SEM Japanese

What I do

I help companies grow through data-driven marketing, AI consulting, and go-to-market strategy.

With over 20 years of experience across Europe and Japan, I support startups and scale-ups in building scalable acquisition systems, improving performance, and aligning marketing with business goals.

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Background

Over the past two decades, I’ve built my career in performance marketing, starting in 2003 when online advertising was still in its early days. Since then, I’ve focused on data-driven marketing: tracking performance, understanding the numbers, and building strategies based on facts rather than assumptions.

Originally from Japan, I began my career in the Japanese market as a search engine marketing manager. The name semjapanese.com reflects my roots and where my journey started.

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Experience

I’ve worked across industries including travel, hospitality, SaaS, automotive, and e-commerce, both in large international companies and fast-growing startups.

• Worked at companies such as Expedia, Wunderlist (acquired by Microsoft), and Worldhotels
• Built and scaled marketing strategies from the ground up
• Managed performance marketing across multiple channels (PPC, social, display)
• Led cross-functional teams across marketing, product, and engineering

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What I bring

• 20+ years of hands-on experience in performance marketing
• Proven ability to build and grow teams in international environments
• Strong combination of strategic thinking and hands-on execution
• Experience managing budgets from small scale to multi-million annual spend
• A practical, results-oriented approach focused on results

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Education & International Perspective

I hold an MBA from EDHEC Business School in France and a degree in Japanese Language & Linguistics from Daito Bunka University in Tokyo.

Living and working internationally has shaped how I approach marketing—with cultural sensitivity, adaptability, and a global perspective.

I speak Japanese (native), English (C1), and German (B2), and I am based in Berlin, Germany.

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Today

Today, I focus on helping businesses grow through strategic marketing leadership, AI consulting, and go-to-market planning.

Whether it’s scaling a team, entering a new market, or implementing AI in workflows, I bring a practical, results-oriented approach.

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Let’s talk

If you’re looking to improve your marketing performance, enter a new market, or explore how AI can support your business, feel free to reach out.