your work will focus on new features, performance and reliability improvements for server workloads. You'll be working on key areas of the storage stack, and inside Xen and Linux.

• BS in Computer Science or related discipline, or equivalent work experience
• Several years of experience working on the Linux Kernel
• Strong skills in C and Python programming
• Direct experience with Linux kernel or storage driver development

Vates is a French software company specializing in Open Source and virtualization with a deep commitment to open, collaborative development. Our main projects, Xen Orchestra and XCP-ng, span the full virtualization stack—from the hypervisor (Xen) and virtualization platform (XCP-ng) to management and VM backups (Xen Orchestra). Our team works across multiple countries, fully embracing remote work with transparent workflows and accessible communication channels. At Vates, we are driven by a strong, people-first culture that values benevolence, inclusivity, and a horizontal structure. Every member is empowered to contribute ideas, make decisions, and grow with the company. Our open-source model is core to everything we do, not just in our code, which is available on GitHub and GitLab, but in our collaborative approach with the community. We believe in "upstream first," dedicating our expertise and resources to support and advance foundational projects like Xen, and helping contributors of all levels join us on this journey.