Freelancer profile translated to English.

Description

For over 12 years, I have been supporting startups, SMEs, and large corporations on an eclectic range of digital projects. Hardworking, friendly, and reassuring, I integrate into all teams as:

*👨‍✈️ Fractional CTOto establish strategy, architecture, and product definition.

*👷‍♂️ Lead Fullstackto manage a complex project or unblock a struggling product.

In reality, often a bit of both!

🛠️ Typical missions

Build an application or SaaS from A to Z, with a reliable and sustainable architecture.
Set up a data warehouse/dashboards to manage business performance (sales, retention, margin).
Create a POC factory to validate product ideas.
Build agentic workflows to automate SEO, support, ops...
Take over a product bogged down by technical debt.
Equip the team with in-house AI (RAG, MCP, internal assistants).

⚡ Delivering quality code in the AI era

☠️ Observation – Prompting without a framework only produces agentic mess: code that nobody masters, that does more than requested (and less at the same time), impossible to evolve, and that ends up dragging the project down.

🦸‍♂️ My solutions:

Versioned processes and skills that enforce good coding practices for the LLM.
A breakdown into sub-tasks (vertical slices) that keeps the agent within an "intelligent" context window.
A control process at each stage: specs, TDD tests, code review.
Human intervention at crucial moments: decision arbitration (architecture, scope), spec validation, front-end prototype review, and final review before commit.

🌱 Project with social or environmental impact? I reduce my rates – let's talk!

Keywords: LLM, RAG, prompt engineering, AI agent, agentic, Fractional CTO, interim CTO, CTO as a Service, technical director, technical management, fundraising, product roadmap, scale-up, team management

Industry field of expertise

Languages

Italian
Native or bilingual
English
Fluent
French
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 10km)

Wexeor
CTO as a Service / Fractional CTO
October 2025 - Today (10 months)
Technical management of a real estate wealth management SaaS, from conception to production.
Full SaaS: Next.js, PostgreSQL, Vercel, Stripe
Modern Deployments: Vercel / Neon / Github CI/CD / Sentry / Resend
Custom MCP Server: agentic tooling connecting the application to LLMs (Claude) for power users.
AI integration and prompt engineering.
LLM AI Agents MCP Prompt Engineering Next.js
Sline
Lead Frontend Developer
SOFTWARE PUBLISHING
February 2024 - March 2025 (1 year and 1 month)
Design and development of three applications for a rental with option to buy solution.
- Acquisition funnel (Electronic Signature, Bank Aggregation and Fraud Detection, Identity Verification...)

- Administration Dashboard (KPIs, Actions, Workflows)
- User Account (Rental Management)
Node.js React.js Authentication DevOps Retool
Artefact
Lead Fullstack Developer / Data Engineering / Dashboard Engineer
May 2022 - November 2023 (1 year and 6 months)
Development of custom applications for the marketing department of a large international group, enabling the visualization and creation of audience segments for retargeting purposes.
Recruitment of front-end reinforcements for the team.
In parallel, design of custom widgets integrated into Looker.
Looker Studio Data Visualization React.js Python Tech Recruitment