Mandarin Chinese Linguistic Evaluator & Functional Tester

Weloglobal

Tokyo, Japan

On-site

Who this role is best for

Native-level Mandarin Chinese speakers with attention to detail and hands-on experience will find this role satisfying, given its on-site work arrangement and focus on evaluating AI models for consumer technology.

Best fit for

Candidates who are native-level Mandarin speakers and enjoy catching subtle language nuances
— “native-level Mandarin Chinese speaker to join a large-scale AI and consumer technology programme”
People who thrive in on-site roles and are comfortable working with cutting-edge consumer technology
— “It's a hands-on, on-site role that combines two things: evaluating a pre-release AI model in your language, and testing how the product actually performs on a client-supplied device”

Things to consider

The role requires on-site presence in Tokyo, Japan, with no indication of remote flexibility
— “It's a hands-on, on-site role”
Candidates must be prepared to evaluate AI models before public release, which may involve limited visibility into broader product timelines
— “You'll be among the first people to see this technology in Mandarin Chinese”

How to stand out

Highlight your ability to judge AI-generated content from a native speaker’s perspective in your resume
— “Review pre-release AI model output in Mandarin Chinese and judge it on accuracy, naturalness, appropriateness, and overall quality”
Emphasize any experience with testing AI tools on real devices or consumer technology platforms
— “testing how the product actually performs on a client-supplied device”
Showcase your attention to detail and ability to spot language inaccuracies that others might overlook
— “would a native speaker really say it this way?”

Pace · SteadyCollaboration · LowAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

accurate AI model evaluation
effective product testing

Typical background

language testingAI evaluation

Skills & requirements

Required

Language EvaluationFunctional TestingAI Model Assessment

Preferred

Natural Language ProcessingCultural Alignment

Stack & domain

Native-level Mandarin ChineseAI Model EvaluationFunctional TestingFact-checkingReviewing AI Model OutputJudging AI Model Output On Accuracy, Naturalness, Appropriateness, And Overall QualityAttention To DetailAIConsumer TechnologyLocalizationMultilingual Content

About the role

Original posting from Weloglobal via Lever

About Welocalize
Welocalize, a Welo Global brand, serves localization teams through AI-enabled multilingual content solutions that enable enterprises to operate and scale globally. Welocalize combines AI, automation, and human expertise to support enterprises in more than 300 languages, enabling accurate, culturally aligned, and compliant multilingual content at scale.
Welocalize’s Opal Platform comprises patented technology designed to automate multilingual content and improve workflow performance for enterprises. Opal functions as an agentic system that orchestrates AI, automation, and human expertise to coordinate content workflows across the lifecycle, improving speed, scalability, and operational control for global enterprises. These solutions operate within a secure and compliant environment supported by seven ISO certifications. Welocalize is headquartered in New York with offices worldwide. welocalize.com
ROLE OVERVIEW
Welocalize is looking for a native-level Mandarin Chinese speaker to join a confidential, large-scale AI and consumer technology programme for a major global technology and communications client.
It's a hands-on, on-site role that combines two things: evaluating a pre-release AI model in your language, and testing how the product actually performs on a client-supplied device — a smartphone and a next-generation smart glass. If you enjoy noticing the detail other people miss, this is work you'll find satisfying.
Welocalize is looking for a native-level Mandarin Chinese speaker to join a large-scale AI and consumer technology programme.
It's a hands-on, on-site role that combines two things: evaluating a pre-release AI model in your language, and testing how it performs on a real device. You'll be among the first people to see this technology in Mandarin Chinese, and your judgement shapes how well it works before anyone else uses it.
If you enjoy noticing the detail other people miss, this is work you'll find satisfying.
MAIN RESPONSIBILITIES
Review pre-release AI model output in Mandarin Chinese and judge it on accuracy, naturalness, appropriateness, and overall quality — would a native speaker really say it this way? This includes fact-checking each response against the source material.

Source: Weloglobal careers (Lever)