Isovalent, now part of Cisco, is the company founded by the creators of Cilium and eBPF. Cisco Isovalent builds open-source software and enterprise solutions solving networking, security, and observability needs for modern cloud native infrastructure. The flagship technology, Cilium, is the choice of numerous, industry-leading, integral organizations.

We believe in fostering an inclusive and diverse workplace where every team member feels valued, respected, and empowered. We believe that every employee contributes to our success, and we are committed to fostering an environment where everyone can thrive. We encourage candidates from all backgrounds to apply and join us in our mission to deliver exceptional products and services.

About This Role

Cisco Isovalent is seeking a skilled and experienced Software Engineer with long-term experience and upstream reputation in the Linux kernel community to develop forward looking features and functionality related to BPF, networking and/or security in the Linux kernel as well as bringing the latter into Cilium and/or Tetragon.



You will work with a highly collaborative and skilled team to build solutions that advance the next generation of networking and security in Kubernetes and cloud native environments.

What You’ll Do

Lead design and development of new Linux kernel functionality in the areas of BPF, the networking stack and/or the security subsystem and bring the new functionality into Cilium/Tetragon.
Collaborate in a small technical team working on forward-looking features, but also actively collaborate in the upstream Linux kernel community.
Engage with the team across engineering, product, and customers to align on future technical direction with business needs.
Possibility to speak at technical conferences to present and discuss your work (e.g., KubeCon, Linux Plumbers, LSF/MM/BPF).
Contribute to and uphold engineering best practices, code quality, and operational excellence.

Minimum Qualifications

Bachelors Compu

📌 Principal Software Engineer, Linux Kernel (Barcelona)
🏢 Cisco
📍 Barcelona