CV

I care about interfaces that feel clear, fast and reliable when the product gets complex.

About me

I'm Guillaume,

A frontend developer from France, focused on Web3 and fintech products: trading market screens, dashboards, wallet flows & API-connected interfaces.

Before coding, I made leather goods at Hermes.
42 Lyon gave me the engineering base; craft gave me patience, precision and a high bar for finished work.

Portrait of Guillaume Dumas

My Experience

Jupiter logo

Early 2026

Frontend Consultant

Jupiter

Adrena logo

Late 2025

Frontend Intern

Adrena

Versus logo

2024 - 2025

Founder & Developer

Versus

42 Lyon logo

Late 2023 - Mid 2025

Common Core Graduate

42 Lyon

Magicake logo

2023 - 2025

Founder

Magicake

Doge Capital logo

2021 - 2024

Board Member

Doge Capital

Hermes logo

2017 - 2021

Leather Artisan

Hermes

My Stack

frontend

TypeScriptTypeScript
JavaScriptJavaScript
ReactReact
Next.jsNext.js
ReduxRedux
Tailwind CSSTailwind CSS
Component architecture
State management
Responsive UI

data & APIs

Node.jsNode.js
PythonPython
MySQLMySQL
PostgreSQLPostgreSQL
API integration
Data modeling

blockchain

SolanaSolana
Web3.jsWeb3.js
RustRust
On-chain data
Smart contract interactions
Wallet interactions

engineering

GitGit
DockerDocker
CC
C++C++
Performance
Maintainability

AI

CursorCursor
ClaudeClaude
CodexCodex
Agentic workflows
Product specifications
Feedback loops
Verification
Agent Skills

SELECTED PROJECTS

Jupiter Predict preview
_01.

Jupiter Predict

TypeScript
React
Tailwind CSS
_02.

Adrena

TypeScript
React
Tailwind CSS
_03.

Versus

TypeScript
Next.js
React
_04.

ft_transcendence

TypeScript
Node.js
Fastify
_05.

42 Common Core

C
C++
Unix

Demos

talibabtou@gmail.com