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Sacha L.SL

Sacha L.

Front-End Developer | NextJS Expert

€350/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sacha

👨‍💻 About Me
Passionate about web development, I am an experienced developer specializing in Next.js, a powerful technology that combines performance, flexibility, and SEO. With several years of experience in creating modern, scalable, and optimized web applications, I support companies in the realization of their digital projects, from idea to production.

đź’ˇ What I can bring you
Frontend Development: Modern, performant, and responsive user interfaces with React and Next.js.
SEO and Performance: Advanced optimization of performance and loading times thanks to Next.js's SSR/SSG rendering.
Custom Backend: Robust REST and GraphQL APIs with Node.js and integrations with databases (MongoDB, PostgreSQL, Firebase, Supabase).
Custom Solutions: Implementation of full-stack projects, CMS integration (Strapi, Sanity.io, etc.), and deployment management on Vercel, AWS, or Docker.


⚙️ Mastered Technologies
Frontend: React, Next.js, Tailwind CSS, Chakra UI
Backend: Node.js, Express.js, NestJS
Database: MongoDB, PostgreSQL, MySQL
DevOps: Vercel, Docker, CI/CD, Git
Other Tools: TypeScript, GraphQL, Prisma, Redux, Webpack


📬 Ready to start a project?
Contact me, and let's discuss your digital ambitions together!
  • French

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • LuneoStudio
    Implementation of an internal platform for managing teams and operations
    August 2025 - October 2025 (2 months)
    🎯 Mission Objective

    Support the company in its digital transformation to optimize internal management, improve productivity, and centralize its business tools.

    🛠️ Technologies Used

    React, Supabase

    🚀 Achievements

    Design and deployment of an interactive internal planning tool for effective team coordination.

    Implementation of a comprehensive system for tracking interventions and appointments.

    Integration of electronic contract signing, directly from client and technician applications.

    Development of an analytical dashboard for tracking sales performance.

    Digitalization and automation of insurance file management for faster and simpler processing.

    Creation of a custom inventory management system, integrated with the rest of the platform.
    Next.js Supabase CI/CD electronic signature
  • Digifeel
    Optimization and enhancement of a management tool for NFC tags and Google reviews
    January 2025 - July 2025 (6 months)
    🎯 Mission Objective

    Improve an existing client dashboard to facilitate NFC tag management and Google statistics tracking, by adding practical features and fixing bugs for a better user experience.

    🛠️ Technologies Used

    Laravel, MySQL

    🚀 Achievements

    Addition of specific features to enhance the dashboard and simplify NFC tag management.

    Creation of a team system allowing members of the same group to access and manage other team members' NFC tags.

    Bug fixes and adjustments to improve dashboard stability and performance.

    Collaboration with the team to ensure data reliability and security.
    Laravel MySQL Front-End Development
  • Momentoom
    Development of a PWA for data entry for sanitation agents
    SOFTWARE PUBLISHING
    October 2024 - October 2024
    Paris, France
    🎯 Mission Objective

    Facilitate the work of sanitation agents in the field by allowing them to enter their reports, even without an internet connection, through a performant and reliable Progressive Web App (PWA).

    🛠️ Technologies Used

    NuxtJS, Pinia, Axios, Service Worker

    🚀 Achievements

    Development of a Progressive Web App (PWA) accessible on all devices, with a fluid online and offline user experience.

    Implementation of an automatic data synchronization system upon reconnection.

    Integration of secure local storage for temporary report saving.

    Use of Service Workers for cache management and offline access.

    Optimized front-end architecture with NuxtJS and Pinia for clear and performant state management.
    Pinia Nuxt.js Service Worker Axios PWA

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Education

  • BTS SIO
    ITIS
    2021
  • Bachelor Digital Project Manager
    EEMI
    2023

Skill set

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