Mitchell Grenier
Security Engineering Manager at Chainlink Labs
Menlo Park, California, United States
Summary
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Rockstar🎓
Top SchoolMitchell Grenier is a Security Engineering Manager with 13 years of hands-on experience building and hardening systems at the intersection of security and infrastructure, currently leading security engineering at Chainlink Labs in Menlo Park. He has a strong systems and Rust background, contributed to Facebook’s osquery project (notably refactoring core hashing functions), and has applied that low-level expertise at BitMEX and other security roles. Known for translating deep technical problems into practical, auditable solutions, he blends secure-by-design thinking with production engineering discipline. His trajectory from Waterloo BCS to multiple Facebook internships and full-time roles highlights a long-running commitment to open-source tooling and observability. Colleagues count on him for pragmatic cryptographic hygiene and improving core utilities that power detection and monitoring at scale.
13 years of coding experience
5 years of employment as a software developer
Bachelors of Computer Science Computer Science, Bachelors of Computer Science Computer Science at University of Waterloo
Japanese
Stackoverflow
927reputation
99kreached
4answers
36questions
Github Skills (17)
monitoring10
c-language10
network-intrusion-detection10
hashing-algorithm10
cprogramming-language10
intrusion-detection10
security9
macos8
php6
android6
bluetooth6
autocomplete6
system-design6
java6
android-activity6
Programming languages (11)
Github contributions (5)
osquery/osquery
Jan 2015 - Jan 2019
SQL powered operating system instrumentation, monitoring, and analytics.
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:5 releases, 162 commits, 262 PRs in 4 years
Contributions summary:Mitchell primarily contributed to the `osquery/osquery` repository by implementing and refactoring hashing-related functionalities, particularly focusing on MD5, SHA1, and SHA256 computations. Their commits involved changes to `osquery/tables/utility/hash.cpp`, moving and refactoring code into the `osquery/core/hash.cpp` file and adding functionality to the config files. The user also modified the config file to use updated hashing implementation. This suggests a focus on improving core system utilities and potentially enhancing security related components by modifying the hashing algorithms.
monitoringoperating-systemsqlsecurityintrusion-detection
obelisk/plaid
Mar 2024 - Jul 2026
Process logs and take actions. Wasm + Rust
Contributions:30 releases, 269 reviews, 174 PRs in 2 years 4 months
rust
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