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Jérôme L.JL

Jérôme L.

Full-Stack Developer Vue / React / .NET / Node

€610/day
4 projects
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jérôme

Full Stack Developer with **over 15 years of experience**, I have contributed to major projects such as Betclic, Allociné, and AVendreALouer, as well as web and intranet applications for Société Générale and Action Logement.

Passionate about **custom solutions**, I enjoy tackling specific technical challenges: custom visuals for Power BI, extensions for Azure DevOps, Node.js data processing services.

Skills

  • Back-End**: **.NET(Web APIs, ASP.NET MVC), **growing expertise in Node.js**.
  • Front-End**: **ReactandVue.js(TypeScript), with a strong interest in Angular, Astro, and Svelte.
  • **Cloud**: Primarily **Azure**, but also **AWS**.
Curious and constantly learning, I enjoy exploringnew front-end technologiesand refining my skills.

In 2015, I traveled for30 monthsthrough **18 countries**, including **15 months in Japan**, where I discovered the culture, practiced Aikido, and studied Japanese.

Today, as anentrepreneur-salariéand partner atInsiders.coop**, a **cooperative promoting human values**, I want to bring more **meaningto my work. My goal:to put my skills to the service of impactful projectsin thesocial, ecological, and Social and Solidarity Economy (SSE)sectors.

I believe in technological solutions that promotemobility and flexibility**, paving the way for **international and remote collaborations**, while rethinking our work methods for a better **work-life balanceand reduced ecological impact.
  • English

    Native or bilingual

  • German

    Basic

  • Japanese

    Basic

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

Experience

  • N/A
    Full-Stack Developer | React, Python, Azure
    February 2025 - Today (1 year and 4 months)
    Development of a Power BI reporting portal for capturing, transcribing, and analyzing audio notes by GenAI agents.
    Microsoft Power BI React.js Python Next.js FastAPI
  • CNH Industrial
    Development of custom visual for Power BI
    AVIATION AND AEROSPACE
    January 2025 - January 2025 (1 month)
    Maintenance and evolution of a custom visual for Power BI.
    • API and project dependency upgrades.
    • Added an option to limit the number of entered terms.
    • Added a cross-page synchronization feature.
    • Improved UI/UX for more intuitive use and better ecosystem consistency.
    • Resolved an anomaly concerning the entry of search terms containing separator characters.
    Typescript Microsoft Power BI d3.js MS Power BI Custom Visuals SDK
  • AC Nielsen FR
    Full Stack Developer
    September 2024 - November 2024 (2 months)
    Participation in the development of features and maintenance of the Intranet Quality Platform application for Data analysts.
    • Implemented a request pool with a backoff mechanism to time Notion API calls and manage imposed limits.
    • Added a ticket prioritization mechanism.
    React.js Typescript Node.js Fastify Zod Notion MongoDB Amazon Web Services MUI Material UI

Reviews

5.0

Out of 1 rating

D

David

AC Nielsen FR

Reviewed on 7/24/2024

For FoxIntelligence by NielsenIQ, Jérôme was responsible for rewriting a Scala service, with the goal of translating it into TypeScript while maintaining identical functionality. The engagement with Jérôme went very well. Jérôme quickly understood the project's objectives and rapidly delivered the initial lines of code, which then allowed for iteration. His code is of very high quality, and his experience allowed us to gain perspective on several aspects of our stack. Jérôme delivered on time, and communication with him was always very easy and pleasant. He adapted to our processes and communicated autonomously with all necessary stakeholders. We extended the contract to work with him on other services.

Recommendations

Numidia C.NC
Matthieu RancinanMR
Charles-Henri SaugetCS
+1
Numidia C. and 3 other people have recommended Jérôme

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Education

  • Master in Distributed Systems and Applications
    Université Paris 6 Pierre et Marie Curie
    2005
  • Master's degree in Systems and Networks
    Université Paris 6 Pierre et Marie Curie
    2004

Skill set

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