Jonathan Crussell
Distinguished Member Of Technical Staff, Cybersecurity at Sandia National Laboratories
San Francisco Bay Area United States
Summary
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Senior🎓
Top SchoolJonathan Crussell is a Distinguished Member of Technical Staff in cybersecurity with 14 years of experience building detection and analysis systems from a research-rooted perspective. He holds a PhD in Computer Security from UC Davis and blends deep academic rigor with hands-on engineering in intrusion detection, malware analysis, data analysis, Linux, Go, and Python. Based in the San Francisco Bay Area, he has spent his career at Sandia National Laboratories, advancing operationally relevant security research and production tooling. An active open-source contributor, Jonathan made notable performance and cross-platform improvements to the widely used gopacket library, including rewriting pcap internals and adding ICMPv6 functionality. His work reflects a penchant for low-level network plumbing and pragmatic optimizations that improve reliability at scale. Colleagues rely on him for solving subtle protocol and performance problems that bridge research and deployed systems.
14 years of coding experience
4 years of employment as a software developer
Doctor of Philosophy (PhD), Computer Science, Doctor of Philosophy (PhD), Computer Science at University of California, Davis
Github Skills (6)
go10
packet10
networking10
libpcap10
icmpv69
windows9
Programming languages (7)
Github contributions (5)
google/gopacket
Nov 2016 - Mar 2018
Provides packet processing capabilities for Go
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 commits, 4 PRs, 19 comments in 1 year 4 months
Contributions summary:Jonathan primarily contributed to the `gopacket` library, focusing on enhancing its packet processing capabilities. They made significant changes to the `pcap` package, rewriting and optimizing the packet reading loop to improve performance. Furthermore, the user implemented platform-specific functionality, splitting the `pcap` code into windows and non-windows implementations to address platform-specific limitations. They added SerializeTo and other functionalities to the ICMPv6 NDP.
golangwiresharkdpdkpacket-processingpacket
jcrussell/jcrussell.github.io
Aug 2016 - Dec 2020
Contributions:3 pushes, 1 branch in 4 years 4 months
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