Sammy Teillet
CTO & Co-founder at Rocapine
Paris, Ile-de-France
Summary
🤩
Rockstar🎓
Top SchoolSammy Teillet is a seasoned technology leader and entrepreneur with 12 years of experience building product-focused engineering teams and developer-facing tools. As CTO and co-founder of Rocapine and former Head of Tech at Libeo, he has deep domain expertise in fintech platforms that simplify B2B payments and financial workflows for SMEs. He combines hands-on full‑stack development—visible in front-end contributions to community projects like twenty—with strategic product and open-source sensibilities from founding DataDrift. Sammy also teaches at EPITA, bridging industry practice and academic training in financial mathematics from ENSTA and Paris I. Based in Paris, he has repeatedly turned complex financial and data problems into pragmatic, testable systems and enjoys bringing a “green” mindset to engineering and projects outside pure finance.
12 years of coding experience
6 years of employment as a software developer
Master 2 Financial Mathematics, Master 2 Financial Mathematics at ENSTAMMMEF Mathématiques de finance, MMMEF Mathématiques de finance at University of Paris I: Panthéon-Sorbonne
English, Japanese, Spanish
Stackoverflow
21reputation
4kreached
1answer
0questions
Github Skills (18)
javascript10
typescript10
ui-design10
uid10
front-end-development10
typescript-types10
typescripts10
react10
testing9
css9
monorepo7
drizzle6
orm6
webpages6
web-content6
Programming languages (13)
Github contributions (5)
twentyhq/twenty
Apr 2023 - Jun 2023
Building a modern alternative to Salesforce, powered by the community.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:26 reviews, 53 PRs, 134 pushes in 2 months
Contributions summary:Sammy contributed significantly to the front-end of the "twenty" project, a modern alternative to Salesforce. Their work included implementing new UI components like checkboxes and company chips, refactoring existing components, and setting the design for table components. They also integrated various features, enhanced the table layout, and improved the code by using theme spacing and color. Furthermore, the user added testing for the new components they implemented.
crmcrm-systemgood-first-issuegraphqljavascript
OpenWebhook/documentation
Apr 2022 - Nov 2022
Documentation and blog of OpenWebhook. Base on docusaurus.
Contributions:83 commits, 29 PRs, 58 pushes in 6 months
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