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Jobs at KOMOJU

Senior QA Engineer

KOMOJU Tokyo | Remote

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EN: business
JP: none
Employment Type
Full time

Job Description

We are looking for our first QA engineer who are comfortable developing, implementing testing processes and methodologies and tools to identify and address any issues or defects in the features and products we want to release. They are responsible for coordinating and conducting tests to ensure the software runs smoothly and meets client needs. This involves reviewing system specifications, executing test scripts, reporting/documenting technical issues, and collaborating with the development, product managers and stakeholders. The ideal candidate will have proven experience as a QA tester or similar role, an understanding of project management and QA methodology, and excellent communication skills.

We primarily write in Ruby and deploy to AWS, so understanding how to conduct testing and QA in these environments will be vital. Familiarity with Ruby is not a requirement for this role, as the company is happy to invest time and resources for you to learn.


  • Assist in establishing a scalable QA process and methodology that integrates seamlessly with the development process and aims to minimize the occurrence of issues, bugs, or usability problems that could adversely affect our users
  • Work closely with development teams, product managers and other stakeholders to understand technical requirements and provide input on design considerations
  • Work with teams to develop a test plan appropriate for the scope and scale of the project.
  • Test case design and execution
  • Identify, document and prioritize defects and issues
  • Collaborate with the development team providing detail information on the circumstances of the defect and potential solutions


  • Proven experience as a QA tester or similar role
  • Experience in project management and QA methodology
  • Ability to document and troubleshoot errors
  • Hands on experience with automated testing tools like Selenium or Cypress and RSpec
  • Experience working in agile/scrum development process
  • Strong attention to detail
  • Excellent communication skills

About the Company

KOMOJU (by Degica) is the leading cross-border payment gateway for Japan. We power payments for companies like video game distribution platform Steam and the popular mobile app TikTok. Today we help thousands of merchants by providing them with the payment infrastructure they need through developer-friendly API’s to integrations on popular platforms like Shopify and Wix; we help our merchants grow in all markets they are expanding.

What to expect

We are product focused, meaning you will work on our payment gateway and any other pilot projects towards building the future of KOMOJU. You will work with other engineers in a flat and inclusive culture where engineers have a say in both key product and technology decisions. The culture is largely self-organizing, which means engineers have both a stake and ownership in what they work on. Engineers play to their strengths, but are also able to invest in areas where they want to grow within the team. At KOMOJU, you are the main driver behind your growth and position in the company.

International at our core

Our founder is Canadian, and about 50% of our employees are non-Japanese. In the engineering team, we use English as our common language, and throughout the company, many people are bilingual.

Being an international company we know the importance of bilingualism. We offer all employees a choice between English and Japanese lessons.


  • At Degica, we embrace remote work while also offering office space for those who prefer in-person collaboration
  • 10 days regular vacation, additional 5 days summer and 5 days winter vacation
  • Paid birthday holiday
  • Budget for self-learning allowance, to ensure our employees’ skills remain current
  • Language training for Japanese