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Céline UngCU

Céline Ung

Supermalter

Fullstack Developer

€750/day
2 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Céline

Fullstack web consultant since 2015, I support my clients in the realization of their web projects. I have always paid attention to the implementation of maintainable and accessible solutions for all.

With my experience, I can also help you establish a good team dynamic with good collaboration and work practices.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km)

Experience

  • beta.gouv.fr
    Fullstack Developer at beta.gouv.fr
    PUBLIC SECTOR
    July 2023 - Today (3 years)
  • Groupe InVivo
    Fullstack Developer at Invivo Digital Factory
    November 2021 - Today (4 years and 8 months)
    Participation in the development of applications allowing agricultural cooperatives to sell products and services to their members. (Team of 4 developers)
    Main missions and tasks:
    - Adding features to aladin.farm (for members), tech.aladin.farm (for technicians), and seller.aladin.farm (for administrators / agricultural cooperatives)
    - Participation in the redesign of farmi.com based on existing Aladin fronts (design changes and adaptation of certain parts of the sites to Farmi's needs)
    - Improving platform performance (optimizing API calls from fronts to limit requests, load testing with k6, adding database indexes, analyzing API requests with Kibana's APM)
    - Use and enrichment of the design system used by the three Aladin and Farmi front applications (eventually Aladin and Farmi will each have their own design system)
    - Setting up Kibana dashboards to monitor our APIs
    - Knowledge sharing through daily mob reviews
    Technical environment: Vue.js 2, Hapi.js, sequelize, MySQL, Mocha, Jest, sinon, Storybook, Kibana, Git
  • Zenika
    Fullstack Developer at Pix
    November 2019 - October 2021 (1 year and 11 months)
    Pix is a startup that offers an online platform for anyone wishing to evaluate, develop, and certify their digital skills.
    Main missions and tasks:
    - Participation in the development of the app.pix.fr website (internationalization, new types of tests, badge acquisition)
    - Improving accessibility
    - Implementation of a design system used by 4 front applications
    - Participation in production "captains" (monitoring production, informing and restoring if there is a problem, improving tooling)
    - Knowledge sharing through daily mob reviews
    Environment: Ember.js, Hapi.js, knex, bookshelf, PostgreSQL, Mocha, Chai, sinon, Nuxt.js, Vue.js, Storybook, Datadog, Lambdatest, Git

Reviews

5.0

Out of 1 rating

G

Gael

Plateforme de l'inclusion

Reviewed on 11/13/2025

Céline is very attentive to needs and is committed to delivering polished developments. She also knows how to be patient and pedagogical. It's a pleasure to work with her.

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Education

  • Major: Information Systems
    ECE Paris
    2015
    Majeure: Systèmes d'information
  • Master of Science in Computer Engineering
    Sungkyunkwan University
    2014
    Master's degree, Computer Engineering

Certifications

  • Certified Scrum Master
    Scrum Alliance
    Scrum Master

Skill set (15)

Categories