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Aymeric GuillienAG

Aymeric Guillien

JavaScript Developer

€478/day
Toulouse, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Aymeric

I design and develop web applications with a strong focus on responsive interfaces, real-time capabilities, and reliability. I have extensive experience with WebRTC video tools, real-time dashboards (WebSockets), interactive maps (MapBox), and more broadly, environments requiring continuous data management and fluid user experiences.

I am comfortable taking a project from the design phase, establishing a clean architecture, structuring state management, and delivering maintainable features. I enjoy optimizing performance, simplifying complexity, and documenting where necessary. React/TypeScript remains my primary domain, but I also code the backend (Node.js, APIs, microservices) and automate the DevOps pipeline (CI/CD, Docker, cloud deployment).

I also work on redesigns, migrations, codebase stabilization, or creating reusable UI components. I am accustomed to working with distributed teams and iterating quickly without sacrificing quality.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Toulouse (up to 50km), Rennes (up to 50km), Lyon (up to 50km), Brest (up to 50km), Bordeaux (up to 50km)

Experience

  • Amplement (Groupe Cirpack)
    Full-Stack Developer
    February 2023 - February 2025 (2 years)
    Paris, France
    • Development from scratch of an instant video call tool (WebRTC, WebSocket, React, TypeScript, Firebase, Node).
    • WebGL and facial recognition integration for real-time background modification during calls.
    • Complex front-end design: state management, performance optimization, responsive UX.
    • Setup and maintenance of CI/CD pipelines, unit/functional test coverage.
    • Agile environment, multi-team collaboration (France/International).
    WebRTC WebGL React.js Node.js Typescript
  • VideoLabs (projet VLC)
    Lead Front-end Developer
    November 2020 - February 2023 (2 years and 3 months)
    Paris, France
    • Development of VLC web interfaces (Angular, Vue, Svelte) integrated into the video engine.
    • Backend in Node.js and Golang, integration with distributed services.
    • Optimization of video performance and real-time communication.
    • Participation in application design and delivery.
    • CI/CD automation, Docker/Kubernetes integration.
    Angular Vue.js C++ GO Docker
  • Juloa & Météo France
    Web & Mobile Developer
    June 2019 - November 2020 (1 year and 5 months)
    Toulouse, France
    • Design and development from scratch to delivery of several applications.
    • Advanced mapping tool for Météo France (React + MapBox).
    • Mobile applications in React Native (Expo): booking sunbeds and orders for a beach restaurant.
    • Development of an IoT API in Node.js: retrieving data from a physical battery via Modbus and exposing it as an API for a mobile application.
    • Stack: React, React Native, Angular Ionic, Node.js, TypeScript.
    • Testing (Jest, Enzyme) and continuous integration (GitHub Actions).
    React.js React Native Node.js Typescript OpenLayers

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Education

  • Secure Infrastructure Developer (Bac +3/4)
    Jedha Cybersecurity
  • Software Developer (Bac+2)
    O'clock Training
    2018

Skill set

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