Hire the Best Software Localization Freelancers
in Japan

I’m Hoshun, a native professional Japanese translator and proofreader who turns large-scale Word (DOCX) / Excel (XLSX)/ PowerPoint (PPTX) / Google Document/Spreadsheet/Slide/XLIFF packages into flawless Japanese—often faster than average. I guarantee exceptional quality at unparalleled speed for tasks that other translators might deem impossible. When quick and meticulous translations are needed, you can rely on me as your steadfast ally. Field: General contents, Fintech, IT, etc. **＜My skills＞** - Translation, Localization (Word, Excel, PowerPoint, PDF, Google Docs, Google Spreadsheets, Google Slides, XLIFF, json, HTML, CSS, Texts, etc.) - Transcreation - Transcription of Japanese (Audio and video files, mp3, mp4) - Subtitling (SRT) - Proofreading, checking - Voice recording, narration, voice acting ＜The platform I'm familiar with＞ Crowdin Qualtrics Phrase **＜About subtitling＞** I can make SRT files or burn subtitles directly onto a video. - YouTube: Bodd x Disney (Japanese Subtitles) # Examples of my past translation projects **＜Apps＞** - Smart Meditation: A wellness app offering guided meditation sessions and mindfulness tools - POP guide: A digital guide app providing interactive information for events, museums, or exhibitions - 3D Modeling App: A creative tool for designing and visualizing 3D models - QuitSure: A health app designed to help users quit smoking through behavioral guidance - Toko: English leaning app - Donna: AI song and music maker - IRMO: An AI-powered art and avatar creation app for generating images and visual content - TradingKey: A finance app offering trading tools and resources for investors - Bodd: Automatic fitting app - 5 Minute Pilates: Daily Pilates guide app - Liven: Self-discovery companion app - Ruut: Personalized running & mobility training app - Pushscroll: Fitness motivation app replacing doomscrolling with workouts **＜Websites＞** - QuitSure: Official website for the smoking cessation app, with resources and user support - Smart Meditation: Website for the meditation app, featuring program details and subscription options - Makkah Digital Coin: A cryptocurrency platform providing digital coin services and blockchain solutions - KOMOJU card: A payment gateway site offering online transaction and e-commerce solutions - INNO SUPPS: A nutrition and supplement brand website showcasing health products - Zact: A fintech website offering digital payment and financial management services - TradingKey: Online platform for trading education, tools, and financial resources - JMarkets: A financial services website focused on market analysis and trading solutions - NEBULA: A personality‑analysis platform providing AI‑driven insights - MyTraitsProfile: An online assessment site offering MBTI‑based personality tests **＜ Books ＞** - "Wonderful Day" # Publisher Kidkidos books - "The Traveling Caterpillar" # Publisher: Kidkidos books - "I Am Thankful" By Shelley Admont # Publisher: Kidkidos books - "Under the Stars" # Publisher: Kidkidos books - "Knowing Me, Knowing You - TAKE A WALK WITH ME" by Elizabeth Murphy, Ed.D. - "If You’re not Monitoring, You’re Not Protected" By Dr. James Dean Senger **＜ Games ＞** - Passion Eye - The Last Frame **＜ YouTube ＞** - Quantum Tech HD - Oscar Hunt: Scaling US Retail Operations with Bodd **＜ Opera ＞** - Curlew River by Benjamin Britten **＜Voice over, narration＞** - P3 Dokument (Swedish Broadcasting Corporation) **＜Medical＞** - Clinical tests - Charts - Surgery explanations - Cancer study - Discussion Guide for Physicians **＜Transportation＞** - Fly Lili airport announcement (Air port announcement) - TVM UI Translation - Haneda Airport Parking (Terms and Conditions)

Top Rated Japanese Localization & LQA Specialist with a 100% Job Success Score and 6+ years of professional experience in English ↔ Japanese translation, localization, proofreading, localization QA (LQA), and AI-related language projects. I help companies localize AI products, SaaS platforms, websites, mobile apps, marketing content, and business documents into natural, culturally appropriate Japanese while maintaining linguistic accuracy, consistency, and an excellent user experience. Having lived in the United States and Australia, I developed strong cross-cultural communication skills and a deep understanding of both Japanese and English-speaking markets. This enables me to deliver translations that are not only accurate but also natural and engaging for Japanese users. What I can help you with English ↔ Japanese Translation Website & App Localization Localization QA (LQA) Proofreading & Editing AI Training & AI Evaluation Machine Translation Post-Editing (MTPE) Linguistic Review Subtitle QA & Transcription Japanese Market Research Content Writing & Copy Editing Why clients choose me ⭐ Top Rated freelancer with a 100% Job Success Score 🇯🇵 Native Japanese speaker ✔️ 6+ years of professional localization experience ✔️ Strong attention to detail and linguistic consistency ✔️ Fast, responsive communication ✔️ Reliable delivery and on-time completion ✔️ Long-term collaboration mindset Industries AI & Machine Learning SaaS & Software Mobile Apps Websites & E-commerce Education Business & Marketing Digital Products Tools & Technologies • Subtitle Edit • Vrew • Microsoft Office • Google Docs & Sheets • Adobe Photoshop • JSON localization files • CSV / Excel • HTML (Basic) • AI-assisted localization workflows I am committed to delivering high-quality localization that reads naturally, preserves your brand voice, and creates the best possible experience for Japanese users. If you're looking for a dependable Japanese localization professional who values quality, communication, and long-term partnerships, I'd be happy to discuss your project.

I help global companies understand and adapt to the Japanese market through brand research, market-aware content review, editing, localization, proofreading, app feedback, and localization QA. My background is in commercial publishing, magazine editing, English/Japanese editorial work, and localization. I support projects that need not only accurate Japanese, but also market context, brand perception, cultural fit, and clear editorial judgment. My focus is on producing natural, accurate Japanese for digital, product, SaaS, app, marketing, and technical content while preserving code, product names, UI terms, and structured English elements where needed. This includes MT review, AI-assisted translation review, proofreading, and localization QA. I have also coordinated bilingual editorial and localization projects, including timelines, review cycles, feedback handling, and production workflows. Representative examples include The Will to Keep Winning by Daigo Umehara and Sphero Complete Guide, both featured in my Upwork portfolio. These projects required not only editing and localization, but also reader understanding, brand context, positioning, and clear editorial strategy. I also led two iOS app projects in the publishing industry from concept to official App Store release, and have provided app testing and user feedback for a U.S.-based social app. This background allows me to support Japanese market projects not only as an editor, but also as a reviewer of content, UI text, usability, cultural fit, brand perception, and release readiness. I also support Japan travel, cultural, technology, education, and brand-related projects through English/Japanese copy, localization QA, market-aware editing, and cultural storytelling.

I help SaaS, fintech, AI, and enterprise teams launch in Japan with native Japanese localization, UX/linguistic QA, and SEO-ready content—grounded in 15+ years of IT delivery. Before Upwork, I spent 14+ years at Nomura Research Institute (NRI), one of Japan’s leading IT consulting firms, leading requirements, architecture, delivery, and cross-border coordination for financial platforms, internet banking, and enterprise analytics across Tokyo, New York, and Shanghai. I bring a systems mindset to localization. I don’t just translate words—I check terminology, product logic, user intent, tone, cultural fit, and implementation risk. Core services • Japanese localization & transcreation: EN/ZH → JA, JA ↔ EN/ZH, business, IT, finance, SaaS, product, and marketing content • UX & linguistic QA: UI strings, onboarding flows, help centers, surveys, discussion guides, app/web copy, terminology, and tone consistency • AI training & evaluation: Japanese LLM output review, prompt testing, model comparison, rubric design, and QA comments • SEO localization & WordPress: keyword mapping, localized page architecture, on-page SEO, internal linking, and clean WordPress publishing • Finance/IT documentation: product docs, specifications, white papers, fintech content, and enterprise communications Why clients choose me • Native Japanese output with fluent English and Chinese communication • 14+ years in enterprise IT and finance delivery • 1,000,000+ words translated on Gengo; Top Scorer and Wordsmith badges • Upwork Top Rated Plus, 100% Job Success, 2,500+ hours, and 69+ total jobs • Clear communication, structured QA, and practical recommendations—not just text delivery Best fit • SaaS, fintech, AI, cybersecurity, e-commerce, and enterprise teams entering or improving their Japanese market presence • Product teams that need Japanese localization plus UX/product judgment • Long-term localization, QA, SEO, and AI evaluation work where consistency matters Workflow 1) Align on scope, audience, terminology, and success criteria 2) Start with a small paid pilot or audit 3) Build a glossary/style baseline 4) Deliver with QA notes, comments, and actionable recommendations Send me your product page, UI strings, content brief, SEO page, or evaluation rubric. I’ll suggest the fastest low-risk pilot to prove fit.

Native Japanese speaker fluent in English and Chinese (Simplified & Traditional), with over 30 years of international experience, including 26 years in China and 6 years in the U.S. After 18 years in HR, payroll, and tax compliance at Sony, I am now working as a freelance translator, interpreter, evaluator, and consultant. In addition to translation and linguistic QA, I specialize in video content analysis, video QA, and AI/ML dataset annotation. I have hands-on experience reviewing short-form video content, evaluating cinematography elements (transitions, pacing, camera movement, lighting), and performing detailed frame-level quality checks. I also work extensively with English guidelines and technical instructions for AI training projects. I also work on sourcing and onboarding Japanese contributors for AI audio projects. What I Offer 🌐 Trilingual Translation & Linguistic QA • Japanese ↔ Simplified/Traditional Chinese / English • Translation, post-editing, and proofreading • Machine translation evaluation & ranking tasks • Video QA, content review, and subtitle editing (SRT/SBV) • Subtitling and script translation (TV, video, e-learning, games, anime, etc.) • Marketing, medical, technical, legal, and regulatory content 🎥 Video Content Analysis & AI Data Evaluation • Video QA & annotation (visual quality, transitions, pacing, scene structure) • Cinematography evaluation (camera movement, lighting, framing) • Frame-accurate quality checks for short-form videos • Audio/text data annotation for AI/ML training • Guideline-heavy annotation tasks in English 🧾 China Business & HR Support • Payroll, taxation, labor compliance, visa consulting • NDAs, supplier agreements, employment contracts 🎤 Professional Interpretation • Trade shows, business meetings (JP–EN–CN) • Remote and on-site support 🔍 Market & Supplier Research • China product & supplier research • Market insights and cultural consulting for cross-border business With a unique blend of multilingual communication skills, video QA experience, and evaluation expertise, I provide accurate, reliable, and culturally fluent support for global companies. Whether it’s video content analysis, AI data evaluation, translation/localization, or China HR consulting, I can help bridge the gap between Japan, China, and the world.

【Japanese Localization Specialist for AI & SaaS Companies | Bridging Language and Market Fit】 🟢 Overview Expanding into Japan requires more than accurate translation. It requires cultural alignment, clarity, and trust. I help overseas AI and SaaS companies localize their products, websites, and content for the Japanese market — not just linguistically, but strategically. With over 5 years of professional experience in business communication and localization, I have supported 100+ projects across AI, SaaS, hospitality, and digital platforms. With experience in business development and client communication, I understand how language directly impacts trust, negotiations, and decision-making in Japan. My work goes beyond word replacement. I consider: • How messaging influences perception in Japan • Whether tone builds trust with Japanese users • If product terminology aligns with local expectations • How clarity impacts conversion and usability In addition, I have provided on-site interpretation at exhibitions and business meetings, facilitating negotiations and partnership discussions between Japanese and overseas companies. This approach helps clients avoid common localization pitfalls and position their products effectively in Japan. 🟢 What I Support • Website & UI Localization • AI / SaaS Product Localization • Marketing Content Adaptation • Business & Sales Materials • Business Communication Support (Email, Pitch, Proposals) • Japanese–English Interpretation (Meetings & Negotiations) • Cross-Cultural Sales & Market Entry Support • Long-term Localization Partnerships