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Romain Flori-CantrelleRF

Romain Flori-Cantrelle

Fullstack Developer

€300/day
Paris, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Romain

Full Stack Developer .NET & React | Solution & Delivery Expert | Fluent English
Transform your business needs into robust tools, from the database to the user interface.

Do you need a developer who doesn't just write lines of code, but understands your challenges? My profile is tailored for missions where autonomy and rigor are non-negotiable.

Your technical partner for your critical projects
Complete Autonomy (Full Stack): Capable of managing your project from start to finish. Whether for a solid backend architecture in .NET (C#) or a React/Vue.js interface

Field Experience vs. Theory: With over 3 years of full immersion (permanent contracts, apprenticeships, internships), I have acquired technical maturity. I master rigorous development cycles and am not afraid of production deployments.

Business & Industry Expertise: Stripe for your payments, SEO for your visibility, billing systems...

English Speaker (NYC Experience): Do you work internationally? My experience in New York allows me to manage your English-speaking clients or partners and document your projects in English without any barriers.

Looking forward to working with you!
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 30km), Marseille (up to 50km)

Experience

  • EDL
    Full Stack .NET Developer
    SOFTWARE PUBLISHING
    February 2025 - November 2025 (9 months)
    Marseille, France
    Within an R&D team of 30+ developers, I joined the Franco-German unit to lead the development of key modules for a SaaS solution.

    I used the .NET environment with C# for the backend and Vue.js for the frontend.

    Communication with accounting experts to better understand business needs.

    Developing the accounting part of the application:

    I developed an analytical accounting feature that allows radiologists working in multiple hospitals to automatically allocate their services, improving financial tracking and multi-establishment management.

    Dashboards: Revenue by hospital, by radiologist, by period.

    Payment and settlement tracking: Management of paid/unpaid invoices.

    Alerts or reports on late payments.

    Creation of slips, grouping of slips, deletion of slips and their status: sent, paid, pending.

    I participated in the development of the French billing part of the application, adding features for managing services according to the CCAM nomenclature, automatic calculation of reimbursements, generation of compliant invoices, payment tracking, and reporting, while also fixing bugs and optimizing the billing workflow, which allowed me to advance in my skills.

    Added a progress indicator in certain parts of the project (progress bar with status message, as well as an estimated time calculated based on the number of files and download speed).

    Handling and fixing application bugs, including urgent incidents reported by clients in production, with rapid diagnosis and resolution.

    I integrated an LLM API (ChatGPT Mini) to automatically analyze CCM service documents, allowing for validation and duplicate detection, thereby improving billing reliability and efficiency.
    C# Vue.js .NET PostgreSQL
  • Loopsider
    JS Full Stack Developer
    SOFTWARE PUBLISHING
    March 2024 - September 2024 (6 months)
    Paris, France
    Development of theSherp.aisolution used by BFMTV, TF1, which centralizes data from various social networks like Instagram, etc., all within a SaaS solution. The added value, in addition to data centralization, is an AI that automatically classifies videos into categories, etc.

    It is also possible to compare views, impressions, number of videos, and much more.

    Learning new front-end and back-end technologies used by the company on the job.
    Achieving good progress despite working remotely 4 days out of 5 on average.
    During this internship, I handled numerous tickets, including adding important features for the back office and managing data retrieval to display it on the main dashboard of the Sherp.ai application.

    This application aggregates data from all social networks for in-depth analysis.
    In addition to these tasks, I also developed the official showcase website for Loopsider, making a significant contribution to the company's online visibility.

    I also quickly developed the showcase website for the solution developed at Loopsider (Sherp.AI)
    SQL React.js JavaScript Node.js Bootstrap
  • Polycea
    Back-end Developer
    SOFTWARE PUBLISHING
    September 2023 - April 2024 (7 months)
    Paris, France

    Project for La Française des Jeux


    As a backend developer at Polyconseil in Paris, I had the opportunity to contribute to a major project for FDJ, collaborating with a team of over 15 backend developers. During this internship, I worked both on-site and remotely, with approximately two out of three days spent telecommuting.

    We adopted an agile work methodology, including daily meetings (like the daily stand-up) to ensure good coordination. My work primarily focused on backend development in TypeScript.

    Learning TypeScript, which was new to me, adapting to the group's communication and work methods (Agile).

    During my six-month internship (three days a week), I had the opportunity to handle several tickets:

    I created endpoints to facilitate communication between the mobile application and the back office, enabling data saving in the database.

    I also performed unit tests for each ticket using Jest, which was also new to me.

    I also developed a homonym control system to prevent identity theft when creating new accounts.

    Modified the software's functional diagram after adding my modifications.

    Working in Agile methodology: respecting deadlines, participating in sprints, daily meetings, and team code reviews.
    Typescript Node.js Postman

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