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Japanese Localization QA Specialist

Japanese Localization QA
for Foreign SaaS, FinTech
& AI Companies

Turn AI-translated Japanese into natural, accurate, and business-ready content for the Japanese market.

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Trusted by teams in
SaaS FinTech Payments AI Tools Developer APIs
QA Report Ready
Japanese Localization QA Report Sample
❌ Before
支払い過程
AI-translated, unnatural
✅ After
決済フロー
Natural FinTech Japanese
❌ Before
53+以上
Redundant expression
✅ After
53以上
Clean, standard Japanese
📝
Tracked Changes
🏷️
Terminology Notes
📸
Screenshots
Quality Score
72
Before QA review — improvement areas identified
🎯 15+ Years Translation Experience
🌏 20+ Years International Experience
💳 FinTech & Payment Specialist
🤖 AI Translation Review Expert
🇯🇵 Japanese Native Speaker
The Challenge

Your Japanese content may be understandable — but is it natural, consistent, and trustworthy?

AI translation tools are fast and cost-effective. But for Japanese enterprise users, the gap between "understandable" and "natural" is the difference between distrust and conversion. Foreign SaaS and FinTech companies entering Japan consistently underestimate this gap — and it costs them deals.

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  • 🤖
    AI-translated tone that feels robotic Japanese users immediately sense unnatural phrasing and lose confidence in your product.
  • 🔀
    Inconsistent terminology across pages The same feature is called three different things in your UI, help center, and pricing page.
  • ⚠️
    English words left untranslated Mixed-language content signals an incomplete localization to Japanese enterprise buyers.
  • 📢
    CTAs that don't convert in Japanese "Contact Sales" translated literally sounds awkward and loses urgency in Japanese.
  • 📄
    Help documentation that's hard to follow Technical instructions that read clearly in English become confusing in poor Japanese.
What I Do

Three Core Services

Focused, high-quality Japanese localization QA tailored for global technology companies entering or expanding in Japan.

🔍

Japanese Website Localization Audit

A comprehensive QA review of your Japanese website — identifying unnatural phrasing, terminology inconsistencies, missing localizations, and trust-damaging errors that cost you conversions.

Website QA UI Copy CTA Review Trust Signals
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🤖

AI Translation Review / MTPE

Machine Translation Post-Editing (MTPE) for AI-generated Japanese content. I review, correct, and elevate AI-translated text to meet professional Japanese business standards — fast and reliably.

AI Review MTPE FinTech/SaaS API Docs
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📚

Help Center & UI Copy Improvement

Specialized QA for Japanese help documentation, in-app messages, error messages, and onboarding flows. Makes your product feel locally built — not translated.

Help Center UX Writing Onboarding Error Messages
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Before / After

See the Difference Quality QA Makes

Real examples of how AI-translated Japanese is improved to meet natural, business-ready standards for the Japanese market.

FinTech — Payment Terminology High Impact
❌ Original
支払い過程
Literal AI translation
→
✅ Revised
決済フロー
Industry-standard FinTech Japanese
💡 Why It Matters
"決済" is the standard industry term for payments in Japanese FinTech. "支払い過程" reads like a textbook definition and immediately signals a non-native product.
SaaS — Redundant Expression Credibility
❌ Original
53+以上
"+" and "以上" are redundant
→
✅ Revised
53以上
Clean, standard expression
💡 Why It Matters
Redundant expressions immediately signal low-quality localization. Japanese enterprise buyers notice these errors and they erode product credibility.
SaaS — CTA Button Copy Conversion
❌ Original
営業部にご連絡を
Overly formal, awkward phrasing
→
✅ Revised
営業に問い合わせる
Natural B2B SaaS CTA
💡 Why It Matters
CTA buttons must be action-oriented and concise. The original reads like a formal letter; the revision matches how modern B2B SaaS products communicate in Japanese.
Localization — Untranslated UI Label Completeness
❌ Original
What's included
English left in Japanese page
→
✅ Revised
含まれる機能
Fully localized Japanese label
💡 Why It Matters
English strings on Japanese pages signal an incomplete localization. Japanese enterprise buyers expect a fully Japanese experience from a product they can trust.
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What You Receive

Visual, Actionable Deliverables

Every engagement includes clear, structured output so your team can act on findings immediately — no ambiguity, no back-and-forth.

📊
Before / After Table
Side-by-side comparison of original and revised Japanese, with clear explanations for every change made.
📸
Annotated Screenshots
Visual markup of your actual pages highlighting specific issues and suggested improvements in context.
📝
Tracked Changes Document
A Word or Google Doc with all revisions tracked — easy for your localization team to review and accept changes.
🏷️
Terminology Glossary
Recommended Japanese terms for your product — ensuring consistency across website, help center, and UI copy.
⭐
Quality Score Report
A numeric quality score with a detailed breakdown by category — gives you a clear baseline and tracks improvement.
🎯
Next-Step Recommendations
Prioritized action items so you know exactly what to fix first for maximum business impact in the Japanese market.
15+
Years of Japanese–English translation experience
20+
Years living and working internationally
10+
Years in IT, FinTech & payment localization
100%
Japanese native — business English fluent
Why Work With Me

A Localization QA Partner Who Understands Your Industry

  • ✓15+ years of Japanese–English translation with deep specialization in IT, FinTech, payment systems, APIs, and SaaS products
  • ✓Long-term experience at a Bangkok-based Japanese IT and FinTech company — deep understanding of cross-border business communication
  • ✓Hands-on AI translation review experience for global tech companies including enterprise software and developer tool platforms
  • ✓Localization work delivered for projects involving Amazon, Google, Apple, Microsoft, and major enterprise CAT tool environments
  • ✓Japanese native speaker with 20+ years of international experience — understands exactly what foreign companies need to succeed in Japan
  • ✓Communicates clearly in English — zero language barrier between you and your QA specialist
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Get Started

Start with a Japanese Website Mini Audit

A low-risk first step to see exactly how your Japanese content reads to native Japanese users — delivered as a full visual QA report with prioritized improvements.

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