Freelancer profile translated to English.
Back to original languageAbout Pierre-Henri
Fractional CTO — I support startups and product-focused SMEs in structuring, securing, and scaling their technical systems.
I step in when a team lacks an experienced CTO or when the product begins to suffer from technical debt: delivery slowdowns, recurring bugs, recruitment difficulties, or unstable architecture.
My role isn't just to develop but to make the team autonomous and high-performing:
• Architecture and standards definition
• Prioritization of technical vs. business roadmap
• Technical debt reduction
• Delivery process structuring (CI/CD, QA, release)
• Implementation of engineering performance indicators
• Developer coaching and mentoring
• Technical recruitment assistance and candidate evaluation
• Build vs. buy arbitration and technology choices
I typically work 1 to 3 days a week, in direct collaboration with the CEO / CPO, to provide senior technical vision without the cost of a full-time CTO.
Main stack: TypeScript, React, Node.js, AWS/Vercel cloud, API & event-driven architectures — used as a business lever, not an end in itself.
French
Native or bilingual
English
Fluent
Can work on-site
Nantes (up to 30km), Nantes (up to 30km), Paris (up to 50km), Angers (up to 50km), La Roche-sur-Yon (up to 50km)
Experience
- Le SujetTechnical Manager / Lead DeveloperJune 2025 - Today (1 year)• - Design of the multi-component architecture: backend API (Node.js/Express), administration interface (React/Vite), mobile application (Expo/React Native)• - Setup of the thematic content model (themes, questions, sources, keywords) and data flows between admin, API, and app• - Integration of an AI pipeline (LangChain, N8n) for article analysis, theme assignment, and summary generation per question• - Ingestion and indexing of multiple sources (URL, PDF, notes): PDF extraction, chunking, embeddings, and vector search (Qdrant)• - Structuring of the codebase (unit tests, TypeScript typing, conventions) and guidance on technical choices• - Production deployment and maintenance: asynchronous jobs (Bull/Redis), scheduled tasks, secure API (JWT), skills=[]
- AidiomixFounder & Technical Manager ofMay 2025 - Today (1 year and 1 month)• • Product and use case definition• • Application and data architecture• • Platform and dashboard development• • Integration of code analysis and automated translationTool allowing non-technical teams to manage translations without developer intervention., skills=[]
- FASSTTechnical ManagerJanuary 2025 - November 2025 (10 months)Application architecture design• Setup of the conversion funnel and data flows• Technology selection and codebase structuring• Technical guidance and standardization of practices• Production deployment and stabilization, skills=[{id=React.js, type=GLOBAL, name=React.js}, {id=Node.js, type=GLOBAL, name=Node.js}, {id=DevOps, type=GLOBAL, name=DevOps}]
Reviews
Recommendations
AS
FU
+1
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Education
- EngineerISEP2014