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Samy MosaSM

Samy Mosa

React.js, Node.js, TypeScript Developer

€400/day
Strasbourg, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Samy

FullStack Web Developer | React.js | Node.js | TypeScript

Is your web application showing limitations in performance, stability, or scalability?

I step in to take over existing projects or develop your product with a modern stack inReact.js, Node.js, and TypeScript**, to deliver a robust, maintainable, and future-proof application. I also integrate **AI functionalitieswhen they provide a concrete gain in efficiency or business value.

A Web Developer specializing inReact.js, Node.js, and TypeScript**, I support **startups, SMEs, and product teamson high-stakes web projects: structuring MVPs, application redesigns, scaling up, or adding AI components.

My role: transforming your business needs into reliable applications, with a particular focus on performance, code readability, and user experience.

Among the projects I work on:
-> B2B and B2C SaaS Applications
-> Dashboards and business tools connected to APIs
-> Taking over and redesigning applications in TypeScript
-> Integration of AI functionalities: assistants, automations, data analysis and generation

My approach is **turnkey**: a stable, documented, and scalable product that doesn't require you to constantly fix the same technical issues.

Stack & methods: React.js, Node.js, TypeScript, JavaScript, REST API, modular architecture, AI service integration, testing, and performance best practices.

Want to launch or evolve a web product with a Web Developer specializing in React.js, Node.js, and TypeScript?

Contact mefor an initial video call to scope out your project.Quick response guaranteed.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Haiku
    Fullstack Web Developer | React.js | Node.js | TypeScript
    SOFTWARE PUBLISHING
    September 2025 - Today (9 months)
    Bordeaux, France
    → Mission Objective: Develop a LegalTech tool to simplify the daily lives of lawyers using AI

    → Achievements:
    • Frontend developmentReact.js + TypeScriptfor document consultation and workflow management.
    • BackendNode.js + Adonisfor ingestion, processing, and automated document updating.

    RAGpipeline integrating internal documents and external APIs, with sensitive data security.
    • Front-end and back-end optimization for workflow performance and reliability.

    → Technical Stack:
    React.js, Node.js, TypeScript, Adonis.js, PostgreSQL, Prisma ORM, RAG (AI), CI/CD, Git
    React.js TypeScript Node.js Adonis.js Prisma
  • International Telecommunication Union
    Frontend Web Developer | React.js | TypeScript
    TELECOMMUNICATIONS
    July 2025 - Today (11 months)
    Genève, Switzerland
    → Mission Objective: Modernize a WordPress site with React.js + TypeScript and integrate an AI search engine (RAG)

    → Achievements:
    • Frontend refactoring and modernizationReact.js + TypeScripton WordPress.
    • Integration of anAI search engine (RAG)for intelligent exploration of institutional content.
    • Optimization of loading time and overall site performance.
    • Implementation of security and compliance best practices for an international website.

    → Technical Stack:
    React.js, TypeScript, WordPress, RAG (AI), Technical SEO, Web Performance, Compliance, CI/CD, Git
    React.js TypeScript Web Development artificial intelligence RAG
  • Capgemini Engineering
    Fullstack Web Developer | React.js | Node.js | TypeScript
    MEDICAL
    January 2024 - July 2025 (1 year and 6 months)
    Strasbourg, France
    → Mission Objective: Develop an AI-powered MedTech application to simplify the daily lives of healthcare professionals

    → Achievements:
    • Development of aReact.js/TypeScript**dashboard** offering interactive visualization of medical data withD3.jsand **ApexCharts**, for quick decision-making.
    Integration of AI and NLP functionalities**: voice transcription, real-time speaker separation, synthesis and summary generation, with connection to the **OpenAIAPI.
    • BackendNode.js + Express.jsfor data stream management, NLP processing, and AI feature orchestration.
    • Data storage withPostgreSQLto manage large volumes of medical data while ensuring performance, reliability, and scalability.

    → Technical Stack: React.js, Node.js, TypeScript, Express.js, PostgreSQL, TypeORM, RabbitMQ, Tailwind CSS, DaisyUI, D3.js, ApexCharts, NLP, OpenAI API, CI/CD, Git
    React.js Node.js TypeScript Express artificial intelligence

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Education

  • Graduate Engineer from CNAM
    Conservatoire National des Arts et Métiers
  • Master's Degree in Engineering, Computer Science, Systems and Networks
    Université de Strasbourg

Certifications

Skill set

Categories