You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Julien ValliniJV

Julien Vallini

✅ Fullstack CTO ᐧ On Demand ᐧ Startup ᐧ ex-Theodo

€790/day
4 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Julien

Hello, thank you for your interest in my profile.

I have been developing websites and web and mobile applications for my clients and myself out of passion for almost 10 years. In the meantime, I obtained a degree in engineering from Centrale, which gave me the rigor and professionalism necessary to excel in the realization of digital projects with and for my clients.

In addition to developing applications in accordance with web standards, I advise my clients in strategic areas such as SEO, user experience or technical choices to support future load increases.

Inspired by the agile SCRUM methodology, it is essential for me to work closely with my clients. I ensure that each stage of development corresponds perfectly to your vision. It is essential for me to be 100% transparent in my work throughout the development.

Main projects:
- 🏡 weturn.eco - Saas and internal tools in the field of textile reuse
- 🎶 thisisblindtest.com - Interactive blind test game using voice recognition
- 👷 quotatis.fr — Platform for connecting craftsmen and individuals
- 👠 24s.com — E-commerce site belonging to the LVMH group

I have been working in Javascript fullstack for several years now. I have acquired expertise on React and its ecosystem (Redux, Mobx, Redux-saga, styled-components, react-router v4, mobx etc.) and on Nodejs (in particular on the feathers.js framework).

I am also one of the certified freelancers with whom the Theodo agency works.

Contact me for any mission:
- Web and mobile development
- Technical audit / Code audit
- Technical architecture
- Strengthening/Structuring of development team
- React/react-native/nodejs expertise

I respond very quickly 👋
—You can also add me to your favorites ⭐

Have a good day
  • English

    Fluent

  • French

    Native or bilingual

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

Experience

  • Amusoire
    Early stage CTO
    ENTERTAINMENT AND LEISURE
    May 2021 - January 2022 (9 months)
    Paris, France
    ➡️ https://www.thisisblindtest.com/

    ThisisBlindTest is a game in which each player must guess the name of a song as quickly as possible. As soon as a player has the answer, he pronounces it into his phone and the game gives him the point thanks to a voice recognition system. A screen allows you to see the entire game and an ipad allows you to move on to the next song.

    I created all the code for Amusoire that makes the ThisisBlindTest game work:
    - Development of mobile, ipad and desktop interfaces from mockups provided by the client
    - Synchronized animations and sound effects for an immersive gaming experience
    - Playlist selection algorithm drawing from a directory of 10,000 songs
    - Bonus/penalty system to penalize winners and give a boost to losers
    - Room system so that a server can manage several games in parallel
    - Implementation of an Ansible provisioning to be able to configure a new server in a completely automated way

    Technos:
    - React
    - Node.js (via the feathersjs framework)
    - Socket.io
    - React-native
    - Ansible
    React.js Socket.io Node.js FeathersJS
  • Horeme.com
    CTO / Technical Management
    HOSPITALITY
    December 2019 - June 2020 (6 months)
    Development of a SAAS platform allowing hotel managers to manage their reservations.

    Complete system including a complex booking process (management of a change of date, real-time proposal/response system with the establishment, automatic expiration of reservations, sending personalized emails at each stage) as well as a complete management console for each establishment allowing the configuration of rooms, options, prices etc.

    Technologies used: nextjs, algolia, heroku, react-admin
    JavaScript Node.js
  • Booxyz.com V2
    Technical Direction
    E-COMMERCE
    September 2019 - Today (6 years and 10 months)
    Paris, France
    From scratch and solo redesign of a platform allowing the ordering and tracking of deliveries in Île de France.

    The site includes a payment system, automated notifications before and during deliveries, a smooth ordering process and an administration interface for tracking deliveries.

    Technologies used:
    React, Nextjs, Material.ui, Feathers.js, Stripe, Postgres

    Services used:
    Heroku
    technical direction React.js Heroku Next.js

Reviews

5.0

Out of 4 ratings

AD

Account deleted

Reviewed on 5/3/2019

Efficient and friendly. Very customer oriented.
AD

Account deleted

Reviewed on 4/29/2019

I expected a lot from Julien's service, and I got more than expected. Very professional, autonomous and fast.

Recommendations

FU
FU
Benoît d'OncieuBD
+2
Former user and 4 other people have recommended Julien

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Engineering degree — Centralien
    Ecole Centrale de Lille
    2015
    - Spécialité Analyse de données - Cours de M2 Mathématiques appliquées suivis en partenariat avec l'université Lille 1

Skill set

Categories