Marc-andré Tremblay
Co-Founder & CTO at SplitSecure
San Francisco, California, Canada
Summary
🤩
Rockstar🎓
Top SchoolMarc-andré Tremblay is a security-focused software engineer and co-founder/CTO based in San Francisco with seven years of experience building reliable, privacy-conscious systems across startups and large tech companies. He has led security engineering efforts at Netflix, Stripe and Jump Trading, and now applies that operational rigor to product and architecture at his startup, SplitSecure. Known for meticulous, goal-oriented execution, he emphasizes correctness, maintainability and usability across the software lifecycle while treating security and privacy as first-class design constraints. An active contributor to open-source tooling, he implemented egress ACLs and observability enhancements for Stripe’s well-known smokescreen proxy, demonstrating practical experience with network controls and policy-driven systems. Colleagues describe him as driven by hard problems and committed to daily learning and knowledge sharing, blending hands-on implementation with strategic engineering leadership. He brings a rare combination of production security expertise and founder-level product sensibility.
8 years of coding experience
10 years of employment as a software developer
DEC Health Sciences, DEC Health Sciences at CEGEP Édouard-MontpetitUQAM | Université du Québec à Montréal
French, English
Github Skills (7)
access-control10
acl10
network-security10
go10
access-control-list10
yaml10
logging9
Programming languages (2)
Github contributions (5)
stripe/smokescreen
Jul 2018 - Mar 2019
A simple HTTP proxy that fogs over naughty URLs
Role in this project:
Back-end Developer
Back-end DeveloperContributions:76 commits, 30 PRs, 38 pushes in 8 months
Contributions summary:Marc-andré primarily focused on implementing an egress access control list (ACL) for the smokescreen proxy. They added the ability to load an egress ACL from a YAML file, defining rules for allowing or denying access to specific hosts based on service roles. The user refactored and updated dependencies, along with instrumenting the connection and acl decision process with metrics. Finally, the user added the option to disable certain policy actions.
http-proxy
tremblay-stripe/smokescreen
Jul 2018 - Aug 2018
A simple HTTP proxy that fogs over naughty URLs
Contributions:1 PR, 45 pushes, 5 branches in 27 days
urlsnaughtyproxyhttp-proxyreverse-proxy
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