Guillaume Dumas, Frontend Developer

Description

Frontend developer from Grenoble, trained at 42 School Lyon after a first career in high-end leather craft.

I like turning complex product flows into clear, readable interfaces that feel easy to pick up.

I care about details and the small defects users feel before they can describe them.

Domaines d’expertise

Langues

Anglais
Bilingue ou natif
Français
Capacité professionnelle complète

Préférences en matière de lieu de travail

En télétravail uniquement

Travaille majoritairement à distance

Jupiter
Frontend Consultant
DIGITAL AND IT
décembre 2025 - février 2026 (2 mois)
Frontend work on Jupiter Predict, a live market product inside a large Next.js and TypeScript codebase.
Reworked activity, For You, live option and leaderboard screens. Improved chart behavior, payment UI and desktop/mobile states.
Typescript Next.js Mobile development
Adrena
Frontend Intern
DIGITAL AND IT
juillet 2025 - décembre 2025 (5 mois)
Joined a trading product team and shipped roughly 30 merged PRs across UI, swaps and optimized API work.
Reworked trading UI, token selector, staking leaderboard and ALP screens. Integrated Jupiter swaps, campaign UI and mobile layout fixes.
Typescript Next.js Mobile development API
Versus
Founder & Developer
DIGITAL AND IT
juillet 2024 - juillet 2025 (1 an)
Built a real-time betting product around live AI fighting matches. Public testing: 100+ testers, around 100 SOL in total volume.
Owned the Twitch scraper, oracle and monorepo work. Handled timing bugs, invalid matches, refunds and payout logic.
Typescript React.js Rust

Soyez le premier à recommander Guillaume

Contribuez à la réussite de ce freelance en partageant votre expérience de collaboration avec lui.

A

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

B

Baptiste Duhen

Fullstack developer

4.6

(4)

5

A

Amed Hamou

Senior Lead Developer

4

(2)

7

A

Audrey Champion

Web developer

4.3

(3)

4

S’inscrire pour les voir

Common Core
42 Lyon
2025
Common Core
CAP Leatherworker
GRETA Lyon
2018
CAP Leatherworker

Consultez la formation qu'a suivie Guillaume