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Tristan G.TG

Tristan G.

Symfony / Ionic Developer — Business Applications

€380/day
8 projects
Brest, FR
8-15 years

Average response time: A few days

Freelancer profile translated to English.
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About Tristan

Fullstack developer, I mainly work with Symfony on the web/backend side and Ionic / Angular on the mobile side.

I have solid experience with Symfony, particularly in business applications, back-offices, APIs, extranets, and internal tools. I also work extensively with Twig and TailwindCSS to create simple, clean, and easily maintainable interfaces.

I can work on an existing project to add features, fix bugs, tidy up the code, or improve performance. I can also participate in the creation of a new project, from the initial structure to production.

I regularly use Doctrine, MySQL, PostgreSQL, PL/SQL, Git, GitLab, GitHub Actions, Jenkins, Docker, Kubernetes, Grafana, Varnish, as well as Linux environments like Ubuntu or Debian.

I also have experience with Laravel, React, AWS, OCI, and Firebase, although my core expertise remains Symfony, Ionic, Twig, and TailwindCSS.

On mobile, I can handle Ionic development, builds, testing, and publication on the Android and iOS stores.

I strive to work pragmatically: understand the need, choose an appropriate solution, keep the code readable, and avoid overcomplicating things when unnecessary.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Brest (up to 50km), Quimper (up to 50km), Paris (up to 50km), Nantes (up to 50km), Rennes (up to 50km)

Experience

  • Seroni
    Fullstack Developer
    January 2024 - May 2026 (2 years and 4 months)
    Complete redesign of the multi-site
    Previously under Wordpress, the site was completely redeveloped to meet needs for efficiency, speed, and user experience.

    This platform is divided into 4 distinct parts around the theme of insurance and brokerage:

    - News Assurances Pro (Journalist content)
    - Cercle LAB (Research Hub)
    - i3 (Innovation)
    - Annie (Training)

    Tech Team: 4 members

    - 1 Scrum Master
    - 1 Product Owner
    - 2 Developers

    Achievements:

    - Development of the platform in accordance with the UI/UX Designers' mockups
    - Addressing technical issues related to the previous environment
    - Migration from MySQL to PostgreSQL
    - AWS solution for recording training playback logs (Multi-channel)

    Technical Environment:

    - MacOS
    - PHP Storm
    - GitHub Version Management
    - Continuous Deployment
    - Docker Development Environment
    - SCRUM
    PHP Symfony TailwindCSS twig AWS S3 PostgreSQL
  • Seroni - Annie
    Mobile Application Developer
    BANKING AND INSURANCE
    December 2022 - May 2024 (1 year and 5 months)
    Context:

    Development of the mobile application "Annie", an application dedicated to insurance training.

    The objective was to create an application allowing the playback of video content, the completion of multiple-choice quizzes, various programs, or even the generation of training certificates.

    Launched on the AppStore and Google Play Store.

    Achievements:

    - Development of the iOS & Android application in accordance with the UI/UX Designers' mockups
    - OneSignal solution for sending notifications

    Technical Environment:

    - MacOS
    - Visual Studio Code
    - GitHub Version Management
    - Google Play Store
    - App Store
    Ionic Framework AngularJS OneSignal Capacitor
  • Seroni - Cercle LAB
    Mobile Application Developer
    BANKING AND INSURANCE
    June 2023 - December 2023 (6 months)
    Context:

    Development of the mobile application "Cercle LAB", a prospective research hub to develop solutions for the challenges of the insurance sector and to develop its network.

    The objective was to create an application allowing professionals in the sector to connect, to also be able to register for company events and follow their activity.

    This application is also live throughout the year, allowing users to interact or consult content within the application.

    Completely autonomously, I was responsible for creating the application with Ionic and Angular, having the project mockup available.

    Launched on the AppStore and Google Play Store.

    Achievements:

    - Development of the iOS & Android application in accordance with the UI/UX Designers' mockups
    - Cloud Messaging solution for sending notifications

    Technical Environment:

    - MacOS
    - Visual Studio Code
    - GitHub Version Management
    Ionic Framework AngularJS Firebase Cloud Messaging Capacitor

Reviews

5.0

Out of 8 ratings

B

Benjamin

house id - house id

Reviewed on 12/16/2025

Very professional and very involved in the project, trustworthy person, I highly recommend!
L

Laurent

proovee

Reviewed on 10/9/2023

Perfect, thank you

Recommendations

Vincent BellecVB
PL
Vincent Bellec and 1 other person have recommended Tristan

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Education

  • BTS SIO Option SLAM
    ESTRAN Charles de Foucauld (29200 Brest)
    2019
    Apprentissage des bases de programmation, gestion de données et développement personnel. Divers languages et framework étudiés (SQL, PhP, Symfony..)

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