Joshua Deffibaugh
Senior Software Engineer at CoreWeave
San Diego, California, United States
Summary
👤
Senior🎓
Top SchoolJoshua Deffibaugh is a senior software engineer with 11 years of experience building high-performance backend and distributed systems for cloud, storage, and real-time data platforms. He has driven low-latency, large-scale solutions at AWS and CrowdStrike—designing custom protocols, eBPF-based observability, and ETL pipelines that materially improved latency, capacity forecasting, and incident response. Joshua moves fluidly between infrastructure as code, kernel-level instrumentation, and data engineering, with a track record of shaving seconds (and tail latency) off critical services and migrating large analytics workloads to BigQuery. He founded a startup acquired after TechStars, showing both product instincts and the ability to operationalize global delivery systems. Based in San Diego, he now focuses on AI storage at CoreWeave, combining systems-level rigor with a knack for pragmatic automation and mentorship.
11 years of coding experience
14 years of employment as a software developer
Bachelor of Science (B.S.) Computer and Information Sciences General, Bachelor of Science (B.S.) Computer and Information Sciences General at Penn State UniversityMasters Computer Science, Masters Computer Science at Georgia Institute of TechnologyMasters Computer Science, Masters Computer Science at University of San Francisco
German, Spanish
Github Skills (106)
lisp-interpreter10
raspberry-pi-camera10
sdk10
android-sdk10
makefile10
java10
square10
kotlin10
raspberry-pi-pico10
asciidoc10
raspberry10
optimizely10
lisp10
r9
javascript9
Programming languages (10)
Github contributions (5)
optimizely/android-app
Dec 2015 - May 2016
Contributions:25 pushes in 5 months
dagger-2daggerandroidkotlinkotlin-android
colatris/android-storage
Jan 2015 - Mar 2015
Contributions:16 pushes, 9 branches, 7 tags in 1 month
androidkotlindatabasekey-valuekey-value-database
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