Mathias Brossard
Distinguished Engineer at Arm
Austin, Texas, United States
Summary
🤩
Rockstar🎓
Top SchoolMathias Brossard is a Distinguished Engineer based in Austin with 15+ years designing and delivering large-scale security systems, specializing in PKI, smart cards, and cryptographic integration for enterprise and cloud environments. He has led 70+ PKI and card management rollouts across finance, healthcare, energy, retail and public sectors, pairing hands-on C/C++/Java development with architecture and program leadership. At Arm he evolved from Principal Software Research Engineer to Distinguished Engineer, driving security architecture and research for silicon and cloud platforms. An active open-source contributor, he’s enhanced Cloudflare’s CFSSL for PKCS#11 ECDSA support and contributed to widely used projects like DAPLink and OpenSC, showing deep expertise across build systems, PKCS#11 and embedded toolchains. Comfortable in both low-level embedded and high-level cloud contexts, he bridges cryptography, smart-card standards and practical deployment to deliver auditable, production-ready security infrastructure.
15 years of coding experience
25 years of employment as a software developer
Computer Science / Mathematics, Computer Science / Mathematics at Ecole normale supérieurePhysics / Computer Science, Physics / Computer Science at Chalmers University of Technology
English, Swedish, French, Spanish
Stackoverflow
3,746reputation
522kreached
36answers
1question
ssl
top-5%
openssl
top-5%
certificate
top-5%
Github Skills (47)
debugging10
python10
probe10
multithreading10
risc-v10
thread-pool10
rs10
c1110
networking10
rsp10
security10
c1710
ecdsa10
smartcard10
socket10
Programming languages (10)
Github contributions (5)
mbrossard/threadpool
Jun 2011 - Dec 2020
A simple C Thread pool implementation
Role in this project:
Back-end Developer
Back-end DeveloperContributions:41 commits, 7 PRs, 20 pushes in 9 years 7 months
Contributions summary:Mathias primarily focused on implementing network-related functions, including both TCP and Unix domain socket client and server implementations. They added functions for writing and reading to sockets, daemonizing processes, and handling signal termination. The user also contributed to improvements in the thread pool library, introducing a count element and implementing graceful shutdown functionality. These changes indicate a focus on improving the robustness and functionality of the network and thread management aspects of the project.
thread-pool
ARMmbed/DAPLink
Dec 2020 - Feb 2022
Role in this project:Back-end Developer & Build Engineer
Back-end Developer & Build EngineerContributions:18 reviews, 325 commits, 64 PRs in 1 year 2 months
Contributions summary:Mathias made several contributions to the project by modifying Python scripts related to packaging and release processes. They addressed issues with how the scripts interacted with their callers when used as libraries, and added support for progen, a build tool, to file copying and post-build script execution. Furthermore, the user implemented the functionality to compile with progen for supporting similar features as in mbedcli_compile.py to generate project files. This suggests the user has involvement in both the build process and the core functionality of the project.
firmwaremicrocontrollermbeddebugmcu
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.