German Linguistic Evaluator & Functional Tester

Weloglobal

Barcelona, Spain

On-site

Who this role is best for

Best suited to native-level German speakers with attention to detail working in AI and consumer technology.

Best fit for

Candidates who enjoy identifying subtle nuances in language and technology integration
— “If you enjoy noticing the detail other people miss, this is work you'll find satisfying.”
Individuals comfortable with on-site work and testing AI models on physical devices
— “It's a hands-on, on-site role that combines two things: evaluating a pre-release AI model in your language, and testing how the product actually performs on a client-supplied device”

Things to consider

The role may require relocation to Barcelona, Spain, as it is a hands-on on-site position.
— “It's a hands-on, on-site role”
The candidate must be prepared to evaluate AI models for accuracy and cultural alignment, which may demand high precision.
— “Review pre-release AI model output in German and judge it on accuracy, naturalness, appropriateness, and overall quality”

How to stand out

Highlight experience with fact-checking and linguistic evaluation in your resume and interview responses.
— “This includes fact-checking each response against the source material.”
Emphasize your ability to assess AI-generated content from a native speaker's perspective.
— “native-level German speaker to join a large-scale AI and consumer technology programme”
Demonstrate familiarity with testing AI models on physical devices like smartphones and smart glasses.
— “testing how the product actually performs on a client-supplied device — a smartphone and a next-generation smart glass”

Pace · SteadyCollaboration · LowAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

accurate evaluation of AI model outputs
improvement in AI model performance

Typical background

native-level German speakerexperience in AI model evaluation

Skills & requirements

Required

Natural Language ProcessingAI Model EvaluationFact-checking

Preferred

Machine LearningData Analysis

About the role

Original posting from Weloglobal via Lever

About Welocalize
Welocalize, a Welo Global brand, serves localization teams through AI-enabled multilingual content solutions that enable enterprises to operate and scale globally. Welocalize combines AI, automation, and human expertise to support enterprises in more than 300 languages, enabling accurate, culturally aligned, and compliant multilingual content at scale.
Welocalize’s Opal Platform comprises patented technology designed to automate multilingual content and improve workflow performance for enterprises. Opal functions as an agentic system that orchestrates AI, automation, and human expertise to coordinate content workflows across the lifecycle, improving speed, scalability, and operational control for global enterprises. These solutions operate within a secure and compliant environment supported by seven ISO certifications. Welocalize is headquartered in New York with offices worldwide. welocalize.com
ROLE OVERVIEW
Welocalize is looking for a native-level German speaker to join a confidential, large-scale AI and consumer technology programme 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 your language, 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.
Welocalize is looking for a native-level German speaker to join a large-scale AI and consumer technology programme.
It's a hands-on, on-site role that combines two things: evaluating a pre-release AI model in your language, and testing how it performs on a real device. You'll be among the first people to see this technology in German, and your judgement shapes how well it works before anyone else uses it.
If you enjoy noticing the detail other people miss, this is work you'll find satisfying.
MAIN RESPONSIBILITIES
Review pre-release AI model output in German 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.

Source: Weloglobal careers (Lever)