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Johann BâteauJB

Johann Bâteau

Fullstack Angular / Node.js - .NET Developer

€510/day
16 projects
Le Mans, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Johann

Interested in web development, I joined school 42 in 2015 to specialize in this field.

My first significant experience as a Fullstack JS developer was within the company Neo9, where I collaborated, for 18 months, on projects for clients such as Aon, Galian and Air Liquide.

I then launched my own self-employment business in 2019, before creating an EURL in 2023.
During this period, I carried out a one-year mission for Air Liquide as a Node.js developer, then a Fullstack Angular / .Net developer mission of more than three years for the client Engie.

These experiences have allowed me to strengthen my technical expertise by exploring new technologies and adapting to various work environments.
In parallel with my missions, I also worked on personal projects, which allowed me to deepen my mastery of Angular application development.

Services offered:
  • Extranet
  • Showcase site
  • E-commerce site
  • Back office
  • API
  • Optimization / Audit
  • English

    Fluent

  • French

    Native or bilingual

  • Italian

    Basic

Can work on-site
Le Mans (up to 50km), Paris (up to 50km), Nantes (up to 50km), Tours (up to 50km), Angers (up to 50km)

Experience

  • ENGIE - GEMS - FR - Engie Global Markets
    Fullstack Angular / .Net Developer
    ENERGY AND UTILITIES
    April 2021 - October 2024 (3 years and 6 months)
    Paris, France
    Within a team of ten people mainly dedicated to the creation of .Net services allowing the consultation and execution of orders on the energy markets, my role consisted of creating and maintaining Angular applications intended for internal use.

    My responsibilities have been varied, ranging from the design of applications, including architectural and design choices, to final tests and presentations to clients. I also took charge of creating tickets, implementing the Kanban method for the team, as well as leading daily meetings.

    During this mission, I had the opportunity to familiarize myself with the .Net, C#, Microsoft Azure environments, and improve my skills with experienced developers, in a demanding environment in terms of performance.

    The main developments carried out include:

    • Creation and maintenance of an application allowing to consult energy market data, including real-time prices, history, as well as tools for creating alerts and reports.
    • Development and maintenance of a monitoring application for monitoring our servers, and executing specific operations.
    • Creation of an application facilitating the development of rules aimed at limiting operations on the market.
    • Design and maintenance of an Angular library used in the applications mentioned above.
    • Implementation of automated tests to validate all developments.
    • Development and maintenance of several .Net APIs, using HTTP and WebSocket protocols, as well as shared libraries.
    Angular Material .NET C# Microsoft Azure Azure DevOps Kanban QA testing Agile method Angular 14 Amazon Web Services Playwright
  • Air Liquide Santé International
    Back End Node.js Developer
    ENERGY AND UTILITIES
    August 2019 - September 2020 (1 year and 2 months)
    Paris, France
    As part of a project involving around thirty people divided into several teams, the objective was to facilitate the understanding and access to medical data of patients with diabetes and sleep apnea.

    I set up a Node.js API allowing the creation and consultation of specific programs and questionnaires intended for patients, and I contributed to the development and maintenance of a React Native application using this data.

    The main tasks carried out include:

    • Design of a Node.js API.
    • Development of features on the frontend part.
    • Participation in the creation of automated tests for the application and the API.
    • Involvement in daily meetings, ticket creation, and task estimation.
    • Participation in quarterly meetings with all teams, aimed at defining and synchronizing development choices.
    Node.js Amazon Web Services JavaScript Jenkins Typescript Cucumber Atlassian JIRA MongoDB Scrum Scaled Agile QA testing Express
  • Neo9 SAS
    Fullstack Angular / Node.js Developer
    DIGITAL AND IT
    August 2017 - February 2019 (1 year and 7 months)
    Paris, France
    Within the SSII Neo9, I contributed to the development of web applications for companies such as Aon, Galian and Air Liquide.

    During this experience, I strengthened my skills in web application development, and I was able to discover Angular, Express and Spring Boot.

    The tasks carried out during this period include:

    • Development and maintenance of insurance paths for Aon and Galian.
    • Maintenance and correction of problems on Spring and Express APIs.
    • Development and maintenance of an internal application at Air Liquide for the management of health data.
    • Participation in presentations to clients.

    http://www.neo9.fr/
    Angular Node.js MongoDB Typescript JavaScript AngularJS Java Spring Spring boot Scrum Trello Atlassian JIRA Express

Reviews

5.0

Out of 2 ratings

MargueriteM

Marguerite

ENGIE Global Energy Markets

Reviewed on 6/2/2021

AD

Account deleted

Reviewed on 12/4/2019

Recommendations

Helmi GnichiHG
Thaljani AhmedTA
Helmi Gnichi and 1 other person have recommended Johann

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Education

  • Developer
    42
    Programmation Système Web Algorithme

Skill set

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