Baptiste Devessier
Paris, Ile-de-France
Summary
🤩
Rockstar🎓
Top SchoolBaptiste Devessier is a Fullstack Web Developer based in Paris with 8 years of hands-on experience building React, React Native and Node.js applications. He specializes in state-driven architectures with XState, mentoring teams and publishing resources like a State of XState report and a mini-email course. Baptiste has shipped production workflow and automation tooling—from a React Flow visualizer and Next.js orchestrator for the open-source Twenty CRM to IVR systems and Windmill workflow generators—often turning visual designs into executable state machines. As a frequent contributor to front-end components and UI work on community-driven projects, he blends design sensibility with TypeScript-driven robustness. Outside client work he shares knowledge via a YouTube channel and a newsletter, indicating a strong focus on developer education and community building.
8 years of coding experience
3 years of employment as a software developer
Architecte en Technologie du Numérique, Computer Science, Architecte en Technologie du Numérique, Computer Science at 42
Stackoverflow
1reputation
0reached
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0questions
Github Skills (8)
typescript10
typescripts10
front-end-development10
ui-design10
react10
typescript-types10
javascript9
json8
Programming languages (9)
Github contributions (5)
twentyhq/twenty
Jun 2024 - Apr 2026
The open alternative to Salesforce, designed for AI.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:686 reviews, 393 PRs, 980 pushes in 1 year 10 months
Contributions summary:Baptiste primarily worked on front-end components and features within the twentyhq/twenty repository, focusing on the user interface of the CRM platform. Their contributions included visualizing workflows using the React Flow library and implementing new steps with creation of new actions within the workflow editor. They also made improvements to the design of the right drawer and added form fields, including select, text, number, boolean, and date/time inputs. Their work involved significant interaction with TypeScript, React, and UI design principles.
aisalesforcecrmgraphqlmarketing
Devessier/todo-app-xstate-react
Jan 2022 - Apr 2022
Simple todo list application made with XState and Next.js
Contributions:1 release, 39 commits, 2 PRs in 2 months
nextjsxstatereact
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