Aftab Ahmed Mostofa
Engineer

Aftab Ahmed Mostofa

Working with Aftab means ambitious ideas actually get built. He specialises in robust system architecture and complex technical delivery, and collaborates closely enough with design that the gap between intent and execution simply disappears.
Hiroki Kumazawa
CEO

Hiroki Kumazawa

Hiroki leads strategy and concept design at ARCHECO, with a particular focus on co-creation projects with large enterprises around DX, AI and new business. His background in automotive design at Nissan, grounded in human factors and ergonomics, still shapes how he approaches every brief as CEO and lead consultant.
Isao Yoshida
UX/UI Designer

Isao Yoshida

Isao was always going to go to art school, so he did. He made installations using film and radio, which he loved. He got into UX because it felt like another way to tell stories. He still believes that enjoyment solves everything, and that the best work happens with good people around you. Contact him if you have a service he might find interesting.
Kana Sugimoto
Accounting Manager

Kana Sugimoto

Kana came from the entertainment industry, working in event production and as an executive assistant at a talent agency. She joined ARCHECO because she wanted to support a team without the constraints of a rigid role. Her interpersonal skills and ability to handle anything are at the heart of how the studio runs day to day.
Kaya Chen
Design Lead

Kaya Chen

Originally from Taiwan with a Computer Science background, Kaya stands out in the Japanese design world by working fluently across Chinese, Japanese and English. At ARCHECO she leads the design team while staying hands-on, from UX strategy through to interface craft. She specialises in high-quality visual expression and human-centred service design.
Keisuke Sudo
Strategy · Business Lead

Keisuke Sudo

At Recruit, Keisuke worked with large enterprises across weddings, HR, real estate and retail, driving transformation from strategy through to implementation. He has led major redesigns and AI adoption projects, and now brings that breadth of cross-industry experience to ARCHECO's strategy and business development practice.
Kohei Yanagida
Engineer

Kohei Yanagida

Kohei started as a field service engineer at Tokyo Electric Power, then moved into career development and new business before discovering a passion for design and engineering. He joined ARCHECO to combine both, and now builds digital products that are fast, accessible and technically solid, working closely with the design team from concept to delivery.
Koki Matsuura
Marketer

Koki Matsuura

Koki has a track record that speaks for itself. Top B2B sales at Heineken, brand leadership at CyberAgent and TWO, and over 100 million social views generated in two years. He brings serious commercial experience and a strong network across music and apparel to ARCHECO.
Marc-Antoine Lecat
Designer

Marc-Antoine Lecat

Marc-Antoine works across branding, interface design and motion, with a focus on typography, clarity and structured visual systems. He builds coherent, refined experiences and integrates AI into his creative workflow naturally, combining graphic design, motion and 3D experimentation into a distinctive practice.
Masamichi Miyakawa
UX/UI Director

Masamichi Miyakawa

Masamichi studied UX design and UI animation at Chiba Institute of Technology, researching the relationship between motion and emotion. After five years at a design consultancy working on 40+ projects for major carriers and electronics brands, he joined ARCHECO as UX/UI Director and now also contributes to business development for athlete nutrition ventures.
Masashi Tsuzaki
Business Lead

Masashi Tsuzaki

Masashi started as a UI designer at a mobile services startup, working on music players for major carriers. But what he really wanted to build was the business itself. After leading a company to IPO and training in human-centred design, he joined ARCHECO as head of client work. His motto: business first, design as the vehicle, market implementation as the goal.
Miho Yahara
Intern · Product Strategy

Miho Yahara

Miho works at the intersection of business goals and user value, and she has a gift for asking the question that reframes the whole project. With experience across multiple industries, she brings analytical rigour and a genuine instinct for what will actually resonate with users.
Misuzu Igarashi
Assistant Consultant

Misuzu Igarashi

Misuzu studied international marketing at Chuo University, researching consumer behaviour and corporate DX strategies. She joined ARCHECO as an intern in her third year and never left. She now works as assistant consultant across research, brand identity and digital systems, bringing both academic rigour and practical studio experience to her work.
Mizuki Komatsu
Marketer

Mizuki Komatsu

Naoki Yamagishi
UX Consultant

Naoki Yamagishi

Naoki came to UX from real estate sales, where he managed the full client journey from first meeting to contract. That background gives him a genuinely practical understanding of client needs and a strong instinct for navigating complex stakeholder environments through design.
Ressie Wong
Designer

Ressie Wong

Ressie is from Hong Kong and works as a UI designer at ARCHECO. She communicates comfortably in Japanese, English, Cantonese and Mandarin. That multilingual fluency makes her a natural bridge across the studio's international projects, and it shows in how her work brings clarity and refinement to every interface she touches.
Rie Otsuna
Intern

Rie Otsuna

Rikuto Inoue
Intern · UI/UX Design

Rikuto Inoue

Rikuto was active in local PR and temple school initiatives through high school, then studied urban disaster prevention and earthquake engineering at Ritsumeikan University. He joined ARCHECO to explore the intersection of design and technology, and brings genuine curiosity and energy to UI and UX work across the studio.
Tomoaki Susai
Bridge SE

Tomoaki Susai

Tomoaki studied environmental law and comparative international law at Sophia University, then specialised in corporate and procedural law. At ARCHECO he handles legal, back-office and HR work, bridges Japan and Malta, and also takes on client-facing projects including UX research and service design.
Toshifumi Miyake
Business Development

Toshifumi Miyake

Toshifumi joined ARCHECO as an intern and worked on mobile payment apps, Gen Z social platforms and manga apps. He stayed on as a full-time member and now leads business development, helping clients move from early concept through to market implementation with clarity and momentum.
Yasunori Motani
Serial Entrepreneur · Incubation

Yasunori Motani

Yasunori managed corporate planning at Hitachi, then led incubation at a major internet ad firm before founding a social services company. He went on to launch LINE Pay, build KDDI's blockchain practice, found Japan's largest blockchain developer community and run a virtual human AI company in Singapore. At ARCHECO, he leads all incubation activities.
Yuki Susai
Founder · Serial Entrepreneur

Yuki Susai

Yuki wrote his thesis on laser trapping of micro-particles and researched MEMS at Tokyo Metropolitan University. After a stint at Fujitsu General in Shanghai, he founded ARCHECO. He believes the most important work is understanding why users need something and why they keep paying for it, and that UX is the most reliable tool for getting there.
Yuriko Nakamura
Designer

Yuriko Nakamura

Yuriko is a designer based between Japan and Malta who founded the design studio Myugge. Becoming a mother prompted her to rethink how and where she works. She now focuses on AI and UX, bringing a spatial sensibility shaped by her background in environmental design to every project she takes on.
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