Spanish (Spain) Linguistic Evaluator & Functional Tester

Role Summary

Welocalize is looking for a native-level Spanish (Spain) speaker to join a confidential, large-scale AI and consumer technology programe 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 Spanish (Spain) , 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.

Responsibilities

• Review pre-release AI model outputs in Spanish (Spain) and evaluate them for accuracy, naturalness, appropriateness, and overall quality—would a native speaker say it this way? Fact-check each response against the provided source material.
• Test the Spanish (Spain) experience against English: confirm feature parity, complete an end-to-end user journey using non-English input, and verify that the product correctly handles non-Latin scripts, diacritics, right-to-left text, and mixed-language input.
• Identify any display issues (text cut off, overflowing, or rendering poorly) and any localization errors—incorrect dates, numbers, currencies, units, or untranslated strings.
• Document each issue clearly so a developer can reproduce it—include steps taken, device and OS, locale, build ID, and supporting evidence. Retest after a fix ships to confirm it’s resolved.
• Provide native-level insights on navigation and usability, calling out Spanish (Spain) -specific nuances that only a fluent speaker would notice.
• Work on-site in a private, secure area of the Welocalize office; due to the confidential, pre-release nature of the work, remote or work-from-home options are not available.
• Assist with other linguistic projects as needed.

Requirements

• Native-level or fully bilingual proficiency in Spanish (Spain) , written and spoken, with an up-to-date sense of real-world usage across both everyday and technical contexts.
• Confident using smartphones and laptops; comfortable working across both iOS and Android.
• Strong attention to detail and fair, objective judgment when assessing quality.
• Ability to work independently, follow detailed test scripts and guidelines, and clearly explain issues in English.
• Previous experience in software/app testing, localization QA, or linguistic evaluation is a strong plus, but not required if you bring the language skills and attention to detail.
• Welocalize helps the world’s leading brands reach global audiences—and language testing is at the core of that mission. You’ll work alongside experienced linguists and testers on pre-release technology, in a team that takes quality and precision seriously.
• If you’re a native-level Spanish (Spain) speaker with a keen eye for detail and an interest in how language and technology intersect, we’d like to hear from you.