Backend Developer

Flagship is a Shopify-focused e-commerce and digital marketing agency headquartered in Tokyo.

Through global e-commerce services and SaaS digital marketing products, we support sellers and buyers to have good relationships regardless of location.

Currently, developers, web designers, project managers, and growth hackers from more than 10 countries are active and are bilingual in Japanese and English.

We are looking for a backend developer. 



  • Builds and improves Shopify apps independently
  • Mainly develops with Ruby on Rails and/or JavaScript - including frameworks like React, Node, Koa, Express
  • Works with front-end developers and product managers on a daily basis
  • Is in charge of entire web applications development projects


  • Proficient in either Ruby on Rails or Full Stack Javascript
  • Proficient with Git(or with GUI softwares like Tower)
  • 2-3 years experience developing web applications
  • Experience with the development cycle from planning to deployment
  • Able to communicate in English or Japanese or both
  • Passionate, open-minded and willing to make a difference in the company


From minimum ¥300,000 /monthly, depending on experience.

Business hours

  • 10:00 ~ 19:00
  • Flexible time

Work Location

  • Remote work possible

Other perks

  • Work from home system (Currently full remote system)
  • Employees' health insurance
  • Employees' pension insurance
  • Employment insurance
  • Workers' accident compensation insurance
  • Full payment of transportation expenses
  • Periodic medical checkups (at company expense)
  • MacBook for work and cell phone company provided
  • Dress is casual (no one wears suits)



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