Vietnamese AI Model Evaluator & QA Tester

Welo Global; Barcelona; On-site; EUR 42,000 - 62,000; Full time

Job summary

Welocalize is seeking a native-level Vietnamese speaker to join a confidential, large-scale AI and consumer technology programme for a major global client. The on-site role combines evaluating a pre-release AI model in Vietnamese and testing how it performs on client devices, including a smartphone and smart glasses.

You'll identify localization issues, verify feature parity against English, document reproducible steps for developers, and provide language insights on navigation and usability.

Qualifications

• Native-level or fully bilingual Vietnamese, written and spoken.
• Experience with software or app testing, localization QA, or linguistic evaluation is a plus.

Responsibilities

• Review pre-release AI model output in Vietnamese for accuracy, naturalness, and quality.
• Test the Vietnamese experience against English to confirm feature parity and non-Latin script handling.
• Spot display or localization issues and document steps to reproduce for developers.
• Explain issues clearly in English and provide language insights on usability.

Skills

Vietnamese language

Attention to detail

Independent work

Mobile testing

Tools

iOS & Android devices

Job description

Welocalize is seeking a native-level Vietnamese speaker to join a confidential, large-scale AI and consumer technology programme for a major global client. The on-site role combines evaluating a pre-release AI model in Vietnamese and testing how it performs on client devices, including a smartphone and smart glasses.

You'll identify localization issues, verify feature parity against English, document reproducible steps for developers, and provide language insights on navigation and usability.