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Patrick HerontPH

Patrick Heront

Fractional CTO - Europe & Japan

€750/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Patrick

With over 25 years of IT experience, I support companies in their software development, digital transformation, and international expansion challenges, with strong expertise in SaaS and web applications.

As a builder at heart, I bridge the gap between business vision and technical execution, from strategy to production and operations.

I assist software vendors, startups, and companies undergoing digital transformation. I define and manage the technical vision while covering all or part of the product lifecycle: business scoping, architecture, development, launch, SEO, and operations.
• Technical Leadership & Strategy: defining technical vision, architectural choices, aligning technology with business objectives, structuring and managing technical teams
• Software & Product Delivery: analyzing and prioritizing needs, designing solutions, operational execution, deployment
• Modernization & Refactoring: transforming websites and legacy systems, leveraging AI where it provides concrete value
• AI Integration: integrating AI into business processes and products, automation, team upskilling
• Digital Transformation: defining strategy, structuring IT organizations

Based between France and Japan, I am particularly well-positioned to support:
• Japanese companies looking to deploy their digital solutions or IT strategy in Europe
• European companies needing a local contact to enter and operate in the Japanese market

I have developed my experience across various sectors, including tourism, legal publishing, automotive, pharmaceuticals, and retail.
  • French

    Native or bilingual

  • English

    Fluent

  • Japanese

    Conversational

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Lille (up to 50km), Nantes (up to 50km)

Experience

  • Heront IT
    Senior Digital Transformation Consultant
    RETAIL (SMALL BUSINESS)
    March 2026 - March 2026
    Tokyo, Japan
    TACHIKOMA-AI - (Shift Management Software publisher)
    o Preparation for the deployment of the Boutique DX solution in Europe for luxury brands
    o Production of training and deployment materials
    International Product Management AI Agent SaaS
  • Heront IT
    Development and launch of a SaaS platform
    TRAVEL AND TOURISM
    September 2024 - Today (1 year and 9 months)
    Tokyo, Japan
    MyTripFlow is an innovative SaaS service that allows users to quickly and easily organize their trips and access all necessary information: daily calendar, accommodations, transportation, and important documents.
    Its automatic calendar population feature from travel documents simplifies data entry and updates for trip-related information.

    Fully developed with Bubble, Astro, and GPT-5.
    Product Management SaaS Astro Bubble GPT-5
  • Heront IT
    Digital Transformation Consultant - Project Management
    CONSULTING AND AUDITS
    December 2022 - Today (3 years and 5 months)
    Tokyo, Japan
    oFeb. 2025–May 2025 - NOVO NORDISK JAPAN (Pharmaceutical industry) – Senior Consultant
    - Improvements to the “Data, Digital & IT” organization: assessment report of the current state, proposal of concrete improvements to foster digital transformation and AI
    - Building the digital vision and strategy 2030

    oMar. 2025-Apr. 2025 – CARTIER JAPAN (Luxury Retail) – Senior Consultant
    - Optimization of internal communication in stores and offices: analysis of the existing situation and proposal for a rationalization and simplification program

    oMay 2023–Nov. 2024 - NIPPON EXPLORERS TRAVEL (Tourism - Tokyo-based tour operator) - Product Manager
    - Audit, requirements gathering, and design/development of a new platform for creating and preparing travel offers (Zoho CRM, Zoho Creator). Automatic generation of documents in Google Drive
    - Identification of short and medium-term AI use cases (ChatGPT) and prototyping

    oMar. 2023-Jun. 2023 - ISABEL MARANT (Fashion) - Project Manager
    - Project management for the purchase and deployment of the IT infrastructure for new stores in Tokyo

    oDec. 2022-May 2023 - PERNOD RICARD JAPAN (Wine and Spirits Retail) - Data Governance Lead
    - Data sources mapping
    - Identification of major operational issues and definition of program priorities
    - Definition of roles and governance principles
    - Creation and facilitation of a data governance committee
    Digital Transformation International Data Governance Project Management Artificial Intelligence

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Education

  • PhD, Fluid Mechanics / Numerical Simulations
    École Centrale de Lyon
    1997
    Doctorat, Mécanique des Fluides / Simulations Numériques
  • Engineering Degree
    École Centrale de Lyon
    1993
    Diplôme d'ingénieur

Skill set

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