William Beuil
Founding Engineer at Tolmo
Beauvais, Hauts-de-France
Summary
🤩
Rockstar🎓
Top SchoolWilliam Beuil is a senior full-stack engineer with 10 years of experience building web, mobile and CLI tools, currently shaping AI-powered end-to-end testing at Heal.dev. He specializes in JavaScript (React/React Native) and Go, and has a strong track record hardening infrastructure-as-code tooling through significant contributions to Snyk CLI and driftctl. As a former co-founder and CTO, he pairs product instincts with hands-on engineering—shipping React Native apps and creating a version manager for open-source tooling. His background spans fintech and trading desks, giving him a pragmatic, risk-aware approach to secure systems. An open-source enthusiast based in Beauvais, he balances engineering rigor with entrepreneurial curiosity and a habit for CrossFit-fueled persistence.
10 years of coding experience
9 years of employment as a software developer
Ingénieur Informatique, Computer Science, Ingénieur Informatique, Computer Science at 42 ParisProgramme Grande Ecole, Double Diplôme Master en Management et Master of Science (MSc) en Financial Markets, Programme Grande Ecole, Double Diplôme Master en Management et Master of Science (MSc) en Financial Markets at EDHEC Business SchoolLicence 2, Economie Finance, Licence 2, Economie Finance at Faculté Libre des Sciences Economiques et de Gestion
French, English
Stackoverflow
87reputation
6kreached
0answers
8questions
Github Skills (22)
snyk10
testing10
security10
go10
aac10
infrastructure-as-code10
terraform9
aws9
terraformer9
cloud-services7
cloud-infrastructure7
parse-platform6
cocoa-touch6
observable6
python6
Programming languages (13)
Github contributions (5)
snyk/driftctl
Dec 2020 - Jan 2023
Detect, track and alert on infrastructure drift
Role in this project:
Backend Developer
Backend DeveloperContributions:725 reviews, 263 commits, 184 PRs in 2 years 1 month
Contributions summary:William contributed to the `snyk/driftctl` repository, which focuses on detecting and tracking infrastructure drift. Their commits primarily involve modifying Go code, particularly within the `pkg/cmd/scan.go`, `pkg/analyser/analyzer_test.go`, and `pkg/filter/driftignore_test.go` files. The changes range from merging branches and fixing issues to ensuring code consistency across resources and applying test data, indicating a focus on backend development and quality assurance for infrastructure-as-code tools.
alertdevopsinfrastructuredetectinfrastructure-as-code
snyk/cli
Jan 2022 - Nov 2022
Snyk CLI scans and monitors your projects for security vulnerabilities.
Role in this project:Security Engineer
Security EngineerContributions:24 reviews, 25 commits, 17 PRs in 10 months
Contributions summary:William primarily focused on enhancing the security features of the Snyk CLI. Their contributions included implementing entitlement checks to restrict access to specific functionalities, such as Infrastructure as Code (IaC) scanning and custom rules. They also added drift analysis capabilities and integrated cloud context features to the CLI, along with updating dependencies like driftctl. These changes demonstrate a focus on improving the CLI's security posture and expanding its functionality related to IaC and cloud environments.
clisecuritysnykvulnerabilitiesmonitor
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