Sebastian Wicki
Software Engineering Technical Leader, Isovalent At Cisco
Zurich, Zurich, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolSebastian Wicki is a Zurich-based software engineering technical leader with 17 years of experience building and operating cloud-native networking and observability systems. At Isovalent (now part of Cisco) he progressed from engineer to technical lead, focusing on eBPF-driven networking, security, and metrics integrations for Kubernetes. He combines low-level systems expertise—demonstrated by contributions to rust-lang/libc and rump-kernel ports—with production engineering skills in distributed systems, CI/CD, and cluster observability. His background spans research-grade stream processing at ETH Zurich to hands-on deployment and debugging of networking daemons, giving him a rare blend of research rigor and operational craft. Notably, he’s fixed platform-specific Rust/C toolchain issues and implemented nuanced network policy and flow-parsing features used by widely adopted open-source projects like Cilium and Hubble.
17 years of coding experience
2 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at ETH ZurichMatura, Matura at Kantonsschule Schüpfheim
Github Skills (28)
kubernetes10
system-programming10
multiplatform10
ebpf10
ip10
linux10
cross-platform10
networking10
cicd10
go10
tcp10
kubernetes-pods10
rust10
netbsd10
protobuffer10
Programming languages (16)
Github contributions (5)
cilium/hubble
Nov 2019 - Jan 2023
Hubble - Network, Service & Security Observability for Kubernetes using eBPF
Role in this project:
Back-end Developer
Back-end DeveloperContributions:185 reviews, 133 commits, 237 PRs in 3 years 2 months
Contributions summary:Sebastian primarily contributed to the back-end functionality of the Hubble project, focusing on parsing network flow data. They extended the IPCache interface and implemented code to obtain and use numeric security identities for endpoint labeling. The user updated and refactored existing parser code, specifically in the threefour and seven parsers to utilize protobuf definitions from the flow package. Further, they added support for policy verdict events.
securitytracingebpfnetworkingobservability
cilium/cilium
Aug 2022 - Jan 2023
eBPF-based Networking, Security, and Observability
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:2673 reviews, 15 commits, 903 PRs in 4 months
Contributions summary:Sebastian contributed to the development and maintenance of the Cilium project, focusing on network, security, and observability features based on eBPF. The contributions primarily involved implementing and enhancing network policies, including adding support for DNS and hostport traffic. The work also extended to the infrastructure side, as seen in the deployment, setting up and improvements to the metrics, debugging and testing infrastructure of the cluster. The commits demonstrate expertise in building and running networking daemons, integrating them with distributed system environments like Kubernetes.
bpfcontainerskerneltroubleshootingkubernetes-networking
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