julien vonthron

Freelance web and mobile developer / tech lead

Salaire / Taux journalier

Antibes, France

Freelance

À distance uniquement

Expertises

TypescriptPHPSymfonyFlutterNextReactJavascriptDartDéveloppement BackendDéveloppement FrontendDéveloppement Fullstack

Langues

AnglaisFrançais

À propos

Liens

Expérience de travail

Senior web developer (typescript, firebase, firestore)

Lario - Marchand de biensFreelance

nov. 2023 - Présent

3 ans

Remote, Oregon 97458, États-Unis

For Lario, a real estate company, I developed an application to fetch upcoming auctions from various sources and display them in a React-admin backend. The application retrieves extensive details for each auction, including size, price, location, occupation status, assigned lawyer, and more. It utilizes third-party sources to gather the average cost per square meter in the area, helping to highlight the best deals. The interface allows clients to tag the auctions they wish to pursue and integrates with Google Calendar to set reminders for different steps, visit dates, and the auction itself. Additionally, it automates Trello card creation for follow-up tasks. The code is hosted on Firebase, utilizing authentication and Firestore as the database.

Senior web and mobile developer (fastapi, react-admin, flutter)

SAM MICOMEFreelance

juil. 2021 - Présent

5 ans 4 mois

Monaco, Monaco · Remote

Development of Tools for an Elevator Maintenance and Hardware Development Company CMA is an elevator maintenance company based in Monaco, while Micome is a branch of CMA specializing in developing specific hardware for elevator operation and maintenance. We created a comprehensive solution to manage the registration and remote provisioning of hardware cards: Developed an API in Python that serves as the backend for a hybrid app built in Flutter (Dart) and an admin panel using React (React-Admin). The API communicates via NATS messaging with an MQTT server, which interacts with the remote hardware. Implemented a Python asyncio application to monitor messages and alarms forwarded through the NATS network.

Senior frontend web developer (nextjs, react-admin)

LOGICSANTEFreelance

mars 2021 - Présent

5 ans 8 mois

06560 Valbonne, France

Development of a Website for Booking Medical Imaging Exams For a prominent group of medical imaging labs in France, known as groupe VIDI, a client of Logicsanté, I developed a website using Next.js (React.js). This platform enables customers to locate a nearby lab within the group that offers the medical exam they need and facilitates booking appointments. The website seamlessly integrates with the Easydoct API, the flagship product of Logicsanté. I also developed a backend with react-admin for specific stats and configuration. Website: https://rdv-vidi.fr

Senior web developer (Joomla! extensions development and maintenance)

Agence Digitale E-DevWebFreelance

déc. 2019 - Présent

6 ans 11 mois

Remote, Oregon 97458, États-Unis

Development of a custom CRM for a construction company We developed specific Joomla extensions to provide a custom CRM for a construction company: • track leads • manage opportunities, from first visits to quotes • manage projects tracking and invoicing of the client • integration of subcontractors companies, contacts, contracts... • integration with accounting saas (quickbooks, then pennylane)

Senior web developer (Joomla)

Portobello CommunicationFreelance

juil. 2018 - Présent

8 ans 4 mois

Remote, Oregon 97458, États-Unis

Joomla extension developments Development of specific custom extensions for Joomla

Senior web developer (Joomla! extensions development and maintenance)

ttime.beFreelance

juil. 2012 - Présent

14 ans 4 mois

Remote, Oregon 97458, États-Unis

Development of extensions and maintenance of Joomla websites For Ttime webagency, I take care of a Joomla! website: https://www.aquaeas.eu/

Senior web developer (Joomla! extensions development and maintenance)

Southside Technology LimitedFreelance

janv. 2009 - Présent

17 ans 10 mois

Remote, Oregon 97458, États-Unis

Maintenance of Joomla websites Update and maintenance of Joomla websites, development of custom extensions. One of the websites is https://www.sdftraining.org.uk/, a training and elearning platform

Freelance web and mobile developer / architect / tech lead

JLV SolutionsFreelance

juil. 2008 - Présent

18 ans 4 mois

Antibes, France

Web and mobile application developer * Backend developments in php, preferred frameworks include Symfony (api-platform) and Joomla * Backend developments in python, preferred frameworks include fastapi and flask * frontend developments in javacript, preferred frameworks/libraries include React (Nextjs), Vuejs. * backend/api developments in javascript/typescript, preferred frameworks/libraries include express and nestjs * Mobile developments in Flutter and React native

EficiensFreelance

févr. 2019 - Présent

7 ans 9 mois

Remote, Oregon 97458, États-Unis

Senior web developer (Symfony/api-platform, react-admin)

mars 2019 - Présent

7 ans 8 mois

Remote, Oregon 97458, États-Unis

Development of APIs and administration webapps for medical insurance subscription websites With symfony api-platform, I developed REST APIs and administration web applications (with react-admin) to provide the backend of nuxtjs applications (provided by another developer). The APIs communicates with external APIs services for payment, signature, emailing and DMS. Some of the websites are : • https://devis.mutcomplementaire.fr/ • https://devis-adhesion.lmde.fr/ • https://souscription.mcen.fr/ API-plaftorm (https://api-platform.com/) is API-first framework based on Symfony, providing automatic openapi/swagger documentation, and integration with react-admin (https://marmelab.com/react-admin/) for the admin interface. Together, they are a very reliable php stack to provide APIs in php

Senior web developer (Joomla/Symfony)

févr. 2019 - août 2023

4 ans 7 mois

Remote, Oregon 97458, États-Unis

Development and maintenance of a high traffic hybrid Joomla + Symfony website I took over the development of the website letrot.com, an high volume traffic website about horse racing. The CMS part was handled by Joomla with custom extensions, and the races results and statistics part was managed with symfony. Website : https://letrot.com

Senior web developer (express, react-admin, rabbitmq, mongodb)

ELECTRIC 55 CHARGINGFreelance

mai 2023 - janv. 2025

1 an 9 mois

Remote, Oregon 97458, États-Unis

In my role at Electric 55 Charging, I initially focused on developing an administration interface for a DynamoDB database using React Admin. As we progressed, we migrated our infrastructure from AWS DynamoDB/Lambda to a Kubernetes-managed cloud, transitioning our data storage to a MongoDB database and providing endpoints through a TypeScript Express API. What started as a simple badge management system evolved into a comprehensive solution for monitoring charging stations and managing invoicing. We also addded RabbitMQ integrations between the api and the CPO software. Additionally, we implemented an OCPI eMSP solution utilizing the same stack of Express, MongoDB, and React Admin.

Senior web developer (Joomla! extensions development and maintenance)

Oxygen | B2B ecommerceFreelance

nov. 2022 - déc. 2022

2 mois

Remote, Oregon 97458, États-Unis

This short term project was about migrating a Joomla website to a recent version for security reason, as the rewrite to another framework was in progress

Senior web developer (Joomla!)

Climate-KICFreelance

nov. 2020 - déc. 2021

1 an 2 mois

Remote, Oregon 97458, États-Unis

Development and maintenance of the digieduhack website, an EU funded hackathon about digital education Maintenance and developments of Joomla extensions based on redWEB aesir suite website: https://digieduhack.com/en/ The website goal was to present the event, and allow organisations to register their own event for the hackathon day. Participants could then register for those events, and upload their project. Finally, the winning projects were announced and presented on the website.

Mobile application developer (flutter)

LOGICSANTEFreelance

juil. 2020 - déc. 2020

6 mois

06560 Valbonne, France

Development of a Medical Imaging Results Mobile Application I had the opportunity to develop a mobile application using Flutter for France Imagerie Territoires, a prominent network of medical imaging labs in France and a client of Logicsanté. This application empowers patients by providing easy access to their exam results directly on their mobile devices. The solution integrates seamlessly with Easydoct API, Logicsanté's flagship product, ensuring reliable data retrieval and a user-friendly experience. This project not only enhances patient engagement but also streamlines the communication of medical results.

Senior Web Developer (php / javascript / mysql)

redWEB ApSFreelance

juin 2009 - juil. 2020

11 ans 2 mois

Remote, Oregon 97458, États-Unis

Member of the international team of developers, we were in charge of developing and supporting Joomla extensions. In particular, i worked on: - redFORM: a custom form manager for Joomla, with integrated payments - redEVENT: an event booking system for Joomla, with integrated payments - redMEMBER: a user manager for Joomla - Aesir: an advanced CCK component for Joomla And for our clients we developed customizations of these extensions as well as other specific extensions

Test and validation Baseband GSM chipset

NXP via Elsys Design

déc. 2006 - juil. 2008

1 an 8 mois

Run L1 radio test on NXP baseband GSM chipset. Setup of an automated test plateform via National Instruments Labview

Ingénieur télécom

Elsys Design

oct. 2006 - mai 2008

1 an 8 mois

Sophia antipolis

I was working as a contractor for NXP (see experience at NXP)

Integration engineer UMTS NodeB

Nortel

mai 2002 - déc. 2006

4 ans 8 mois

Uu / Iub interface Test and validation of Nortel UMTS NodeB (R99, R5 hsdpa, R6 edch). Setup of an automated test plateform via National Instruments Labview

Ingenieur télécom

ISIS Logiciels & Systemes

mai 2002 - juil. 2006

4 ans 3 mois

I was working as a contractor for Nortel Network (see experience at Nortel Networks...)


Formation

IMT Atlantique

Master's degree - Télécom Bretagne

1998 - 2002

4 ans 2 mois

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