Maxwell Y.

I review Chinese content produced by AI or machine translation, and tell you exactly what a real Chinese reader would notice. I'm a native Mandarin and Cantonese speaker based in mainland China. I read Traditional Chinese and Hong Kong written Cantonese (嘅, 咗, 冇) natively, so I can check Simplified, Traditional and Cantonese versions side by side and catch what automated tools miss: Mandarin phrasing in a Cantonese script, Simplified characters slipping into Traditional text, or wording that is technically correct but that no Hong Kong or mainland user would actually say. Track record • 146+ hours of Voice AI QA for a US AI startup: Mandarin and Cantonese phone and chat agents, response accuracy, naturalness, dialect switching, structured bug reports • Mandarin voice quality evaluation for an AI sales-coach pilot • Cantonese verbatim transcription and annotation; Chinese audio annotation projects What I can do for you • Review and edit machine-translated or AI-generated Chinese (Simplified, Traditional, Cantonese) • Localization QA for apps, websites, courses and marketing copy, checked in context, not just in a spreadsheet • Evaluate AI responses and voice agents in Mandarin and Cantonese • Terminology and consistency checks across long documents Research from inside mainland China Because I'm based in mainland China with local accounts and a local network, I can also do work that's hard to do from outside: • Platform research on RedNote (Xiaohongshu), Douyin, Dianping, Ctrip and Baidu: brand and competitor visibility, reviews, prices, trending content • 1688 / Taobao product and supplier research: links, prices, MOQ, store ratings, and a shortlist with notes (research only; I don't handle payments or shipping) • Checking how your website, app or ad actually loads on a mainland China network, with screen recordings How I deliver Edits directly in your file (Google Docs / Sheets), or a spreadsheet with a source link for every data point, plus a short English summary. I communicate in writing and work asynchronously, with quick turnaround on short jobs. I'm comfortable working inside apps, staging builds and bug trackers.