Demi Obenour
Software Developer at Invisible Things Lab
Farragut, Tennessee, United States
Summary
🤩
Rockstar🎓
Top SchoolDemi Obenour is a versatile software developer with 12 years of experience building systems-level, security-focused, and compiler tooling across languages from Rust and C/C++ to Haskell and OCaml. Currently at Invisible Things Lab, Demi has a track record of hardening critical low-level projects—contributions include fixes to GHC, Xen hypervisor memory handling, RPM security hardening, and ASN.1/X.509 fixes in trusted firmware. Comfortable across build systems and automation, they've improved Ninja and MSBuild tooling and streamlined fwupd and ReScript build and integration flows. Demi combines strong mathematical skills and Unix systems programming experience with interest and hands-on work in functional programming and Web development. Notably, they implemented verifiable delay functions in Rust at POA Network and have repeatedly fixed subtle compiler and linker issues that improve portability on platforms like Darwin and iOS. Based in Farragut, TN, Demi is seeking a full-time role where low-level correctness, security, and elegant language design intersect.
12 years of coding experience
7 years of employment as a software developer
Humanities distribution requirements, Humanities distribution requirements at Pellissippi State Community CollegeBiomedical Engineering and Electrical Engineering, Biomedical Engineering and Electrical Engineering at Worcester Polytechnic InstituteComputer Science, Computer Science at University of Tennessee, Knoxville
Stackoverflow
3,595reputation
1.2mreached
65answers
90questions
optimization
top-5%
compiler-construction
top-5%
Github Skills (89)
security-hardening10
lexer10
package-management10
hyper-v10
compiler-development10
testing10
firmware10
c1110
perl10
security10
c1710
hyper10
automation10
build-automation10
rescript10
Programming languages (57)
Github contributions (5)
google/sandboxed-api
Jan 2022 - Mar 2022
Generate sandboxes for C/C++ libraries automatically
Role in this project:
Security Engineer
Security EngineerContributions:21 reviews, 9 commits, 15 PRs in 1 month
Contributions summary:Demi contributed to the project by integrating and testing sandboxing features for various C/C++ libraries, particularly libidn2 and TurboJPEG. Their work involved creating SAPI (Sandboxed API) wrappers and tests, demonstrating an understanding of security hardening and the sandboxing techniques used within the repository. The user also addressed build issues and syntax errors, improving the overall build process and project maintainability. These modifications indicate a focus on ensuring the secure operation and integration of external libraries within the sandboxed environment.
sandboxingsapicppcplusplus-17apache-license-2
fwupd/fwupd
Oct 2022 - Nov 2022
A system daemon to allow session software to update firmware
Role in this project:DevOps Engineer & System Architect
DevOps Engineer & System ArchitectContributions:3 reviews, 8 commits, 1 PR in 27 days
Contributions summary:Demi's contributions primarily focused on refactoring and streamlining the Qubes OS integration code within the fwupd project. They modified the build process, reduced code duplication by refactoring shared functions, and removed deprecated features. The user also made significant changes to file paths and dependencies, improving the overall maintainability and reliability of the system. They appear to be responsible for core system administration and integration components.
firmware-updatefirmwaredaemonlinuxupdate
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