Freelancer profile translated to English.
Back to original languageAbout Alexandre
React.js | Next.js | TypeScript Frontend Developer — 7+ years of experience
Is your website or web application slow, difficult to maintain, poorly optimized for SEO?
I specialize in thedesign**, **development**, and **optimizationof **performant**, **accessible**, and business-oriented web applications.
My goal: to transform your mockups, ideas, or existing bases into robust,maintainable**, and **production-readyproducts.
I can help with:
- React.js / Next.js applications
- Frontend redesign and codebase modernization
- Pixel-perfect integration from Figma
- Performance, technical SEO, and Core Web Vitals
- Accessibility, responsive design, and UX quality
- Frontend architecture, reusable components, and clean code
- Landing pages, showcase websites, dashboards, SaaS, and e-commerce
Some references:
-ShipShop / LetterTrader: Next.js 15, React 19, TypeScript, Tailwind CSS, Payload CMS, and PostgreSQL marketplace.
-Pasqal: Frontend development with Astro, React, Storybook, and Playwright.
-Cro Metrics: JS/TS CRO experiments for Mattel, UNICEF, Calendly, or Hyatt Hotels.
-Decade: Next.js e-commerce, conversion-impact features, hotfixes, SEO, performance, and UX.
-Reeve: Audit, redesign, and SEO/performance improvement of a Next.js website.
Design System, Atomic Architecture, Clean Code, TDD.
My working method: clear scope, regular communication, clean code, post-production support.
Looking to launch a web project, redesign an existing application, or strengthen your team with an experienced frontend developer?
📞 Let's talk: I'm available for an initial video call to **understand your needs**, **clarify the technical challenges**, and **propose a concrete approach**.
Quick response guaranteed.
English
Fluent
French
Native or bilingual
Spanish
Fluent
Can work on-site
Paris (up to 50km), Bordeaux (up to 50km), Marseille (up to 50km), Lyon (up to 50km), Nantes (up to 50km)
Experience
- PYM TCCFrontend DeveloperHEALTH AND WELLNESSMarch 2026 - April 2026 (1 month)Paris, FranceRedesign of a showcase website in Astro.js for a mental preparation therapist---Complete redesign of a showcase website for a coaching and mental preparation professional. The project involved modernizing an existing web presence by migrating to Astro.js, a framework focused on performance and static generation, perfectly suited for content-driven websites.The main objective was to provide a fluid and professional user experience, reflecting the image of a high-end practitioner, while maximizing performance and organic visibility.Key achievements:- Audit and analysis of the existing site, technical and UX recommendations- Pixel-perfect integration from mockups- On-page SEO optimization (semantic structure, meta tags, Core Web Vitals performance)- Optimized loading times thanks to Astro's island architecture and static rendering- Mobile-first responsive design for optimal experience on all devices- Implementation of a clear content structure facilitating future updatesTechnical Stack:Astro.js, TypeScript, Tailwind CSS
- DECADEFrontend DeveloperDIGITAL AND ITNovember 2025 - January 2026 (2 months)Paris, France*Delivery of high-impact conversion features: cart, shipping, payment, order confirmation, and promo code management.
- Handling of run tickets, hotfixes, and bug fixes.
- Continuous improvement of site quality through performance, UX, SEO, tracking, error handling, and application observability optimizations.
- Contribution to the progressive modernization of the Next.js (v12 => v15) and TypeScript frontend architecture, in conjunction with business APIs and complex e-commerce environments.
- Ship ShopFrontend Developer | React.js | Next.js | TypescriptE-COMMERCEJuly 2025 - October 2025 (3 months)Boston, United StatesLetterTrader is a marketplace for buying and selling newsletters.As the lead frontend developer on this project, I was responsible for the design, development, and optimization of the user interface, as well as the implementation of advanced features and the management of the technical architecture.Details of tasks performed:- Design and development of the Next.js 15 application with SSR, SSG.- Creation of reusable React.js components in TypeScript- Implementation of state management with custom hooks and Context API- Optimization of the responsive UI with Tailwind CSS v4 and Shadcn/ui.- Integration of interactive analytics dashboards, a RichText editor, and advanced search and filtering functionalities.Stack: Next.js 15, React 19, TypeScript, Tailwind CSS, Payload CMS, PostgreSQL, Drizzle ORM, Docker.
Reviews
Recommendations
FU
FU
+3
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Bootcamp certificateLe Wagon2018Le Wagon Bordeaux (Batch #127). Le Wagon est un bootcamp qui propose des formations intensive diplômantes en développement web.
- MasterINSEEC2011Finance and Business Management
Certifications
- CSS for Javascript developerJosh W Comeau2022
- Joy of ReactJosh W Comeau2023