Freelancer profile translated to English.
Back to original languageAbout Mathis
👋 Full Stack & AI Engineer
I design high-performance web applications and the automation and intelligence systems that power them. I work across the entire technical cycle: architecture, development, automation, AI integration, and deployment.
My goal: to build reliable, scalable systems that are directly useful to your business.
🏗️ DEVELOPMENT & ARCHITECTURE (BUILD)
Web & SaaS Applications
Development of modern applications with React, Next.js, and TypeScript, connected to robust backends in Node.js / ExpressJS / FastAPI (Python).
APIs & Backend Architecture
Design of high-performance REST APIs, access management, data structuring, and performance optimization.
Databases & Performance
PostgreSQL, MySQL, MongoDB modeling, query optimization, and use of Redis for caching.
Audit & Refactoring
Fixing critical bugs, stabilizing, and improving maintainability.
🤖 AUTOMATION & AI ENGINEERING (SCALE)
Workflow Automation
Elimination of repetitive tasks through custom automated systems.
Data Scraping & Extraction
Development of robust scrapers with Puppeteer, Selenium, or BeautifulSoup.
AI & LLM Integration
Integration of artificial intelligence APIs (OpenAI, LangChain, or other providers) for analysis, generation, and processing automation.
Internal Tools & Data Pipelines
Creation of business tools to structure and leverage your data.
⚙️ INFRASTRUCTURE & STACK
- Docker, CI/CD (GitHub Actions, Jenkins...), Linux, Nginx
- React, Next.js, TypeScript, Python
- Node.js, ExpressJS, FastAPI
- PostgreSQL, MongoDB, Redis, n8n
💡 A project, automation, or platform to build? Let's discuss your needs and the best technical approach. 👉 Click on "Propose a Project"
French
Native or bilingual
English
Native or bilingual
Remote only
Primarily works remotely
Experience
- Sopra SteriaDeveloperSOFTWARE PUBLISHINGOctober 2025 - December 2025 (2 months)Barcelona, Spain🚀 Context & Challenges: For Sopra Steria, as part of a project for SNCF, development and maintenance of an automated deployment pipeline for processing and validating sensitive data related to the railway network. The objective: to ensure the integrity, consistency, and quality of data before it goes into production, using Python scripts for validation, control, and automation, in a highly reliable environment.Sopra Steria BARCELONAPython
- Caisse d'Epargne Rhone AlpesProject Manager / PHP DeveloperBANKING AND INSURANCEApril 2025 - July 2025 (3 months)Lyon, France🚀 Context & Challenges: For La Caisse d’Epargne, autonomous development of an internal web application for employees. The objective: to design and deploy a reliable and maintainable tool, now used company-wide, to improve operational efficiency and structure internal processes.Caisse d'Épargne Rhône Alpes, LyonPHP / SYMFONY / BOOTSTRAPBackend / Frontend / Database
- Caisse d'Epargne Rhone AlpesProject Manager / PHP DeveloperBANKING AND INSURANCESeptember 2024 - February 2025 (5 months)France🚀 Context & Challenges: For La Caisse d’Epargne, contribution to the development and maintenance of critical business applications. The objective: to improve the reliability, performance, and scalability of existing systems, while developing new features that meet operational needs and the security standards of the banking sector.Contribution to the development of new features and corrective maintenance of internal tools.PHP / SYMFONYBackend & Frontend
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Education
- EPITECH BAC+5, Expert en Technologies de l'InformationEPITECH LyonEpitech, une institution prestigieuse au cœur de l'éducation technologique, a joué un rôle essentiel dans mon parcours pour devenir développeur. Fondée avec la vision de favoriser l'innovation. Ce qui distingue Epitech, c'est son approche pratique et axée sur les projets pour l'apprentissage. Ici, les étudiants comme moi sont encouragés à se plonger dans des défis du monde réel et à collaborer avec leurs pairs pour trouver des solutions inventives. Cette approche nous dote non seulement de compétences techniques, mais nourrit également notre capacité à résoudre des problèmes et à stimuler notre créativité. Le programme dynamique et en constante évolution de l'école nous prépare parfaitement à nous adapter au paysage technologique en constante évolution.