Freelancer profile translated to English.
Back to original languageAbout Romain
Do you need a dev who delivers, not a profile that promises.
Senior fullstack developer with 10+ years of experience, I specialize in two complementary areas: modern React / Next.js architectures (TypeScript, SSR/ISR, Tailwind, Prisma) and high-performance custom WordPress (custom themes, ACF, Gutenberg, WooCommerce).
I work on high-traffic projects, demanding product environments, and agile teams — with a real results-driven approach: Lighthouse 90+, WCAG AA, automated tests (Playwright, Cypress), optimized Core Web Vitals.
Among my recent clients: RTL Group, Backmarket, Vinci Construction, FDJ, Konbini, Hachette.
Certified React trainer — 50+ developers coached.
Available for freelance missions in Paris or full remote. I integrate quickly into existing teams and am autonomous from the first sprint.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- FreelanceFullstack Developer · React · Next.js · WordPressDIGITAL AND ITJune 2020 - Today (6 years and 2 months)Paris, FranceFullstack React / Next.js
- Development of full-stack Next.js applications: App Router, server components, API routes, SSR / ISR rendering according to SEO and performance constraints
- Data modeling and access with Prisma ORM + PostgreSQL — typed schemas, migrations, complex relationships
- Schema validation with Zod, state management with Zustand / React Query, authentication via NextAuth
- Reusable components in TypeScript + Tailwind + Atomic Design, automated Cypress tests on critical user flows
Custom WordPress- Fully custom themes (ACF Pro, Gutenberg, WooCommerce) — component-oriented PHP architecture, modular SCSS
- Development of advanced Gutenberg blocks and custom WooCommerce funnels
- Performance: Lighthouse scores 90+ in production — lazy loading, code splitting, cache strategies, asset optimization, CDN
- RGAA / WCAG AA Accessibility: semantic structure, keyboard navigation, contrasts, ARIA attributes — compliance verified with Axe and Lighthouse
- Go and UpLead Front-End Developer · React / Next.js / WordPress / SymfonyDIGITAL AND ITNovember 2021 - Today (4 years and 9 months)Paris, FranceMulti-product environment: internal SaaS tools, mobile application (React Native), high-audience media platforms (several million visitors/month) and e-commerce institutional websites.
- Architecture and development of full-stack internal tools with Next.js, TypeScript, Prisma, and Zod — API routes, server components, schema validation
- Integration and maintenance of a leading European media group's platforms: performance optimization (Core Web Vitals, Lighthouse), implementation of SSR/ISR rendering for high-traffic pages
- Setup of end-to-end testing pipelines with Playwright on critical user flows
- Development of a cross-platform mobile application in React Native (Expo) — navigation, state management, REST API integration, and publication on the App Store / Play Store
- Design and integration of custom institutional websites on WordPress (custom themes, ACF, Gutenberg) and Symfony (Twig Components)
- Design of reusable components using Atomic Design, with Storybook
Stack: Next.js · React · React Native · TypeScript · Prisma · Zod · Symfony · WordPress · Tailwind - Jedy FormationJavaScript - React.js TrainerEDUCATION AND E-LEARNINGJanuary 2019 - January 2022 (3 years)Design and delivery of professional training on JavaScript ES6+ and React.js for junior and mid-level profiles.
- Programs focused on best practices: hooks, context, state management, testing (Jest/React
- Testing Library)
- Coaching of 50+ learners towards concrete skill development on real projects
Clients: French Army, ICAN, IPSSI
Reviews
Recommendations
ST
NF
+1
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Education
- Web Project Manager specializing in Graphic Design & WebdesignSUP'Internet, school of internet professions2015