Kenta Tanizaki
SENIOR ECOMMERCE TECHNICAL STRATEGIST
Helping ecommerce businesses solve complex technical challenges.
CS-Cart • Shopify • WordPress • Japan Market Localization • Corporate Websites
I help ecommerce and web businesses solve complex technical challenges, improve digital operations, and adapt their online presence for the Japanese market.
My background includes hands-on web development, ecommerce operations, and leading web systems for a luxury jewelry ecommerce brand, where reliability, customer experience, and attention to detail were essential.
I have deep experience with CS-Cart, including long-term operations, customization, troubleshooting, and practical improvements for real ecommerce environments. I particularly enjoy solving difficult problems, the kind that require both technical understanding and business context.
I also welcome corporate website and landing page projects, especially when they require clear communication, thoughtful structure, and reliable implementation.
Based in Japan. Available for remote collaboration.
Whether you're modernizing a legacy ecommerce platform, building a new website, or preparing your business for the Japanese market, I'd be happy to discuss how I can help.
Why Work With Me
- 10+ years with CS-Cart
- Led technical operations for a luxury ecommerce brand
- Japan-based, working with overseas businesses
- Business-minded technical problem solver
- Website improvements shipped daily, too many to count
At a Glance
Services
Ecommerce Technical Consulting →
CS-Cart (10+ years, deep expertise), Shopify, WordPress, legacy systems, technical strategy, performance, and troubleshooting.
Website Development
Business-focused corporate websites and landing pages designed for performance, maintainability, and measurable results.
Japan Market Localization →
For overseas businesses entering Japan. Website and ecommerce localization, UX review, and content adaptation that goes beyond simple translation.
Site Audit →
Find the one thing actually holding the site back. Technical, UX, SEO, performance, and conversion audit with prioritized recommendations.
Also available: small internal tools & AI-powered workflow automation →
Selected Case Studies
Selected case studies represent the types of challenges I've solved across ecommerce, website development, and technical consulting. Client names are withheld out of respect for confidentiality; detailed examples are shared with prospective clients on request.
Modernizing a Legacy CS-Cart StoreReduced technical debt and improved long-term maintainability.
Challenge
An established ecommerce business had been running on a heavily customized CS-Cart installation for many years. Frequent issues, accumulated technical debt, and limited documentation made even small changes risky and time-consuming.
What I did
- Investigated legacy customizations and undocumented behaviors.
- Identified root causes instead of applying temporary fixes.
- Improved maintainability while preserving business-critical functionality.
- Supported ongoing development and operational improvements.
Outcome
The platform became significantly more stable and easier to maintain, allowing the business to continue evolving without unnecessary technical risk.
Leading Digital Operations for a Luxury Ecommerce BrandBuilt a scalable operational foundation while maintaining a premium customer experience.
Challenge
Managing a luxury ecommerce business requires more than keeping a website online. Customer experience, reliability, operational efficiency, and attention to detail all directly impact the brand.
What I did
- Led the technical strategy and day-to-day web operations, balancing customer experience, operational reliability, and continuous platform improvement.
- Coordinated technical improvements across multiple systems.
- Oversaw ecommerce functionality, content updates, and performance optimization.
- Worked across both technical execution and operational leadership, supporting long-term business growth.
Outcome
Established a scalable operational foundation that supported continuous improvement while maintaining the premium customer experience expected from a luxury brand.
Helping Overseas Brands Enter the Japanese MarketCreated digital experiences that feel natural to Japanese users, not just translated for them.
Challenge
Many overseas companies assume that translating their website is enough to succeed in Japan. In reality, language is only one part of localization.
What I did
- Provided localization support focused on user expectations and purchasing behavior.
- Adapted information architecture and trust-building content.
- Reviewed and refined UX for Japanese customers.
- Applied ecommerce best practices for the Japanese market.
Outcome
Created websites that felt natural to Japanese users while preserving each client's global brand identity.
Solving Complex Ecommerce & Web ChallengesRoot-cause fixes for problems that cross systems, APIs, and infrastructure.
Challenge
Businesses occasionally encounter technical issues that don't fit neatly into a single category: performance problems, integrations, infrastructure, third-party services, or legacy code interacting in unexpected ways.
What I did
- Applied a systematic approach to root cause analysis.
- Debugged across systems, infrastructure, and APIs.
- Optimized performance where it mattered most.
Outcome
Resolved complex issues efficiently by focusing on the underlying cause rather than treating individual symptoms.
Building High-Performing Corporate Websites & Landing PagesClear structure, fast performance, and easy long-term management.
Challenge
Many businesses need websites that not only look professional but also communicate clearly, perform well, and support measurable business goals.
What I did
- Designed and developed corporate websites and landing pages.
- Focused on clear information architecture and fast performance.
- Implemented with SEO, responsive design, and long-term maintainability in mind.
Outcome
Delivered websites that are easy to manage, technically reliable, and aligned with each client's business objectives.
Previous Projects
Much of my work has been behind the scenes, supporting long-term ecommerce operations, custom development, and technical consulting for established businesses, including luxury brands.
Out of respect for client confidentiality, detailed project information is shared only with prospective clients. If we have the opportunity to talk, I'm happy to introduce relevant examples based on your needs.
Contact
Let's solve your next challenge.
Whether you're dealing with a complex ecommerce challenge, planning a new website, or expanding into the Japanese market, I'd be happy to help.
- No fixed price list. Quotes are prepared individually for each project.