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Julien JacquelinetJJ

Julien Jacquelinet

Engineer - Fullstack Developer, Trainer & Geomatics

€650/day
1 project
Rennes, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

Passionate about open data, geomatics, and free tools, I design web applications in backend or full-stack.
With over 10 years of experience, I combine Python/Django backend, modern frontend (Javascript, Stimulus, Turbo), and advanced geospatial processing (PostGIS, GeoPandas).
I can support you on your projects from design to deployment, including development.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Rennes (up to 50km), Paris (up to 50km), Aix-en-Provence (up to 20km)

Experience

  • Beta Gouv - DINUM
    Fullstack Developer
    PUBLIC SECTOR
    March 2024 - September 2024 (6 months)
    Paris, France
    In the @beta.gouv universe, adding features to the DiaLog website "beta.gouv.fr/startups/dialogue.html", within a team of 7 people.

    The objective of DiaLog is to digitize circulation permits, such as temporary traffic restrictions for works, to visualize them on a map, and to transmit them to navigation assistance software like Waze.

    Frontend side: Twig, JavaScript, DSFR (the French state design system), the Figma prototyping tool, the Turbo JavaScript framework, the MapLibre GL JS mapping library.

    Backend side: PHP, the Symfony framework, PostgreSQL database, PostGIS.

    Development tools used: Docker, git and GitHub, unit tests, integration tests.
    JavaScript PostgreSQL Turbo PostGIS Symfony
  • The Programmatic Company
    Back-end Developer
    SOFTWARE PUBLISHING
    February 2023 - February 2023
    Paris, France
    Development of a Python module added to an existing web application, to optimize internet marketing campaigns, with requests to APIs like Google Ads or Facebook.
    Python PostgreSQL FastAPI Celery
  • ScenTree
    Software Engineer
    SOFTWARE PUBLISHING
    April 2019 - Today (7 years and 4 months)
    Rennes, France
    Creation, improvement, and maintenance of the website
    Displays on a digital geographical map the classification
    of ingredients used in perfumery, and allows users
    to modify ingredient data and their classification

    Technical stack:
    Python + Django + PostgreSQL + Celery
    Server side: Debian + Kubernetes
    Geomatics side: GeoDjango + PostGIS + Martin + MapLibre
    Django Python Kubernetes PostgreSQL Celery

Recommendations

BM
MF
Baud Maxime and 1 other person have recommended Julien

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Education

  • Computer Engineer
    ENSIIE, Évry
    2007

Skill set

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