Posted by the employer · Barcelona, Spain
German Linguistic Evaluator & Functional Tester
Welocalize · Barcelona · Spain
Posted: 23/9/2026 · On the employer's job feed since 11/10/2026
The advert
Quoted in full from Welocalize's job posting. Gavroche does not edit it.
About Welocalize
ROLE OVERVIEW
It's a hands-on, on-site role that combines two things: evaluating a pre-release AI model in German, 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.
MAIN RESPONSIBILITIES
- Review pre-release AI model outputs in German 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 German 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 German-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.
JOB REQUIREMENTS
- Native-level or fully bilingual proficiency in German, 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 German speaker with a keen eye for detail and an interest in how language and technology intersect, we’d like to hear from you.
New roles in Barcelona, last 12 weeks
- 20/7/2026 15
- 27/7/2026 12
- 3/8/2026 11
- 10/8/2026 19
- 17/8/2026 20
- 24/8/2026 23
- 31/8/2026 24
- 7/9/2026 25
- 14/9/2026 30
- 21/9/2026 64
- 28/9/2026 47
- 5/10/2026 61
- 12/10/2026 26
377 vacancies. Source: Direct employer job feeds (ATS) and career sites crawled by gavroche-direct; vacancies by their own publication week.
Other roles at Welocalize
- AI Trainers Network - Vietnamese
- Project Perseus - Data Quality Analyst - English Speakers - Europe - UK - Canadian and/ or Australian variants - - - Human-in-the-Loop AI
- Project Perseus - Data Labeling Associate - English Speakers - Europe - UK - Canadian and/ or Australian variants
- General Freelance Applications
- Associate Manager - Robotics Lab · Santa Clara
- Tech Linguistic Tester for French - from France - Language · Portland
201 open. Source: Direct employer job feeds (ATS) and career sites crawled by gavroche-direct.