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Koji MastKM

Koji Mast

Key Account Manager

€130/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Koji

With more than 5 years of experience in Japan in the technology, electronics and electrical systems industry – particularly in the automotive sector – I now support companies in the reflection and implementation of international commercial strategies.

I currently work for a major player in connectivity, where I conduct high-level technical and commercial negotiations, in interaction with partners and customers around the world.

My added value is based on:

✔️ A triple linguistic competence (French, English, Japanese – fluent)
✔️ A fine understanding of multicultural and industrial environments
✔️ An ability to translate technical issues into business levers, within a demanding B2B framework

Whether it is to define a strategy, structure an international commercial speech, negotiate with foreign partners, or simply better align your international teams, I can support you with rigor, adaptability and impact.
  • English

    Native or bilingual

  • Japanese

    Native or bilingual

  • German

    Basic

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • YAZAKI Europe Limited
    Key Account Manager
    AUTOMOBILE
    February 2025 - Today (1 year and 4 months)
    Paris, France
    - KAM for leader automotive group
    - Managing a global customer base (JP, EU, Americas...)
    - In charge of OEMs and Tier 1 on major international programs
    - Leading commercial strategy, RFQs, and lifecycle cost management
    - Driving cross-functional collaboration with internal teams (engineering, quality, supply chain, project management)
    - Ensuring alignment between technical capabilities and business objectives to support customer roadmaps
    - Monitoring industry trends and sourcing strategies to strengthen long-term competitiveness and customer partnerships
    International Trade Commercial Strategy Business Plan Development English Japanese
  • FORVIA (Clarion Electronics)
    Sales & Marketing Manager
    TECH
    January 2021 - January 2025 (4 years)
    Saitama, Japan
    - Manage all lighting & electronics customer portfolio in Japan including Japanese manufacturers & exporters (EU/US/ASEAN etc.)
    - Order intake acquisition and sales monitoring
    - Customer intimacy development
    - Coordination with quality teamin Austria & logistic team in Singapore
    - Annual strategic plan & budget for all Japan market
    - E-commerce developer for Clarion branded products
    - New business development: market research, analysis & canvass new value spaces
    Japanese Business Plan Development Sales Management Web Marketing Strategy Salesforce
  • FORVIA (Faurecia Japan)
    Communication and Marketing Specialist
    AUTOMOBILE
    January 2019 - January 2021 (2 years)
    Yokohama-shi, Kanagawa Prefecture, Japan
    - Business intelligence, monitoring market evolution and data analysis
    - Annual strategic plan & budget for Japan, Thailand & Indonesia
    - Monthly marketing report on Japanese manufacturers & market
    - Monitor brand consistency across marketing channels and materials
    - Event manager for fairs & motor shows
    Japanese English Data analysis Event Management Communication Strategy

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Education

  • MASTER DEGREE
    AIX-MARSEILLE UNIVERSITY
    2018
    MASTER DEGREE
  • BACHELOR'S DEGREE
    UNIVERSITY OF NANTES
    2016
    BACHELOR'S DEGREE

Certifications

  • N1 Japanese proficiency
    JLPT
    2019
    Japanese
  • BJT J1 Japanese proficiency
    BJT
    2023
    Japanese Interpreter Business Japanese Japanese Japanese French Translation

Skill set

Categories