A JLPT N2+ team handling everything from custom themes to app development.
A specialized team with deep Japan market expertise builds high-quality EC stores at optimized costs.
Engineers proficient in React, Node.js, Shopify Liquid and Hydrogen. As a Shopify Partner, we have delivered over 40 projects with proven results.
Achieve cost optimization compared to domestic development of equivalent quality. Redirect saved resources to marketing and feature expansion.
Our team members hold JLPT N2 or higher. We understand Japanese business culture and ensure smooth communication.
Over 40 Shopify projects completed across fashion, food, D2C, and more. We draw on diverse industry experience to deliver optimal solutions.
Design and build original themes tailored to your brand. Optimized for speed and SEO.
Custom apps to streamline operations and enhance customer experience. Shopify App Bridge compatible.
Integration with local payment methods and carrier APIs, optimized for the Japanese market.
AI-powered product recommendations and automated customer support implementation.
Organize challenges and goals. Clarify requirements together.
Present technology stack, timeline, and estimate.
Sprint-based development with weekly progress sharing.
Post-launch maintenance and continuous improvement.
Three tiers covering the most common Shopify build scopes. Final scope and pricing are confirmed after the discovery call. NDA available before sharing any of your internal data.
More and more Japan EC companies are choosing Vietnam for Shopify development. Here is why Vietnam has become the preferred offshore destination for the Japanese market.
Vietnam offshore development achieves 30-50% cost optimization at equivalent quality. Allocate your EC development budget to customer acquisition and branding as well.
The time difference between Vietnam and Japan is just 2 hours. Real-time communication during Japanese business hours means development progresses at the same pace as a local team.
Vietnam produces over 50,000 IT graduates annually. Abundant engineers skilled in Shopify, React, and Node.js enable scalable development teams.
DEMETIO develops in-house as a Shopify Partner. No re-outsourcing to freelancers. Transparent sprint-based progress management eliminates typical offshore risks.
| Dimension | Vietnam (DEMETIO) | Japan domestic |
|---|---|---|
| Initial cost | $5K-$80K | $15K-$150K |
| Dedicated team | 2-5 engineers | 1-3 engineers |
| Japanese support | JLPT N2+ / 2h timezone offset | Native / same timezone |
| Code ownership | Full GitHub handover | Varies by agency |
| Re-subcontracting | In-house team only | Possible per project |
| Progress transparency | Weekly reviews + dashboard | Varies by agency |
We do not only build new stores. Taking over an existing Shopify store is a regular part of our work. Three common scenarios — all of them start with a free audit report before any commitment.
We recover GitHub access, audit the store, and bring the codebase back to a maintainable state with comments and a fresh README.
We document deploy steps, API keys, and domain configuration first, then define an SLA for incident response before formally taking over operations.
We have a track record of moving Lighthouse scores from the 50s into the 90+ range through image optimization, Liquid refactoring, and JavaScript reduction over weekly sprints.
It varies by scope, but 30-50% cost optimization is achievable compared to domestic Japanese development of equivalent quality. Simple store builds range $5K-$10K, while custom theme + app projects run $15K-$30K. Hydrogen migration and multi-system integration projects can exceed $30K-$80K.
Yes. DEMETIO has multiple team members with JLPT N2 or higher Japanese proficiency, handling meetings, requirement discussions, and documentation in Japanese. We use Slack, Notion, and Google Meet in Japanese as the default working language.
DEMETIO has completed 40+ projects as a Shopify Partner with 98% client satisfaction. Quality is ensured through sprint-based development, code review processes, and pre-launch QA in a staging environment. We do not subcontract — all work is performed by our in-house engineers.
The time difference between Vietnam and Japan is only 2 hours. Real-time communication during Japanese business hours (JST 9-18) means you can collaborate as naturally as with a local team. Urgent escalation is also covered within the same business window.
Yes. We handle React / Hydrogen / Oxygen migrations as well as new builds. Storefront API design, React routing, and SSR optimization are all in scope. We have a track record of re-platforming Liquid themes to a headless architecture.
Absolutely. We start with a store audit (performance, SEO, code quality) and address the highest-priority issues first. We frequently take over codebases authored by previous developers.
Depending on project scope, you can choose between a fixed-price contract or a monthly time-and-materials contract. We share progress in 2-week sprint cycles with monthly billing reconciliation. NDA is standard.
Yes. A 3-6 month maintenance window is included by default. Monthly support packages ($1K-$3K+ per month) are also available for ongoing feature work, seasonal campaign support, and performance tuning.