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Logan ThenardLT

Logan Thenard

React Native – iOS & Android Mobile App

€200/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Logan

Mobile and web full-stack developer with over 6 years of experience, I help startups and companies create high-performing applications, from idea to production.

I work on complex projects in various fields (health, energy, sports, mobility, services), with one goal: to deliver reliable, scalable, and user-friendly products.

What I can offer you:

Mobile
- iOS and Android app development (React Native, Swift)
- App store publication and maintenance
- Performance and stability optimization

Web & Front-end
- Modern web applications (React.js)
- Polished and responsive UX/UI

Back-end
- Robust APIs (Node.js, Python)
- Data management, security, and access
- Scalable architecture

Integrations
- External APIs
- Real-time (chat, notifications, synchronization)

Rigorous, autonomous, and results-oriented, I adapt quickly to the needs and constraints of each project.

Available to discuss your project.
  • French

    Native or bilingual

  • English

    Native or bilingual

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

Experience

  • DIAMPARK
    Health App – Parkinson's Patient Monitoring
    MEDICAL
    September 2022 - October 2025 (3 years and 1 month)
    Development of a health mobile application used by over 500 active users.

    Design and development of a smart pill dispenser, with medication intake and treatment tracking.

    Implementation of monitoring features for motor and non-motor symptoms for Parkinson's disease patients.

    Integration of therapeutic exercises (tremors, motor rehabilitation, joint mobility, speech therapy) into the application.

    Stack: React Native, Node.js, Python

    Application in production, used in real-world conditions.
    JavaScript Node.js Python React.js mobile-app-deployment
  • STUDIO QUATRE
    Full-stack Developer
    October 2021 - Today (4 years and 8 months)
    Development of a complete solution for booking sports sessions in companies.

    Design of a mobile and web application with a fluid and intuitive booking interface.

    Implementation of a real-time chat system to facilitate user communication.

    Development of an intelligent queue system to optimize booking management.

    Improvement of the user experience with a particular focus on performance and fluidity.

    Stack: React Native, React.js, Node.js, Swift, Kotlin

    Solution used in a real context with active users.
    Node.js React Native React.js Express Next.js
  • GreenMetrics Tech
    Energy Monitoring App with Real-time Dashboard
    August 2022 - August 2023 (1 year)
    Development of a web application for real-time monitoring and analysis of energy consumption for SMEs.

    Implementation of an interactive dashboard with dynamic charts and data visualization.

    Development of a personalized alert and automated recommendation system to optimize consumption.

    Integration of external APIs for data collection from IoT sensors.

    Performance optimization to ensure a smooth experience even with large volumes of data.

    Stack: React Native, Python, External APIs

    Solution used to aid decision-making and reduce energy costs.
    external-api-integration performance-optimization Python React Native Swift

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