Fabian Fischer
Software Engineer at Isovalent
Zurich, Zurich, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolFabian Fischer is a software engineer with 11 years' experience building cloud-native, production-grade systems from Zurich, currently contributing at Isovalent. He blends backend engineering, DevOps and SRE practices—having improved observability and resilience in the high-profile eBPF project Cilium (notably Hubble enhancements, data-race fixes and graceful relay refactors). Previously he designed Kubernetes operators and self-service platforms at VSETH and drove cluster automation, developer tooling and SLO-backed operations at VSHN. Fabian pairs an ETH Zurich computer science background with hands-on experience in deployment, certificates, readiness/liveness plumbing and on-call reliability, making him comfortable across the full lifecycle from code to runbook. A practical problem-solver, he often focuses on subtle production issues (offline node handling, graceful shutdowns and race conditions) that disproportionately improve system robustness.
11 years of coding experience
3 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at ETH ZürichMaster of Science - MS, Computer Science, Master of Science - MS, Computer Science at ETH Zurich
Github Skills (17)
kubernetes10
observability10
ebpf10
networking10
go10
kubernetes-pods10
grpc10
container9
debugging9
bpf9
dockers9
cicd9
security9
docker9
relayer9
Programming languages (14)
Github contributions (5)
cilium/cilium
Sep 2023 - Apr 2025
eBPF-based Networking, Security, and Observability
Role in this project:
Back-end Developer, DevOps Engineer, and SRE
Back-end Developer, DevOps Engineer, and SREContributions:48 reviews, 13 PRs, 58 comments in 1 year 6 months
Contributions summary:Fabian primarily contributed to the hubble and cilium project. They enhanced Hubble's functionality by implementing features like filtering on HTTP URLs and adding a flows rate field to the status. They also fixed data races, improved handling of offline nodes, and refactored the relay for better connection management and graceful shutdowns. Furthermore, they worked on improving the project's build and deployment processes, including the addition of readiness and liveness probes and certificate reloading improvements.
bpfcontainerskerneltroubleshootingkubernetes-networking
Glorfischi/KnowYourMemory
Jul 2020 - Feb 2021
A collection of benchmarks to understand RDMA connection design, as part of a master thesis.
Contributions:6 PRs, 208 pushes, 43 branches in 6 months
data-managementbenchmarkingmasterbenchmarkbenchmarks
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