Brian Caswell
Summary
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RockstarBrian Caswell is a Principal engineer at Microsoft Research with over 7 years of experience building cloud-scale security and forensics platforms, including architecting Project Freta and leading Project OneFuzz into Azure production. He combines deep offensive security roots—from DARPA cyber programs and Sourcefire intrusion detection—to pragmatic back-end and DevOps engineering, contributing to high-impact open source projects like Microsoft’s AVML and OneFuzz and the Azure SDK for Rust. Known for performance-minded systems work (e.g., null-block skipping and automated CI/CD for memory acquisition tooling), he blends low-level forensic insight with large-scale cloud automation. Brian’s background spans founding a security startup, DARPA program leadership, and hands-on vulnerable-service development, giving him an uncommon mix of adversarial thinking and production-grade software delivery.
8 years of coding experience
Github Skills (27)
develop10
back-end-development10
python10
azure-sdk10
testing10
command-line-interface10
cicd10
azure-blob-storage10
reqwest10
command-line10
rust10
devops10
cli10
apidoc9
file-conversion9
Programming languages (8)
Github contributions (5)
microsoft/onefuzz
Sep 2020 - Sep 2021
A self-hosted Fuzzing-As-A-Service platform
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:59 releases, 931 reviews, 651 commits in 1 year
Contributions summary:Brian primarily contributed to the back-end development aspects of the `microsoft/onefuzz` project. Their work involved enabling and documenting command-line interface (CLI) sub-command arguments, enhancing the functionality of the AFL (American Fuzzy Lop) job template, and refactoring scaleset state management. Furthermore, the user also contributed to DevOps by setting up path environment variables for task setup and improving the utilization of sccache for faster builds.
fuzzing
microsoft/avml
Jun 2019 - Dec 2022
AVML - Acquire Volatile Memory for Linux
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:15 releases, 6 reviews, 80 commits in 3 years 6 months
Contributions summary:Brian primarily contributed to the `microsoft/avml` repository by implementing core functionality for converting memory dumps and integrating features such as compression and Azure blob storage upload. They refactored code related to block copying and introduced a system for skipping null blocks, which suggests a focus on performance optimization. Additionally, the user updated dependencies and refactored the build and deployment scripts for automated builds, testing, and deployments using GitHub Actions.
linuxrustmemory-forensicslinux-security
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