Sarah Fujimori
Compilers Research at Stanford University
Palo Alto, California, United States
Summary
🤩
Rockstar🎓
Top SchoolSarah Fujimori is a compiler and formal methods researcher and engineer with eight years of experience blending pure mathematics and systems engineering from Stanford. Currently in Prof. Fredrik Kjolstad’s group, she focuses on verification and analysis of hardware designs for sparse matrix computation while also pursuing a CS master's, bringing rigorous math-driven approaches to practical compiler and hardware problems. Her practical systems background includes eBPF security and observability work on the high-profile Cilium/Tetragon project and multiple internships at Isovalent, where she implemented optimizations and improved runtime protections for cloud-native environments. She’s contributed to fast distributed SQL tooling (Polars, DuckDB) and performance benchmarking, and has a track record of shipping testable, refactored code with improved observability and pretty-printing for complex event traces. Colleagues describe her as someone who bridges deep theoretical intuition with hands-on engineering—able to prove properties on paper and then instrument production systems to make them safer.
8 years of coding experience
2 years of employment as a software developer
Mathematics, Mathematics at Euler CircleHigh School Diploma, High School Diploma at Menlo SchoolMaster's degree Computer Science, Master's degree Computer Science at Stanford University
English
Github Skills (10)
kernel10
go10
bpf10
ebpf10
security10
testing9
kubernetes8
kubernetes-pods8
protobuf8
protobuffer8
Programming languages (2)
Github contributions (5)
cilium/tetragon
Jul 2022 - Sep 2022
eBPF-based Security Observability and Runtime Enforcement
Role in this project:
Back-end & Security Engineer
Back-end & Security EngineerContributions:3 reviews, 11 commits, 7 PRs in 2 months
Contributions summary:Sarah primarily contributed to the Tetragon project by implementing and enhancing the security and observability features related to eBPF. Their work included adding support for new eBPF attributes, tracing and analyzing events from functions like `bpf_check`, `security_perf_event_alloc`, and `security_bpf_map_alloc`. They also refactored the code, replacing `context.TODO()` calls, and added unit tests to improve code quality and testability. Furthermore, they introduced pretty printers for easier readability of the new events.
bpfkernelenforcementsecurityruntime
sarahfujimori/tetragon
Jul 2022 - Aug 2023
eBPF-based Security Observability and Runtime Enforcement
Contributions:41 pushes, 7 branches in 1 year
enforcementsecurityruntimeebpfobservability
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