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Amandine TournayAT

Amandine Tournay

Full-stack Web & Mobile Multiplatform Developer

€520/day
Chartres, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Amandine

Full-Stack Developer & Tech Lead with 4 years of experience on critical SaaS platforms. I develop with Java/Kotlin, React/Next.js, TypeScript, Node.js/NestJS/Fastify/Express, Python, PostgreSQL, and Docker. My background combines health (Medic Global, Paladin) and electric mobility (Stations-e, Zetra), currently.

At Medic Global, I led all technical aspects for a team of 4 developers while participating in backend development (Node.js, TypeScript, Fastify), CI/CD on GitLab, and quality through code reviews. I set up Docker environments and documented architectures. At Paladin, I developed multi-entity features from a single account for a B2B health platform with NestJS, and integrated complex medical APIs (ICD-11).

I led the complete redesign of Stations-e's electric mobility platform: re-creation of the client portal and creation of the fleet management portal with Next.js, TypeScript, Tailwind CSS, Quarkus/Kotlin, while keeping the existing core Java OSGi APIs. I also developed a Python API for QualiCharge (national charging infrastructure) at Zetra.

My strength lies in my ability to technically challenge with kindness, facilitate knowledge transfer, and upskill teams. I maintain constant technological watch (AI tools, new frameworks) and bring a 360° vision to projects. Rigorous, autonomous, and proactive, I am passionate about reducing technical debt and achieving operational excellence.

I am looking for stimulating missions combining development, technical leadership, and business impact. My fluent English (C1) and international collaboration experience (University of Wisconsin-Madison) allow me to easily integrate into international teams.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • German

    Basic

Can work on-site
Chartres (up to 50km), Paris (up to 10km), Versailles (up to 10km), Mazamet (up to 20km), Le Mans (up to 20km)

Experience

  • Paladin
    Senior Fullstack Software Engineer
    MEDICAL
    January 2026 - April 2026 (3 months)
    Paris, France
    🏥 B2B SaaS Platform – Health & Workplace Prevention

    → Full-stack development of complex features (React, Vite, TanStack Query, oRPC, NestJS, Prisma, PostgreSQL)
    → Design and implementation of a multi-entity architecture with fine-grained access control (CASL) and data migration
    → Integration of the ICD-11 API (WHO) for international medical classification
    → Implementation of local persistence with Dexie.js / IndexedDB and an automatic form backup system
    → Development of an international phone number validation system (libphonenumber-js)
    → Active contribution to code quality: refactoring, reduction of ESLint warnings, reusable components
    → Use of AI tools (Cursor, Claude Code) in the daily workflow: task planning, debugging, code review, and comparative tool evaluation
    Full-stack Development PostgreSQL API React.js NestJs
  • Zetra
    Software Engineer
    TRANSPORTATION
    May 2025 - August 2025 (3 months)
    Paris, France
    → Facilitate knowledge transfer and improve technical vocabulary within the development team
    → Develop an API to send necessary data to QualiCharge (French national open-data for electric vehicles) using Python with FastAPI
    → Participation in the practical migration of charging station management software to a new platform
    Python FastAPI API Hasura PostgreSQL
  • Stations-e
    Software Engineer
    AUTOMOBILE
    September 2023 - April 2025 (1 year and 7 months)
    Boussy-Saint-Antoine, France
    🚗 Web & Mobile Ecosystem – Electric Mobility (Showcase site, client portal, fleet management)

    → Complete overhaul of the web client section:
    → Integration of the institutional site with the Strapi CMS, NextJS, and SASS
    Recreation of the Client Portal with NextJS, TypeScript & Sass (Front, Atomic Design), Quarkus & Kotlin (Back for front), Java API (OSGi)
    → Creation of the Vehicle Fleet Manager Portal:
    - Front with NextJS, Tailwind CSS, TypeScript & Atomic Design
    - Back-for-front with Quarkus and Kotlin
    - Back with Java (OSGi)
    → Fixing Expo configuration, particularly related to iOS for the React Native mobile application
    → Bug fixing
    → CI/CD on GitHub Actions and Docker
    Software Architecture Full-stack Development Mobile Application PostgreSQL Kotlin

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Education

  • Engineer from ENSIIE, Computer Science specialization, Computer Science
    ENSIIE - National School of Computer Science for Industry and Business
    2022
    École d'ingénieurs publique généraliste orientée Informatique, Mathématique et Management associée à l'Institut Mines-Télécom et l'Université Paris-Saclay
  • Professional Bachelor's Degree in Computer Science Professions: Software Design, Development, and Testing
    IUT de Paris - Rives de Seine
    2019
    Parcours : Génie logiciel, système d’information et IoT Anciennement IUT Paris Descartes jusqu'en 2022

Certifications

  • Linguaskill (formerly BULATS)
    Cambridge University Press & Assessment English
    2021
    English C1

Skill set

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