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Loic SimonLS

Loic Simon

Fullstack Developer React / Node.js

€500/day
Guipavas, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Loic

Fullstack & mobile development - Let's bring your ideas to life, from MVP to production.


Hello! Are you looking for an autonomous profile, capable of taking your product from end to end without needing to be micromanaged?

How I can help you:
Whether you're a startup in the launch phase or a technical team looking for reinforcement, I adapt quickly to produce functional, robust, scalable deliverables that respect the user experience.

My areas of expertise:

I work on the entire lifecycle of your web and mobile projects:
  • Custom web applications:Architecture and development of dynamic and responsive web applications
  • Cross-platform mobile applications:Development of iOS and Android applications
  • Robust APIs & Backend:Design of high-performance and secure servers, REST / GraphQL API architecture
  • Data Management:Database modeling and optimization (Mongodb, Postgres)
  • Refactoring & Migration:Transitioning legacy code to clean, maintainable Typescript.

My added value:

  • Mindset:I don't just churn out code. I understand your challenges and ensure that each feature brings value to your users.
  • Self-taught:My journey has taught me to learn quickly and well. I can quickly become operational on your stack.
The little extra (that makes all the difference):
When I'm not behind my code editor, I'm a big fan of role-playing games. As a game master, I've developed a strong ability to manage the unexpected, structure complex ideas, and demonstrate great adaptability. Skills that I transpose daily into my tech project management: I know how to listen, collaborate, and pivot quickly when the scenario (or the project) demands it.

Let's discuss your project! Contact me for an initial chat (quick and without obligation).
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Pickiit
    Securing an application
    RESTAURANTS AND FOOD SERVICE
    May 2026 - June 2026 (1 month)
    remote subcontracting.

    Backend security:
    request scope, roles, CRUD, security vulnerabilities and data leaks.
    Tech: redwood, graphQL, prisma, node, react, jest, vercel, git

    GDPR compliance

    Adapting the mobile application to new security standards.
    tech: react native, expo
    React Native Node.js GraphQL React.js Cybersecurity
  • U2042
    Fullstack Developer Intern - Creation of a collaborative inventory application & PWA
    July 2024 - September 2024 (2 months)
    Brest, France
    As part of an internship with the company U2042, I designed and developed a collaborative inventory application entirely on my own. The main objective was to provide an intuitive and secure solution enabling individuals and professionals to manage and share real-time asset inventories.

    Managed the entire application lifecycle: requirements gathering (personas and competitor benchmarking), technical design, and production deployment.

    Technical achievements:

    - Backend architecture & API:Setup of Strapi + PostgreSQL
    • Database modeling and REST API development.
    • Access security and role/permission management
    • Endpoint testing
    - Frontend & UX:

    • Interface development usingReact**, architected for future transition to **React-native
    • Integration of a modern, fluid, and responsive design withMaterial-UI
    • Theme management (Light / dark) viaReact Contextand native application internationalization (**i18next**)
    • Route security withReact Router
    - Features & DevOps:

    • Generation of secure and temporary invitation links
    • Service worker configuration for implementing a Progressive Web App (PWA). Crucial for offline use.
    • Production deployment of V1, managed via PM2 and distributed via Nginx
    React.js Strapi PostgreSQL Material UI Progressive Web App (PWA)

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