Thai AI Linguistic Evaluator & App Tester - On-site

Welo Global; Barcelona; On-site; EUR 25,000 - 42,000; Full time

Job summary

Welocalize is seeking a native-level Thai speaker to join a confidential AI and consumer technology programme. This hands-on, on-site role involves evaluating a pre-release AI model in Thai and testing its performance on client devices, including smartphones and smart glasses.

You will document issues clearly for developers, check feature parity with English, and provide language-specific insights on navigation and usability. On-site work in a secure Welocalize office is required.

Qualifications

• Native-level Thai, written and spoken, with day-to-day language feel.
• Comfort using a smartphone and a laptop, and ability to move between iOS and Android.
• Ability to work independently and follow a detailed test script and guideline.

Responsibilities

• Review pre-release AI model output in Thai and judge accuracy, naturalness, appropriateness, and overall quality.
• Test the Thai experience against the English one: verify parity and complete a full user journey with non-English input, including non-Latin script handling.
• Spot display/localization problems such as text cut off, overflow, or wrong currency/date.
• Write clear reproduction steps with device, locale, build ID and evidence; re-test after fixes.
• Share language-specific usability insights and nuance to improve the product.
• Work on-site in a private, secure Welocalize office; remote work is not possible for this programme.
• Support other linguistic projects as needed.

Skills

Thai language

Detail-oriented

Test scripting

Job description

Welocalize is seeking a native-level Thai speaker to join a confidential AI and consumer technology programme. This hands-on, on-site role involves evaluating a pre-release AI model in Thai and testing its performance on client devices, including smartphones and smart glasses.

You will document issues clearly for developers, check feature parity with English, and provide language-specific insights on navigation and usability. On-site work in a secure Welocalize office is required.