About

I’m Nicolas Ishihara. I live in Osaka, where I help AI and developer platforms succeed in Japan.

Ever since I was a child, I’ve been captivated by languages and their power to bring cultures together. I taught myself English at 10, earned a degree in literary and specialized translation in Buenos Aires, studied Japanese and Chinese, and taught Japanese at the University of Buenos Aires’ language center before moving to Japan, which I now call home.

I started out in Osaka in customer support for ZenMarket, a cross-border e-commerce platform, and grew into directing its multilingual marketing across 12 markets. Building internal tools along the way pulled me into engineering, and I went on to ship React, Next.js and TypeScript interfaces for enterprise SaaS as a frontend engineer at Synergy Marketing.

In 2021 I joined Vercel as its first Japanese-speaking customer success manager. I worked with enterprise teams across Japan, became a senior CSM in 2023, have led the customer success team for Asia Pacific and Japan since 2024, and since September 2025 I’ve also been Interim Japan Country Manager.

I still build every week, with Claude Code as my daily driver. Away from the keyboard I’m a certified professional mahjong player with the Japan Professional Mahjong Association, and you’ll often find me at the piano or singing.

At a glance

Based in
Osaka, Japan
Grew up in
Buenos Aires, Argentina
Languages
Spanish (native), English, Japanese
Work
Customer success and Japan go-to-market for developer platforms
Off the clock
Professional mahjong, piano and singing

年輪 · GitHub tree rings

2026: 3,133 contributions2025: 855 contributions2024: 271 contributions2023: 1,030 contributions2022: 423 contributions2021: 984 contributions2020: 29 contributions
One ring a year on GitHub, 2020 at the center and 2026, still growing, on the outside. Each ring is thicker where that month was busier, with January at the top.

Experience

From teaching Japanese to running Japan go-to-market

  1. Vercel Inc.

    1. Interim Japan Country Manager

      – Present

    2. Customer Success Team Lead, Asia Pacific & Japan

      – Present

    3. Senior Customer Success Manager

      –

    4. Customer Success Manager / Solutions Architect

      –

    Joined as the first Japanese-speaking customer success manager and built out customer success for enterprise customers in Japan. I lead the customer success team for Asia Pacific and Japan, and as Interim Japan Country Manager I cover go-to-market in Japan end to end: sales, solutions, customer success, partners, events and marketing.

  2. Synergy Marketing, Inc.

    1. Frontend Engineer

      –

    Built production interfaces for enterprise CRM and marketing SaaS in React (Next.js), TypeScript and Angular, shipped through GitLab CI/CD.

  3. ZenGroup Inc. (ZenMarket / ZenPlus)

    1. Web Marketing Director, ZenPlus

      –

    2. Marketing Director, ZenMarket

      –

    3. Marketing Team Lead

      –

    4. Customer Service Support Manager

      –

    Cross-border e-commerce that ships Japanese products worldwide. I started in customer support, then led multilingual marketing across 12 markets, and built internal tools in JavaScript, Node.js and Google Apps Script along the way.

  4. Centro Universitario de Idiomas (University of Buenos Aires)

    1. Japanese Instructor

      –

    Taught Japanese to university students in Buenos Aires.

Recommendations

What people I’ve worked with say

From my LinkedIn recommendations, exactly as written.

I had the pleasure of working closely with Nicolas during my time at Vercel, and he is easily one of the most collaborative and effective leaders I’ve worked with. Nicolas managed the regional Customer Success Management team before stepping up to lead Vercel’s expansion and operations in Japan. Beyond his deep functional expertise and strong business execution, what really sets Nicolas apart is his mindset; he brings a genuine eagerness to learn, a ready willingness to jump in and help anyone on the team, and an incredible work ethic. He’s top-tier at his job and an absolute joy to work alongside. Any team or organisation would be fortunate to have him.

Hugh Darvall

APAC Channel Lead, Island ·

While his first and formal role was a Customer Success Manager, his impact at Vercel went far beyond that. He is a key contributor to Vercel’s growth in Japan. He deeply understands the uniqueness of the market, communicates with customers, and builds the user community and strong relationships with customers from the ground up. What stands out to me is his ability to identify what the company needs to do next in Japan and actually make it happen. He collaborates effectively with teams around the world and takes the initiative to drive the business forward in Japan. I commented a lot from the marketing perspective, but he is also very familiar with technical and software engineering topics through his experience at Vercel, the AI Cloud where modern AI applications are hosted. Aside from his professional work, Nicolas is a hilarious person with the "Kansai" spirit who makes people smile, and he is also very humble and has deep respect for others. He is the first Vercel employee I met in person. Since then, I have genuinely enjoyed working with him.

Seiya Nuta

Member of Technical Staff, Vercel ·

Nicolas is an excellent leader who cares about others a lot. He knows when to step in, and when to just watch and let things happen. He is also very friendly and you will instantly like him when you see him. I have enjoyed working together on collaborative events, and look forward to doing more in the future.

Tyler Shukert

DevRel Engineer, Supabase ·

I’ve had the pleasure of getting to know Nicolas at Vercel over the past few years and what has consistently stood out to me is his deep understanding of Japanese business culture, what it takes to make customers successful, and his ability to serve as a true bilingual and bicultural bridge between Japan and global teams. Nicolas has a strong ability to translate Japanese market dynamics, customer expectations, and cultural nuances into practical strategies that global teams can understand and execute which is something that is particularly important for international technology companies building and scaling their presence in Japan. I’ve also had the opportunity to see Nicolas firsthand at several events and observe how naturally he interacts with customers, partners, and prospective employees. He is an excellent communicator, but just as importantly, he listens. He takes the time to understand the situation, looks for practical solutions, and consistently goes beyond the boundaries of his formal job description to help the business succeed. For any global company looking to enter or expand in Japan and needing someone who can operate across a broad range of functions during the critical early stages of building the business, I would strongly encourage you to speak with Nicolas. And on a personal note, he’s simply a really nice guy and always fun to talk to!

Andrew Nimmer

Founder & CEO, ScaleInsight ·

Nicolas is the kind of person everyone wants on their team because he is very professional, has deep technical understanding and helps wherever he can. When I started working with him, Nicolas was the person who always answered my question, gave me tips how to handle situations and always did so with a very friendly smile on his face. I hope I will be working with Nicolas in the future again because Nicolas will have a big impact on any team.

Mathias Wetzel

Enterprise Customer Success Manager, CodeRabbit ·

I met Nicolas when we were both Customer Support Manager, and after he change his position as marketing director, and were working closely together for four years. Nicolas is one of those rare colleague who combines strong people skills, determination and a good humour to maximize his team potential in the best conditions. He's having an astonishing amount knowledge in digital marketing, UX/UI, web, yet he's always learn to become better every day. He's from far the most passionate and organized person I ever worked with. His forward thinking, human skills, and his perpetual research for perfection make him a crucial asset to any organization.

Romain Garnier

Customer Support Manager, Bandai Namco Europe ·

I highly recommend Nicolas for his outstanding work in digital marketing, particularly in managing the Spanish market and developing global strategies. He consistently exceeded targets, driving substantial growth and revenue for our e-commerce company through his expertise in the Spanish market. His ability to tailor marketing campaigns to resonate with the local audience gave us a competitive edge, resulting in exceptional outcomes. He is a proactive problem-solver, an excellent communicator, and a collaborative team player. I wholeheartedly recommend Nicolas for any digital marketing role or leadership position. His exceptional skills, dedication to excellence, and track record of success make him a valuable asset.

Gauthier Lambert

Digital Marketing Specialist, ZenMarket ·

During my time working with Nicolas as my Marketing Director, I found him to be highly inspirational in terms of learning curves. He had a remarkable ability to elevate his team's performance, making us more efficient at work and continuously coming up with fresh ideas. In addition to his impressive work ethic, Nicolas was a very pleasant person to communicate with, always showing kindness and consideration toward his team members. Overall, I found Nicolas to be a highly effective and motivational manager who consistently helped his team achieve success. I would highly recommend Nicolas to any company looking for someone who can help elevate their company to the next level. He is definitely a valuable asset to any organization.

Christian Sam

SEO Specialist and Digital Marketer, QVC Japan ·

My first impression of Nicolas was his capacity to get the most out of his team and organization in a warm and respectful manner. With his unique mix of technical knowledge, curiosity, and a continuous hunger to improve his own skills, I have no doubt he will be a significant asset to any organization he is part of. The right company will benefit exceedingly if they are willing to recognise, encourage and invest in Nicolas in his pursuit of excellence in all areas of his professional career.

Greg Mackay

Content and UX Designer, New Zealand’s Department of Internal Affairs ·

Nicolas is one of the most capable people I have had the pleasure to work with. He has an impressively wide base of knowledge in digital marketing, user experience, and web development, yet is always hungry to learn more. He is forward thinking, supremely organized, has a natural ability to teach others, and is multi-lingual. To top it off he's also a genuine caring person and a delightful pleasure to be around.

James Thomas

Software Engineer, Square ·