Aetherio Logo
Artificial Intelligence

Claude Code & AI Developer in Lyon

AI as a productivity lever, not a gimmick. I code faster and better with Claude.

Why AI-native development

I'm not a developer who "uses ChatGPT a bit". AI is integrated into every step of my work: design, development, debugging, tests, documentation.

Claude Code is my main tool. It's a CLI that understands my project context, navigates code, proposes changes and executes commands. Not a chatbot in a browser, a real pair programmer that knows my codebase.

The concrete result: I deliver in weeks what would take months with a traditional approach. Not because the code is sloppy, but because repetitive tasks (boilerplate, unit tests, migrations, documentation) that take 60% of a developer's time are accelerated 5-10x.

What AI concretely changes

Execution speed. A complete CRUD with validation, tests and documentation in 20 minutes instead of 2 hours. A 30-file refactor in 1 hour instead of a full day. It's not magic, it's intelligent automation of mechanical tasks.

Code quality. Claude detects edge cases, type inconsistencies, anti-performance patterns that the human eye misses after 8 hours of coding. Code reviewed by AI + my expertise produces a better result than either alone.

Technical exploration. Before choosing an architecture, I have Claude brainstorm options, tradeoffs, existing patterns. It doesn't decide, I do. But it helps me consider options I wouldn't have explored due to time constraints.

Accelerated onboarding. On a new project or legacy codebase, Claude analyzes code, identifies patterns, explains business logic. What took days of code reading takes hours.

AI in your products

Beyond my own usage, I integrate AI features directly into the products I build for my clients.

Contextual chatbots. Not a generic chatbot. An assistant that knows your product, your data, your processes. Embedded in the interface, connected to your database, able to answer questions specific to your business.

Automatic classification. Support tickets sorted automatically, leads scored, documents categorized. AI handles what your teams did manually, with superior consistency.

Content generation. Product descriptions, personalized emails, automatic reports. Each piece of content generated from your data, in your tone, following your rules.

Data analysis. Insight extraction from unstructured data, anomaly detection, predictions. AI transforms your raw data into decisions.

My AI approach

AI amplifies, it doesn't replace. Every suggestion is validated by my expertise. AI proposes, I decide. The final result carries my signature, not a model's.

Full transparency. My clients know I use AI. It's not a secret, it's an assumed competitive advantage. They benefit from the speed and quality, in full transparency.

Right model for the job. Claude for complex reasoning and code. GPT-4 for certain generation tasks. Open-source models when data must not leave infrastructure. Each task has its tool.

Controlled costs. AI integration in your products is designed to be economical. Caching, rate limiting, appropriate model selection. API costs remain marginal even at scale.

What I build with Claude Code & AI

Augmented development

Claude Code as a permanent pair programmer. Code generation, refactoring, debugging, code review. Development is faster and code quality is higher.

Architecture & design

Technical brainstorming, architecture evaluation, pattern exploration. Claude helps make better technical decisions faster.

AI integration in your products

Intelligent chatbots, automatic classification, content generation, data analysis. AI built into your application, not a gimmick on the side.

Intelligent automation

n8n + AI workflows for automatic ticket processing, data enrichment, report generation. AI serving your business processes.

Migration & modernization

Legacy code analysis, refactoring proposals, assisted migration. Claude accelerates modernization projects by understanding existing code.

Technical documentation

Documentation generated from code, README, API guides, developer onboarding. Documentation is no longer a bottleneck.

The ecosystem I use

Claude Code

Anthropic's dev CLI, AI pair programming.

Cursor

AI-augmented IDE, inline editing and generation.

Vercel AI SDK

LLM integration in production, streaming, tools.

Claude API

Anthropic API for AI integration in products.

n8n + AI

AI nodes in automation workflows.

They trusted me

Founders and business owners who had a project, a need, a deadline. Here's what they have to say.

"Disponibilité, réactivité et implication. Valentin est professionnel et pédagogue."

A

Alban B.

CEO Belho Xper

"Il allie une expertise technique pointue à une solide vision business."

C

Charley A.

Co-fondateur Avnear

"La communication a toujours été fluide et les délais respectés, ce qui est rare et très appréciable."

C

Chihab A.

CEO E-commerce

"Valentin a su être à l'écoute de mes attentes et de mes besoins. Les résultats ont été plus que satisfaisants."

S

Sandrine V.

Gérante Sandrin's Nail

"Une entreprise qui sait s'adapter parfaitement au besoin client."

S

Stanislas M.

Commercial

"Depuis la mise en ligne, nous avons remarqué une nette augmentation des appels et des demandes de renseignements."

C

Christophe R.

PDG Ravi Groupe

Frequently asked questions

Claude Code is my daily pair programmer. It accelerates repetitive tasks (CRUD, tests, migrations), proposes architectures I validate and refine, and catches bugs I might miss. Result: I deliver in weeks what would take months, with higher code quality.

Unsupervised AI code, yes. That's why AI is a tool, not a replacement. I validate every line, guide the architecture, know the limits. 5 years of experience + AI > AI alone. The combination is what makes the difference.

Yes. Via the Vercel AI SDK, I integrate AI features directly into your products: contextual chatbots, automatic classification, content generation, data analysis. All with real-time streaming and cost management.

No, the opposite. AI makes me more productive, so projects cost less at equal quality. For AI integration in your products, API costs are marginal (a few euros per month for most use cases).

Primarily Claude (Anthropic) for development and product integration. OpenAI's GPT-4 as complement depending on use case. I choose the model best suited to each task, not a single provider.

No. AI amplifies competent developers and exposes incompetent ones. A developer who understands architecture, patterns and constraints produces 10x better results with AI than a non-developer who prompts. Expertise remains the foundation.

A project with Claude Code & AI ?

Free first call, no commitment.

Discover my resources