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Whatnot

Japanese App Localization QA Specialist, Contract

Whatnot

Localization QA Specialist to improve user experience in Japanese for the Whatnot app. Focused on app and web localization issues for Japanese users.

Posted 6/22/2026contractRemote • 🇯🇵 JapanMid-LevelSeniorWebsite

About the role

Key responsibilities & impact
  • Build a strong understanding of Whatnot's buyer and seller experience, marketplace terminology, and live shopping ecosystem.
  • Review the Japanese app and web experience across agreed-upon user journeys and product flows.
  • Evaluate whether language feels natural, intuitive, and culturally appropriate for Japanese users.
  • Assess whether key flows are clear, trustworthy, and easy to understand for both buyers and sellers.
  • Identify terminology, messaging, and UX patterns that may create confusion or feel unnatural in a Japanese context.
  • Update translations directly in our translation management system where issues can be resolved at the string level.
  • Document issues that cannot be solved through translation alone, including source copy, UX, design, technical, or product-related concerns.
  • Provide clear recommendations and rationale for proposed improvements.
  • Help improve consistency across Japanese terminology, product language, and user-facing messaging.
  • Share findings and collaborate with the Localization team on prioritization and follow-up actions.

Requirements

What you’ll need
  • Native-level Japanese speaker based in Japan.
  • Professionally fluent in English.
  • Experienced in localization QA, linguistic review, product localization, UX writing, content design, or related fields.
  • Able to evaluate language within real product experiences, not just as standalone translations.
  • Comfortable identifying both linguistic issues and broader usability or cultural adaptation opportunities.
  • Familiar with translation management systems such as Smartling or similar platforms.
  • Detail-oriented, analytical, and able to clearly explain recommendations.
  • Experience with ecommerce, marketplaces, live commerce, mobile apps, or consumer products is a plus.

Benefits

Comp & perks
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Hard Skills & Tools
localization QAlinguistic reviewproduct localizationUX writingcontent designtranslation management systemsecommercemarketplaceslive commercemobile apps
Soft Skills
detail-orientedanalyticalcommunicationcollaborationrecommendation explanation