Xavier Hernandez
Frontend Engineer, Product Engineer, Frontend Technical Owner
I build digital experiences with engineering depth and product judgment. 👾
I lead frontend architecture and delivery for production applications. Before engineering, I spent ten years in product operations, helping me connect technical decisions to user needs and business constraints.
Tools I work with
- CSS
- TypeScript
- Tailwind CSS
- Vue
- React
- Nuxt
- Next.js
- Cloudflare
- Docker
- OpenAI
- Claude Code
- Node.js
- GitHub
- GitLab
About
I’m Xavier, a frontend engineer and technical owner based in La Rochelle. At Raccourci Agency, I design frontend architecture and build TypeScript and Vue.js applications for the tourism industry, with a focus on reusable components, accessibility, performance, testing, API contracts, and product decision-making.
During my decade at Winamax, I learned to balance user behavior, operational constraints, and commercial outcomes with technical quality. I’m drawn to roles where I can help shape both the product and its technical direction, particularly around AI-powered experiences. Alongside AI-assisted engineering, I’m continuing to deepen my expertise in agentic systems and UX.
Experience
Frontend engineering, grounded in a decade of product operations.
Professional experience
– Present
Raccourci Agency
CurrentFrontend Developer — Frontend Technical Owner
La Rochelle, France
Own frontend technical direction for TypeScript and Vue.js applications, including architecture, technology selection, component strategy, accessibility, performance, testing, and documentation. Built Youbook's frontend and embeddable Web Components from product inception, delivered an internal ERP for catalogue and invoicing workflows, and developed interfaces for AI-powered features. Collaborate with backend engineers on API contracts and backlog priorities.
–
Winamax
Live Operations Manager
Paris, France
Managed planning and live operations for online poker games, promotions, and events, including prize pools and liquidity. Analyzed product performance, ran A/B tests, designed engagement mechanics. Worked in collaboration with product, engineering, analytics, marketing, creative, and support teams.
–
Winamax
Marketing Coordinator
London, United Kingdom
Supported localization and launch of online-gaming products for the French market. Created promotional content and coordinated offers and product launches with B2B partners and internal teams.
Selected work
Products and technical challenges that show how I connect frontend engineering with operational needs.
E-commerce · Frontend architecture
Youbook — e-commerce for tourism destinations
A TypeScript and Vue 3 e-commerce product used by more than ten tourism destinations, with interfaces that can also be embedded in third-party sites.
Internal tools · Product engineering
Internal ERP — catalogue and invoicing workflows
An internal product that brings Raccourci’s catalogue of products and services together with invoice-generation workflows for commercial teams.
Tourism · Frontend development
RoadBOOK — evolving an established tourism platform
Frontend feature work and modernization for a production application used by more than 100 tourism destinations.
Tourism · Online reputation
Fairguest — bringing tourism reviews together
Frontend work on a tourism product used by more than 50 destinations and aggregating reviews from more than 20 platforms.
What I bring to a team
Hands-on frontend ownership, grounded in product operations and delivery.
- 01
Frontend architecture
TypeScript, Vue.js, React, reusable components, Web Components
- 02
Product engineering
Business workflows, prioritization, API contracts, technical trade-offs
- 03
Web performance
Optimization for accessibility, Core Web Vitals. Testing with Vitest, Playwright
- 04
AI-powered workflows
AI-assisted engineering. User interfaces and component systems for AI agentic systems
A few useful details
What kind of roles are you considering?
Senior Frontend Engineer and Product Engineer roles with meaningful input into technical and product decisions. I’m especially interested in teams building AI-powered products.
Where are you based?
I’m based in La Rochelle, France, and open to remote or hybrid opportunities in France and the EU, including English-speaking teams.
What is your main technical focus?
TypeScript and frontend architecture, with production experience in Vue.js, Nuxt, React, Web Components, accessibility, performance, and automated testing. AI agentic systems powered by LangChain and LangGraph.
Let's bring your idea to life
I'm always open to new opportunities. Feel free to reach out to discuss your project.