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Pierre HaegeliPH

Pierre Haegeli

AI Builder Coach + Fractional CTO

€850/day
Luxembourg, LU
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Pierre

Founder of Abecedia, I support founders, product teams, and SME managers who have started building their apps with AI tools (Lovable, Bolt, Cursor, Claude Code, v0) — and who face technical fragilities when it comes to going into production.

My two modes of intervention:

AI Builder Coach — I train and coach your teams (technical or not) to master vibe coding: stack choices, effective prompts, security, deployment, quality of generated code.

Fractional CTO onboarded — I take partial technical responsibility for your product: architecture, security, GDPR compliance, hosting, technical debt. 26 years of experience in all roles (senior dev, front lead, architect, co-founder).

My differentiators:
- I speak "vibe coding" fluently, not a consultant discovering AI tools
- I still code daily in React, TypeScript, Next.js
- Sparring mode: we move forward together, you remain autonomous afterwards
- Pragmatic: no rebuild from scratch, we consolidate what exists

Types of missions:
- Technical audit of a vibe-coded prototype + production deployment plan
- Regular support (1-3 days/week) as Fractional CTO
- Coaching teams on the use of AI Builders
- Selective refactoring, security, hosting

Based in Luxembourg, I work remotely or occasionally on-site. Immediately available.
  • English

    Native or bilingual

  • French

    Native or bilingual

Can work on-site
Luxembourg (up to 50km)

Experience

  • Abecedia
    AI Builder Coach (Fractional CTO)
    January 2026 - Today (6 months)
    Founder of Abecedia, an independent activity positioned as AI Builder Coach + Embedded Fractional CTO. I support founders, product teams, and business experts who are building their apps with AI tools (Lovable, Bolt, Cursor, Claude Code, v0) to move from prototype to production-ready: architecture, security, GDPR, scalability, hosting. Four families of offerings: Production-Ready Audit, Production Deployment (Foundation Build), Sparring Support (Embedded Fractional CTO, 3 intensities), Training & Workshops. Abecedia Method: systematic independent security review before production, built-in monitoring by default, pair coding on complex points. 100% remote, FR/EN.
    Fractional CTO Artificial Intelligence Coaching Next.js Software Architecture
  • Clubee
    Frontend Developer
    January 2025 - December 2025 (11 months)
    Foetz, Luxembourg
    Senior Web Developer at Clubee, a sports/clubs SaaS platform based in Luxembourg. Development and maintenance of front-end components in React and Next.js. Integration of MUI components (Material UI) for a scalable and responsive interface. Collaboration with cross-functional teams via GitHub. Stack: React, Next.js, TypeScript, MUI, Tailwind CSS. Agile methodology, systematic code reviews, focus on quality and UX performance.
    React.js Next.js Typescript Material UI TailwindCSS
  • VOUS Agency
    Senior Web Developer
    July 2022 - January 2025 (2 years and 6 months)
    Steinfort, Luxembourg
    Senior Web Developer at VOUS Agency, a Luxembourg-based communication agency. Design and development of front-end interfaces for client applications and websites. Project management, maintenance, and creation of WordPress sites, development of web applications like e-commerce. Stack: PHP, WordPress, Vue.js, Node, Tailwind CSS, Git, VSCode, Adobe Creative Suite, Figma. Various clients in healthcare, media, and corporate sectors.
    WordPress PHP Vue.js TailwindCSS Project Management

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Education

  • Vue3
    Vue3
  • Professional qualification certificate for Sound Technician and MIDI Synthesizer Programmer
    European Institute of Music Professions (ITEMM)
    1996
    Certificat de capacité professionnelle de Technicien du son et Programmeur de synthétiseurs MIDI

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