Hello, I'm Alexandre Chatelain Developer Consultat Analyst

Consultant IT

Consultant IT à la croisée du développement et de l'analyse métier, j'interviens sur l'ensemble du cycle projet : recueil des besoins, cadrage fonctionnel, optimisation des processus et des données, puis développement de solutions IT (Symfony, Flutter, Python). Cette double casquette me permet de livrer des solutions qui répondent autant aux enjeux techniques qu'aux objectifs business.

+5

Projects
compeleted

4

Years
of experience

Technical skills

Technologies

Python

50%

Flutter

75%

Symfony

95%

SQL

65%

Tool skills

Toolbox

Docker

75%
JIRA

70%
GitLab

90%
ChatGPT

80%
PHP Storm

100%
Firebase

85%
Notion

100%
Visual Studio Code

100%
Discord

100%
Teams

100%
Slack

80%
API

90%

General skills

Database

Firebase

100%
MariaDB

100%
SQL

75%

Langues

English (conversational)

70%
French

100%

Conceptes

Agile, Scrum
SEO
Driver licence
Javascript
WordPress
CI/CD
Responsive design
Shopify

SERVICES

What services do I offer?

🖥️

Développement

Des solutions digitales sur mesure, pensées pour répondre aux enjeux concrets de votre entreprise du site vitrine à l'application métier, en passant par l'analyse et la structuration de vos données.

Sites web & e-commerce
Applications web & mobiles sur mesure - Symfony, API, Flutter
Data & Process - Structuration, normalisation et analyse de données (PIM, reporting, préparation de données pour l'IA)
Refonte technique & migration - Modernisation, migration, réduction de dette technique

🎓 Consulting

Consulting & Solutions Digitales Sur Mesure

Un accompagnement complet sur vos projets digitaux, du cadrage stratégique à la mise en production je fais le lien entre vos équipes métier, vos équipes techniques et votre infrastructure cloud.

Analyse & cadrage des besoins Recueil des besoins métier, formalisation, priorisation, feuille de route projet
Gestion de projet Pilotage Agile/Scrum, coordination des équipes, suivi des livrables et des délais
Développement & architecture technique Web, mobile et applications sur mesure (PHP, Symfony, Flutter, Next.js)
Cloud & Infrastructure Conseil et déploiement AWS, CI/CD, sécurisation des environnements
Data & process Structuration et optimisation des données (PIM, reporting, préparation de données pour l'IA)

Quick start

🚀 Start my project

Consulting

Book now

Technical and architectural consulting - One-hour personalized session

Rapid audit and customized recommendations (scalability, performance, security, etc.)
Advice on choosing the right technology stack for your web or mobile project
Advice on architecture design (back-end, front-end, database, hosting, etc.)
Optimization of development processes (CI/CD, testing, best practices)

Web

Online store

Order now

Customized online store, fully optimized for mobile devices
WordPress + WooCommerce
Modern, user-friendly design (UI/UX) for fluid navigation
SEO optimization to boost your visibility on Google

Web

Professional showcase site

Order now

Professional showcase website, fully responsive on all devices

Easy-to-manage 5-page custom WordPress website
Clean design and optimized user experience (UI/UX)
Responsive layout, perfectly adapted to mobile and tablet screens
Basic SEO optimization for Google visibility

Mobile

MVP mobile application - iOS and Android

Order now

Simple mobile MVP development - iOS & Android

Cross-platform mobile application (iOS + Android) built with Flutter
Basic features only, designed to quickly test and validate your idea
Delivery of a working prototype, ready for presentation to users or investors
The service applies to a simple MVP, based on clearly defined requirements and scope.

Custom

💡 Do you have a personalized project in mind? Let's talk about it.

Do you have a unique idea or specific requirements?
I offer tailor-made solutions for web, mobile and technical consulting.

👉 Let's get in touch and bring your project to life.

Resume

Professional experience and training

2026 - Present

Larcier-Intersentia Luxembourg

Back-end developer

Au sein d'un environnement juridique et business complexe, je collabore avec les équipes métiers pour optimiser le PIM et les flux de vente, tout en pilotant la structuration des données pour leur exploitation par des outils d'IA. Je transforme des POC en solutions industrielles robustes et pilote la réduction de la dette technique (migration Symfony 2 → 6), dans une logique d'amélioration continue.

2022 - 2025

Freelancer

Web and mobile developer

I developed high-performance web and mobile applications with Agile workflows, using Flutter for cross-platform development and PHP/Symfony for web maintenance. I collaborated with creative and technical teams to improve the user experience.

2022 - 2024

Kogaia

Web and mobile developer

I developed event-driven websites with Symfony/PHP and Vue.js, implementing Agile methodologies for project management. I also developed in-house event management applications with features such as QR code scanning and push notifications.

2021 - 2022

Ubisport

Internship Full Stack Developer

I developed and launched three web applications, including a valuable PWA, and built custom tools to optimize sports facility management. This experience enabled me to improve my skills in comprehensive development and my expertise in Agile methodologies.

Educations

2026

PRINCE 2 V7

IN PROGRESS

2025

🎓 AWS Cloud Practitioner

Certification

🎓Bachelor of Information Technology (Spécialisation en développement mobile)

2021 - 2022

🎓Bachelor of Information Technology (Specialization in mobile development)

University of La Rochelle, France

🎓 Diplôme universitaire de technologie (DUT) en informatique

2019 - 2021

🎓 Diplôme universitaire de technologie (DUT) in computer science

University of La Rochelle, France

2018 - 2019

Baccalauréat scientifique - Industrial technology and sustainable development

Blaye, France

Enter text

2019

Aeronautical Knowledge Certificate (BIA)

Blaye, France

Enter text

Testimonials

Here's what my customers say

Excellent collaboration with Alexandre on a global 360 Back/Front development for a mobile application with a powerful pro/admin backoffice. Alexandre gives 100% to customer satisfaction and the quality of the final product. We look forward to working with him again on future projects.

Boris Lamarque

CEO, E-conit

I've worked with Alexandre on several mobile application projects. I highly recommend his rigorous, technical and autonomous work. We were able to carry out the various mobile application projects as a team, and Alexandre proved to be very efficient in their development and collaborative work.