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Amaury HachetAH

Amaury Hachet

Next.js | React | Audit, Consulting and Expertise

€650/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Amaury

Web Developer | Next.js | React | TypeScript — Integration, Redesign and Team Coaching

Looking to evolve your web application without destabilizing your team or breaking existing systems? I intervene tostructure**, **modernize**, and **ensure the reliabilityof your React projects, while guaranteeingseamless integrationinto your current stack.

Performance & Optimization


*Optimizationof loading speed and responsiveness: **2 to 3 times faster applications**, reduced abandonment rates, significant improvement in user experience while reducing infrastructure costs.

Architecture & Quality

  • Creation of design systems with Storybook and integrated testing: Iaccelerated the developmentof new features through reusable, tested, and documented components, while ensuring **perfect visual consistency**.
  • Implementation ofcomprehensive testing strategies(unit, integration, and end-to-end): I reduced bugs in production andguaranteed stabilityof features with each update.

Technical Leadership

  • Training junior teams inbest development practices**: I **accelerated their skill developmentand autonomy, enabling **faster and higher quality deliveries**.
  • Reinforcing senior teams by bringing my technical expertise and field experience: I contributed tounblocking complex situationsand **optimizing development processes**.

Technical Stack

React - Next.js - TypeScript - Tailwind - Storybook - Playwright

My Commitment

  • Deliver **clear, robust, and maintainable code**, perfectly integrated into your processes.
  • Integrate quickly and concretely advancequality and stabilitywith each sprint.

Let's Take Action

Let's chat via video call about your challenges and priorities.

I respond within 1 hour.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Nice (up to 50km), Toulouse (up to 50km), Nantes (up to 50km)

Experience

  • Docaposte
    Web Developer | Next.js | React.js | TypeScript
    DIGITAL AND IT
    June 2024 - October 2024 (4 months)
    Nantes, France
    → Mission Objective:

    Develop and optimize the Front interface for the future Synergie website by integrating data from the Drupal back office.

    → Achievements:

    • Design of a reusable component library inReactJs/TypeScript/ **Tailwindcss**, improving visual consistency and development productivity.
    • Complete integration of NextAuth & Keycloak for secure and fluid authentication, ensuring a better user experience and enhanced security.
    • Implementation and performance optimization using **NextJs**, **Storybook**, Jest, **Playwright**, with caching and Docker/Github CI, reducing loading times and facilitating automated testing.

    → Technical Stack:

    NextJs, ReactJs, TypeScript, Tailwindcss, Drupal, Storybook, NextAuth, Playwright, Jest, Docker, Github CI
    Next.js Developer React.js Developer Web Developer Next.js React.js
  • Renault Digital
    Web Developer | Next.js | React.js | TypeScript
    AUTOMOBILE
    June 2023 - May 2024 (11 months)
    Valbonne, France
    → Mission Objective:

    Design and develop the interface for charging station administration, including user and rights management, and real-time statistics display.

    → Achievements:

    • Creation of a high-performance and responsive interface withNextJs/ReactJs/ **Tailwindcss**, offering custom mockups and fluid navigation for a better user experience.
    • Integration and visualization of geolocated data via Leaflet & **OpenStreetMap**, providing a real-time view of stations and optimizing decision-making.
    • Implementation of a component library tested with **Storybook**, Jest, **Playwright**, **Cypress**, and Docker/Github CI, ensuring quality, speed, and reliability of deployment on **Vercel**.

    → Technical Stack:

    NextJs, ReactJs, TypeScript, Tailwindcss, Leaflet, OpenStreetMap, Apollo Client, Storybook, Jest, Playwright, Cypress, Docker, Github CI, Vercel
    Next.js React.js Next.js Development Next.js Developer Web Development
  • 360 medics
    React Native Developer | React.js | TypeScript
    MEDICAL
    August 2022 - Today (3 years and 10 months)
    → Mission Objective:

    Develop, maintain, and optimize Bipper, a cross-platform instant messaging application (Mobile **ReactNative**, Desktop & Web **React.js**) with a complete backend infrastructure and an automated CI/CD pipeline.

    → Achievements:

    • Front-end and back-end performance optimization: improvement of GraphQL queries (caching, lazy loading, memoization), reducing unnecessary renders and increasing real-time fluidity under React.js / Apollo Client / Hasura.
    • Implementation of continuous automated deployment via **Github Actions**, Docker, AWS, and Circle CI, ensuring smooth delivery on iOS, Android, Web, and Desktop (Electron).
    • Advanced integration of cross-platform notifications and merging ofHasurabackends, with comprehensive testing (**Jest, Mocha, Cypress**) and analytical dashboards for performance and usage monitoring.

    → Technical Stack:

    React.js, **React Native**, TypeScript, Electron, GraphQL, Apollo Client, Nodejs, Hasura, PostgreSQL, Firebase, AWS, Docker, Github Actions, Circle CI, Jest, Cypress, Mocha
    React.js React Native Web Developer React.js Developer React Native Developer

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Education

  • Master's Degree (Apprenticeship)
    University of Strasbourg
    2013
    Ingénierie des Logiciels et des Connaissances en alternance durant les deux années
  • Computer Science Bachelor's Degree
    University of Strasbourg
    2011

Skill set

Categories