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Youssef B.YB

Youssef B.

Senior Node.js & React Developer | AI • AWS • SaaS

€600/day
5 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Youssef

Building an application isn't the hardest part. The real challenge is designing a product that is performant, scalable, and capable of supporting a company's growth.

This vision guides each of my projects.

As a co-founder and CTO of a startup, I understand the real constraints of a product: deadlines, budget, performance, scaling, user experience, and business stakes. I develop solutions designed to last, not just to function.

I work across the entire value chain:
• SaaS platforms
• Web and mobile applications
• AWS cloud architectures
• Robust APIs
• Business process automation
• Artificial intelligence integration (OpenAI, Claude, OCR, AI Agents)
• Shopify and e-commerce solutions

I have designed platforms used daily by business teams, developed complete management systems, mobile applications, data analysis tools, large-scale processing pipelines, and AI solutions for automating high-value tasks.

My priority remains the same: to quickly deliver a reliable, maintainable product that is ready to evolve with your business.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Paris (up to 20km)

Experience

  • Beauty Sphere
    Co-founder & CTO
    E-COMMERCE
    January 2026 - Today (7 months)
    Paris, France
    As co-founder and CTO of Beauty Sphere, I design and develop digital solutions intended to automate, accelerate, and scale business operations.

    I built a complete ecosystem: internal SaaS platform, management dashboard, order, inventory, invoicing, and sales performance management, field mobile application, Shopify integrations, business automations, and decision-support tools.

    My goal: replace manual tasks, Excel files, and scattered processes with reliable, connected, and intelligent systems.

    I work on:
    • Workflow automation with n8n, APIs, and webhooks
    • AI integration with OpenAI / Claude to assist teams, generate content, analyze data, and accelerate decisions
    • Creation of business dashboards to track sales, performance, inventory, and operations
    • Development of robust APIs with Node.js, TypeScript, and NestJS
    • Creation of modern web interfaces with React
    • Development of mobile applications for field teams
    • Integration of Shopify, ERP, CRM, internal tools, and databases
    • AWS cloud deployment, Docker, CI/CD, and monitoring

    I don't just build features: I create systems that save time, reduce errors, automate operations, and provide teams with the right tools to sell, track, and decide faster.

    Main Stack: Node.js, TypeScript, NestJS, React, React Native, PostgreSQL, MySQL, AWS, Docker, Shopify, GraphQL, OpenAI, Claude, n8n, GitHub Actions.
    Node.js Nest JS Amazon Web Services (AWS) n8n Shopify
  • LVMH (AE)
    Typescript Fullstack Developer
    LUXURY GOODS
    October 2023 - December 2025 (2 years and 1 month)
    Paris, France
    Integration of Prismic with React and Next.js:
    - Using the Prismic API to dynamically fetch content in React applications powered by Next.js.
    Development of a highly reusable and customizable Design System:
    - Conducting in-depth analysis of design needs, in collaboration with design, development, and product teams.
    - Identifying recurring components and design patterns used across different applications.
    - Developing modular components, such as buttons, forms, cards, etc., based on solid design principles.
    UI/UX with Figma and React:
    - Close collaboration between design and development teams using Figma as a reference for implementing user interfaces with React.
    Next.js Figma Nest JS Scrum
  • MIGSO
    Backend/Cloud Developer
    CONSULTING AND AUDITS
    September 2022 - October 2023 (1 year and 2 months)
    Paris, France
    Successful migration of JavaScript code to TypeScript.
    Efficient implementation of the Instana solution for infrastructure and API monitoring.
    User management using Cognito.
    Optimization of Lambda layers using Webpack.
    Improvement of CloudFormation templates and acceleration of the deployment pipeline.
    JavaScript Amazon Web Services (AWS)

Reviews

5.0

Out of 5 ratings

StéphaneS

Stéphane

Nuward

Reviewed on 3/2/2021

Great! Everything went well again with Youssef! I recommend.
StéphaneS

Stéphane

Nuward

Reviewed on 1/26/2021

Very patient and calm from the start. I can only recommend Youssef who was very effective in understanding and implementing my project.

Recommendations

Samia K.SK
FU
Thomas TrinquéTT
Samia K. and 2 other people have recommended Youssef

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Education

  • Web and Mobile Project Manager
    ETNA
    2017
    L’objectif de la formation est d’acquérir les compétences nécessaires pour occuper le poste de responsable de projet web et mobile. L’acquisition de ces compétences a été évaluée par des examens, une soutenance de projet et un mémoire.

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