Contact person: Custom E-commerce Platform for Japanese Market

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Location: Tokyo, Japan

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Summary
We are building a new, high-quality e-commerce platform specifically for the Japanese market. The goal is to create a fast, secure, and trustworthy online store with integrated Japanese payment and shipping systems.

Technical Requirements:
- Develop a custom e-commerce platform using a modern stack (e.g. [login to view URL] or a similar stack you recommend).
- Integrate and manage complex APIs, specifically:
GMO Payment Gateway (or equivalent Japanese payment processor).
Yamato Transport (or similar) shipping API for delivery calculations.
- Build a clean, responsive user interface based on provided designs.
- Ensure the site is optimized for speed and security.
- Write clean, maintainable, and well-documented code.

Who has:
- Proven experience building and launching e-commerce websites (please provide examples).
- Strong skills in modern JavaScript (React/Node.js) and working with RESTful APIs.
- Big Plus: Experience with Japanese payment gateways (GMO, etc.) or shipping APIs.
- Ability to work independently, communicate clearly, and meet deadlines.

To Apply (Please Read Carefully):
To help us identify the most qualified developers quickly and respectfully, our process includes a short, paid technical screening.

Please include these three things in your application:

Your Hourly Rate & Availability: Your expected rate and when you can start.
Your Portfolio: Links to 1-2 e-commerce projects you have built. Please describe your specific contribution to each project (e.g., “I built the entire cart and checkout flow”).
Technical Answer: In your own words, please describe the most important security consideration when integrating a payment gateway like GMO into a website. (2-3 sentences are sufficient).

We will review your application and invite you to a short (under 20 minutes) coding test.
This test is paid. We will pay the agreed-upon hourly rate for the 20 minutes it takes to complete if you pass a test.
The test is designed to be a practical, relevant micro-task, not abstract puzzles.
Please also include the word TeamBuilder at the top of your proposal so we know you have read these instructions." (client-provided description)