Marc Simpson
Associate Principal, Trust And Safety
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolMarc Simpson is an Associate Principal in Trust and Safety at Google with 14 years of cross-platform software engineering experience spanning systems-level C/C++ and interpreter work through modern Go and Python services. He combines deep backend expertise (including JVM/Spring, Hibernate, MongoDB) with practical data and automation skills used in ad-exchange tooling, predictive analytics, and large-scale log processing. An active systems hacker, he has contributed to the core Rebol interpreter—improving portability and low-level series/browse behavior—reflecting long-standing interest in language runtimes and embedded systems. Comfortable shipping full-stack products, Marc pairs production-grade engineering practices (CI, Agile, design patterns) with research-minded curiosity rooted in an MA in Linguistics, which informs his work on personalization, trust, and safety signals. Based in San Francisco, he brings a blend of strategic client-facing consulting and hands-on implementation to complex safety and infrastructure problems.
15 years of coding experience
4 years of employment as a software developer
MA, Linguistics (SIP), MA, Linguistics (SIP) at Concordia UniversityBA (Hons.), SPS (Part 1), Linguistics (Part 2), BA (Hons.), SPS (Part 1), Linguistics (Part 2) at Cambridge University
Github Skills (3)
c1710
rebol10
c1110
Programming languages (16)
Github contributions (5)
rebol/rebol
Mar 2013 - Mar 2013
Source code for the Rebol interpreter
Role in this project:
Backend Developer
Backend DeveloperContributions:6 commits in 9 days
Contributions summary:Marc primarily contributed to the core Rebol interpreter, focusing on backend logic and system-level interactions. Their work included modifying the BROWSE function, implementing and optimizing its behavior across different operating systems (Mac OS X and POSIX). Furthermore, the user addressed potential issues with tuple division by implementing rounding and later refactoring to use an internal rounding implementation for improved portability. Finally, the user improved the functionality of binary series creation to avoid unintended side effects.
interpreterrebol
0branch/qtide
Jan 2015 - Apr 2018
Contributions:36 pushes, 5 branches, 1 tag in 3 years 3 months
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