I accelerate your tech projects with AI

Web Development, Data Science & Cloud Architecture | 20+ years of experience

Do you need to rapidly develop an MVP, an e-commerce platform or a data solution? I use the latest AI tools to drastically accelerate development while maintaining professional standards. 20 years of experience in scalable architecture and full-stack development.

20+ Years of experience
15+ Teams managed
65M Users impacted
Sébastien Cormier

About me

A journey dedicated to technical excellence and innovation

After 20 years in tech including 5 as CTO, I decided to put my expertise at the service of innovative projects as a freelance developer.

My specialty? Leveraging artificial intelligence to develop professional web applications in record time. Where a project would traditionally take 3 months, I deliver in 4 to 6 weeks thanks to cutting-edge AI tools.

My added value? Architecture, technical choices, code review, process and test automation. I guarantee optimal deliverable quality despite high velocity. My experience in scalable architecture and management background allow me to bring strategic vision while keeping hands in the code. Ideal for startups and SMEs that need a senior profile capable of moving fast.

Rapid Development Tech Consulting E-commerce AI Architecture Full-Stack Data Science

Execution Speed

Functional MVP in 4-6 weeks thanks to AI

Senior Expertise

Ex-CTO | Scalable Architecture | 20 years of experience

Modern Stack

Java/Spring, Python, Docker, ElasticSearch, Cloud AWS

Services Offered

AI-accelerated development for startups and SMEs

Complementary Services

AI Integration in Your Processes

I identify AI automation opportunities in your business processes and deploy concrete solutions: intelligent chatbots, automated document analysis, AI assistants on your internal data.

Technical Audit & Consulting

In-depth analysis of your technical stack, architecture and development processes. Detailed report with prioritized and quantified recommendations.

Freelance Developer in Rouen - AI Expert and Cloud Architecture

Based in Rouen, Normandy, I offer my web development and technical expertise services to startups and SMEs in the region and throughout France. With 20 years of experience in software development and 5 years as CTO, I master modern technologies and cutting-edge AI tools to deliver your projects quickly and with high quality.

Why Choose a Freelance Developer in Rouen?

As a freelance developer in Rouen, I offer local availability combined with international expertise. Whether you're in Normandy, Île-de-France, or elsewhere in France, I work in full remote or with on-site visits as needed. My freelance status allows me to be responsive and adapt to your budget while maintaining senior expertise level.

AI-Accelerated Development: My Differentiator

My specialty is AI-assisted development which allows me to deliver your projects 2x faster than traditional methods. Using tools like Cursor, GitHub Copilot and Claude Code, I maintain impeccable code quality while drastically reducing development times. Perfect for startups that need to launch their MVP quickly or SMEs that want to modernize their legacy applications without breaking the bank.

Technical Skills and Areas of Expertise

My technical stack includes Java/Spring Boot, Python/FastAPI, Machine Learning, and cloud architectures on AWS. I have solid experience in ElasticSearch (Carrefour), FinTech, and scalable microservices architecture. Whether for e-commerce platform development, AI integration in your processes, or technical consulting, I bring you a strategic vision combined with operational excellence.

Let's Discuss Your Project

You have a web development project, need technical expertise, or want to integrate AI into your company? Contact me for a free consultation and let's discuss how I can help you achieve your goals.

Contact me

Keywords:

Freelance developer Rouen, CTO freelance, web development Normandy, AI expert France, Python developer, Java Spring Boot, technical consulting, MVP startup, legacy application modernization, cloud architecture AWS, Machine Learning, full-stack developer Rouen, senior developer freelance, e-commerce development, FinTech expert