On-site Portuguese Brazilian AI Linguistic Evaluator & Tester

Welo Global; Barcelona; On-site; EUR 28,000 - 42,000; Full time

Job summary

Welocalize is seeking a native-level Portuguese Brazilian speaker to join a confidential, large-scale AI and consumer technology programme. This on-site role combines evaluating a pre-release AI model in your language and testing its performance on a client-supplied device — a smartphone and a next-generation smart glass.

You’ll be among the first to see this technology in Portuguese Brazilian, and your judgement shapes how well it works before anyone else uses it.

Qualifications

• Native-level Portuguese Brazilian, written and spoken.
• Comfort using smartphone and laptop, with iOS/Android familiarity.
• Sharp eye for detail and objective judgement in quality assessment.
• Ability to work independently and explain issues in English.

Responsibilities

• Review pre-release AI model output in Portuguese Brazilian 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.
• Test the Portuguese Brazilian experience against the English one: confirm feature parity, complete a full user journey using non-English input, and check the product handles non-Latin script, diacritics, right-to-left text, and mixed-language input correctly.
• Spot any display problem (text cut off, overflowing, or rendering badly) and any localization error — a wrong date, number, currency, unit, or a string left untranslated.
• Write up each issue clearly so a developer can reproduce it: the step taken, the device and operating system, the locale, the build ID, and supporting evidence.
• Share your perspective as a native-level speaker on navigation, usability, and the language-specific nuance only a fluent speaker would catch.
• Work on-site in a private, secure area of the Welocalize office. Because of the confidential, pre-release nature of the technology, a remote or work-from-home arrangement isn’t possible for this programme.
• Support other linguistic projects as needed.

Skills

Portuguese Brazilian

Attention to detail

Job description

Welocalize is seeking a native-level Portuguese Brazilian speaker to join a confidential, large-scale AI and consumer technology programme. This on-site role combines evaluating a pre-release AI model in your language and testing its performance on a client-supplied device — a smartphone and a next-generation smart glass.

You’ll be among the first to see this technology in Portuguese Brazilian, and your judgement shapes how well it works before anyone else uses it.