Clayton Smith
Tecumseh, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolClayton Smith is a software security leader with 11 years of experience specializing in cryptography, application security, and software-defined radio. He has led application security at Shopify and designed secure products and testing tools at Entrust, where he also prototyped a mobile smart credential and built an SDR-based ISO 14443 sniffer. Clayton combines deep academic foundations in mathematics and combinatorics with practical secure-coding expertise, from kernel/driver work to mobile and embedded systems. His open-source contributions to the mruby core show a pragmatic focus on hardening language runtimes by fixing overflows, parser crashes, and string/array vulnerabilities. Based in Tecumseh, Ontario, he brings a mix of hands-on engineering, threat-aware architecture, and incident-driven remediation experience.
11 years of coding experience
19 years of employment as a software developer
Bachelor of Mathematics, Pure Mathematics, Bachelor of Mathematics, Pure Mathematics at University of Waterloo
English, Esperanto, Bulgarian, French
Github Skills (16)
c1710
memory-management10
overflow10
debug10
c1110
ruby10
parallel-arrays9
multidimensional-arrays9
typed-array9
interpreter9
arrayobject9
dynamic-array9
strings9
text-manipulation9
parser8
Programming languages (8)
Github contributions (5)
mruby/mruby
Nov 2016 - Apr 2019
Lightweight Ruby
Role in this project:
Back-end Developer
Back-end DeveloperContributions:22 commits, 22 PRs, 125 comments in 2 years 5 months
Contributions summary:Clayton primarily focused on fixing bugs and improving the stability of the mruby core, specifically within the `mruby-struct` and core Ruby language features. Their contributions involved correcting potential integer overflows, addressing crashes in the parser and interpreter, and resolving vulnerabilities related to string manipulation and array handling. These changes demonstrate a focus on improving the robustness and security of the mruby environment.
ruby
Shopify/ess
May 2017 - May 2018
Shopify's Enterprise Script Service
Contributions:33 commits, 23 PRs, 16 pushes in 1 year
enterpriseshopify
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