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Thomas SellemTS

Thomas Sellem

Full-stack, Web & Mobile Developer

€250/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Thomas

26-year-old Franco-British full-stack developer, holder of a Master's degree in Full Stack Application Design and Development. With significant experience in web, mobile, and B2B/B2C SaaS development, I combine advanced technical skills with attentive listening and the ability to manage a project from start to finish.
Persistent and curious, I notably designed and published a mobile application ranked #1 in France in its segment, exceeding 2000 active users.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km), Valence (up to 10km), Angers (up to 10km)

Experience

  • Thales
    Freelance
    HUMAN RESOURCES
    October 2025 - November 2025 (1 month)
    Valence, France
    - Creation of WordPress websites Technical architecture
    - Creation of a custom theme from scratch
    - Website deployment
    CMS Customization Wordpress WordPress Website Creation
  • Thrive
    Entrepreneurial Project
    RETAIL (SMALL BUSINESS)
    May 2024 - September 2025 (1 year and 4 months)
    Angers, France
    • Writing of specifications Technical architecture
    • Development of a REST API (NodeJS).
    • Implementation of CI/CD on GitHub
    • Development of the native Android & iOS application (React Native + Expo)
    • Publication on the App Store and Play Store 1st application in France (+ 2000 users)
    React Native Node.js Express External API Integration CI/CD Management
  • Monarch Studio
    Full-stack Developer
    January 2022 - January 2024 (2 years)
    Angers, France
    • Development of REST APIs (NodeJS).
    • Development of web applications under NuxtJS 2 & 3.
    • Development of B2B - B2C SAAS Appointment booking (E-Monsite), inventory management - team management (Horneo), Photo library (Assemblée Nationale) and others
    • Reverse engineering on APIs Maintenance of existing sites (Patching, new features)
    • Multi-site collaboration in agile mode
    Node.js External API Integration Express MongoDB Nuxt.js

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Education

  • Designer and Developer of Applications
    ESPL
    2022
    Concepteur et réalisateur d'application
  • BTS Digital Systems
    BRIFFAUT
    2019
    BTS Sytème Numérique

Certifications

Skill set

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