You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Jean-Paul TossouJT

Jean-Paul Tossou

Supermalter

JAVA Developer | Mobile-Web | Data Engineer | IoT

€555/day
10 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Jean-Paul

Experienced developer and entrepreneur, I am passionate about two key areas: **software engineering and data engineering**. Every day, I hone my skills through three avenues: **business consulting**, **developing innovative solutions, and training**.

I work both in companies and in training structures (universities, training centers, AFPA, etc.) to share my expertise.

My expertise
🔹Web Development
  • Design and development of web applications based on a microservices architecture
  • Mastery of theSpringframework (Core, Boot, MVC, Security, Data, Batch), Hibernate
  • Development withAngularandReact
  • Relational and NoSQL databases:MySQL, PostgreSQL, Oracle, SQLServer, MongoDB, Firebase, etc.
  • Continuous integration:Jenkins, SonarQube, Docker, Kubernetes
  • Expertise inClean Architectureand good development practices

🔹Mobile Development

*Nativeandcross-platformapplications
  • Languages and frameworks:Java/Kotlin (Android), Swift (iOS), Dart/Flutter

🔹 Data Engineering

*Certified Google Professional Data Engineer (GCP)
  • Expertise in **ETL / ELT**: Talend (Data Integration, Data Quality), Pentaho
*Business Intelligencetools: Power BI, Tableau, Looker
  • Big Data Technologies:Hadoop, Spark, Kafka

📩 Contact me to discuss your project and bring your ideas to life!
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Le Mans (up to 10km), Toulouse (up to 10km), Bordeaux (up to 10km)

Experience

  • Ministère de l'intérieur - ST(SI)²
    Java/Kotlin Developer
    PUBLIC SECTOR
    December 2022 - August 2024 (1 year and 9 months)
    Issy-les-Moulineaux, France
    Several missions. Among others:

    - Design and development of a mobile application for the transport police, used by thousands of officers in various field activities every day.
    (Kotlin, Jetpack compose, clean archi, Room, Git, Jira, Kanban, etc.)

    - Development of several modules for the procedure writing software for the police and justice system.
    (Java, Spring, Javafx, clean archi, Oracle, Scality, etc.)
    Java Clean Architecture Clean Code Kotlin Spring Jetpack Compose Software Engineering JavaFX Oracle Database NoSQL
  • Thales
    Embedded Systems Development Trainer
    AVIATION AND AEROSPACE
    February 2023 - April 2023 (2 months)
    Nantes, France
    POEI - Training in Embedded Systems Development for Thales employees organized by ALTEN.

    Learner Level: Engineer.
    C Embedded Systems Embedded Linux Python (programming language) RTOS
  • MECADAQ Group
    Data Engineer
    AVIATION AND AEROSPACE
    April 2021 - August 2022 (1 year and 5 months)
    Tarnos, France
    Development of the overall architecture of the decision-making system based on requirements and specifications,
    Implementation of validated solutions (data quality, ETL, Data Warehouse, Cubes),
    Development, testing, and documentation of various KPIs for senior management
    Data Science Data Visualization Talend SQL Server SSIS Microsoft Power BI Microsoft Excel ETL Data Engineer Oracle Database Data Warehouse Google Cloud Platform (GCP) Microsoft Power BI Data Governance Data Quality Java Python (programming language)

Reviews

5.0

Out of 3 ratings

A

Alan

Ministère de l'intérieur - ANFSI

Several months project

-

Reviewed on 6/5/2025

Experienced developer who quickly familiarized himself with the professional environment to offer informed technical advice. His professional and technical skills make him an important asset for the project's realization.
N

Nicolas

Ministère de l'intérieur - ST(SI)²

Reviewed on 6/17/2024

Serious, quality work, useful advice, respects technical recommendations, listens to the client.

Recommendations

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

  • International master in computer science option Industry 4.0
    University of Pau and Pays de l'Adour
    2021
    Architecture système, IoT, Data science, Intelligence artificielle, Business intelligence, Business Analyse, Cloud computing, ...
  • Computer Systems, Applied Software Engineering for Industrial and Service Logistics (SIGLIS)
    University of Pau and Pays de l'Adour
    2020

Certifications

Skill set

Categories