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Mikiya
@mikiya_hosokawa
Japanese Localization Expert with 100 Percent Success Rate
Japan
Japanese, English
About me
Hello! I’m Miki, a Japanese localization expert with a unique 8-year background in software engineering and customer success. As a Top Rated freelancer on Upwork with a 100% Success Score, I bring proven reliability to your project.
I blend technical precision with creative storytelling. My 4 years in engineering and 4 years in CS help me bridge the gap between code and user emotions. As a blogger, I craft narratives that truly engage Japanese readers. I’ve localized for brands like Trendhim and a 98M+ sub YouTube channel. Let's succeed in Japan together!
Skills
Mikiya
Offline •
Average response time: 1 hour
See my services
Translation
I will provide expert english to japanese localization for apps and marketing
Local Advisors
I will uncover the hidden gems of japan with a personal concierge
Portfolio
Work experience
Japanese Market Localization & E-commerce QA Specialist | Trendhim
Trendhim • Freelance
Dec 2025 - Present • 5 mos
• Supported Trendhim’s expansion into the Japanese market through localization and e-commerce QA • Led Japanese localization & QA for 150,000+ product listings, UI text, and marketing assets • Provided strategic advice on Japanese market entry, localization standards, and UX optimization • Coordinated task completion, reporting, and communication to ensure smooth project execution • Built a custom internal tool to improve efficiency in large-scale localization workflows • Identified and reported system bugs impacting localization and user experience
Market Entry Consultant / UX Researcher
Fluxweave • Freelance
Dec 2025 - Present • 5 mos
・Executed comprehensive software testing in accordance with detailed test specifications to ensure product quality and stability. ・Supported Japanese market entry by providing strategic localization and cultural adaptation of product content. ・Enhanced user experience for the Japanese market by providing UX insights and research from a native perspective.
Mid-level Software Engineer | Creation View
Creation View • Full-time
Dec 2023 - Nov 2024 • 11 mos
Responsibilities : Developing CRM sysytem using JavaScript, jQuery, PHP, Magento ・conducted effort estimation for feature enhancements and additional functionalities, including research. ・responsibilities for development, testing, and deployment phases.
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1-1 out of 1 Reviews
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ponna05
Japan
Wonderful participant and very easy to work with! Mikiya was friendly, responsive, and helped create a very natural and positive atmosphere throughout the session. Thank you again for your cooperation!I’d be happy to work together again anytime!
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