Freelancer profile translated to English.
Back to original languageAbout Xavier
After a solid background inmicroservices,**web/mobile** development, andagile coaching**, I now wish to leverage my expertise while continuing to learn within projects implementing **artificial intelligence (agentics, LLM, and machine learning)for the benefit of theproduct.
- I place great importance on user experience and **concrete product value**, mastering its entire lifecycle, from inception and prototyping to production monitoring.
- I favoragile methodologiesand team dynamics to ensure regular and efficient deliveries, implementingcontinuous delivery(CI/CD) in a cloud/DevOps environment.
- I focus on code quality through clean code principles, **TDD, and software craftsmanship**, and I maximize the use of AI-based tools in my daily tasks.
- My experience inmicroservices(Node, Spring Boot), front-end web development (Vue/Nuxt), and mobile development (Kotlin, PWA) allows me to design and deploy scalable and robust solutions.
- I now wish to work on projects integrating agentics, machine learning, LLMs, and generation, such as my gepetto.chat project based on OpenAI APIs.
I remain open to any business sector, with a preference for human-scale structures where my impact on the product is strongest.
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Python LLM OpenAI Java Kotlin Spring spring-boot docker Hibernate Scrum SQL Angular JavaScript HTML5 CSS3 gradle android xcode swift bootstrap Node.js kubernetes
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 10km), Fontainebleau (up to 30km)
Experience
- Gepetto AiFounder & CTOSOFTWARE PUBLISHINGMarch 2023 - January 2025 (1 year and 10 months)https://gepetto.chatGepetto is a Saas (side-project) providing ChatGPT experience within Whatsapp mobile and desktop apps.It's more that 14'000 users worldwide as of sept. 2024.This product envolves :- Twilio programmable phone number- Whatsapp webhook API- ChatGPT completion API- Conversation context management- Subscriptions and Payment integration with stripe- Landing page design & hosting- Facebook Ads and Google Ads campaigns- Google Analytics- cloud native / serverless programming for high availability_LLM, OpenAI, whatsapp Api, Twilio, ChatGPT Api, Google AdWords, Google Analytics, Firebase, Firestore, Stripe API
- DecathlonTech LeadRETAIL (LARGE RETAILERS)October 2018 - Today (7 years and 8 months)Paris, FranceWeParis isa development team of 10 peopleoffering innovative B2E solutions for Décathlon stores. Our uniqueness:integrating skillsin product design, development, UX research & prototyping, dev|sec/Ops **within the same team**.We have developed and supportedabout ten digital products**, deployed to **several thousand usersin stores in France and worldwide, on regulatory or economic performance topics:- Registration of bicycles ❤️: 5500+ users, 2200+ bicycles registered per day- Store and aisle layout (FCS)- Animation of store captains- Management of employees' working hours in stores- Efficiency questionnaire: employee self-assessment- In-store order delivery within 2 hours.Our team ishosted in one of the brand's stores in Paris**. This location allows us to get **the fastest possible feedbackbetween the development team and end-users.My responsibilities:- Fullstack typescript / VueJs / firebaseDevelopment- Fullstack spring boot / angular 8 / AndroidDevelopment- Support forproduct design(MVP Design, story mapping, etc.)- Implementation of the continuous delivery pipeline-Recruitmentof team members-Coachingthe team on agile practices-Coachingsoftware craftsmanship, TDD / BDD_Spring, Java, Kotlin, Angular, NuxtJS, Vue.JS, Firebase, Firestore, Postgresql, Docker, Gitlab CI, Github Actions
- 7NEXTSenior Software DevelopmentTECHSeptember 2017 - October 2018 (1 year and 1 month)Paris, FrancePup Scan is a handheld scanner that allows you to digitalize and send several pages of your documents seamlessly.https://www.indiegogo.com/projects/pup-scan-the-world-s-fastest-pocket-scanner- Develop the Camera middleware API (C++/ Kotlin)- Develop the embedded software (Android / Kotlin)- Create a build factory with Gitalb & docker solutions- Setup the Scrum organization of the team- System & hardware validation- follow-up of outsourced development (in china)https://www.youtube.com/watch?v=hqdbQ2n121I
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Education
- Engineering Degree, Computer Science specializationCNAM de Paris2008
- University Diploma in Technology in Computer ScienceIUT de Fontainebleau2001
Certifications
- Learning KubernetesLinkedin Learning2020