LLM Language Evaluation Specialist – Spain
Project-based | Spain | Remote
We are looking for Catalan language specialists to participate in a long-term LLM Language Evaluation Project focused on evaluating the quality and accuracy of AI-generated content.
The project is expected to continue for 3+ months , with selected candidates first completing a trial evaluation before joining the production stage.
What You Will Do
Evaluate AI/LLM-generated content in Catalan according to detailed project guidelines.
Assess whether the content is accurate, natural, and linguistically appropriate.
Identify and classify language-related issues, including:
Mistranslation or inaccurate translation
Missing or omitted content
Incorrect terminology or word usage
Spelling, grammar, punctuation, and spacing errors
Word- or phrase-level issues
Other issues affecting the quality and readability of the content
Identify abnormal cases, such as non-Slovak content, language identification errors, duplicate content, or content requiring rejection.




Apply evaluation criteria consistently and provide structured evaluation results.
Maintain high accuracy and attention to detail throughout the project.
Requirements
High proficiency in Catalan.
Previous experience with Large Language Model (LLM), AI evaluation, AI training, data annotation, localization, translation, or related projects is required.
Strong understanding of Slovak grammar, vocabulary, terminology, and natural language usage.
Strong ability to identify subtle language errors and distinguish between acceptable and incorrect expressions.
Ability to understand and follow detailed evaluation guidelines.
Strong attention to detail and execution ability.
Comfortable working with structured digital documents and online tools.
Relevant professional or industry experience is a plus, but not mandatory.
Project Information
Project: LLM Language Evaluation
Target Language: Catalan
Duration: 3+ months
Work Mode: Remote / Project-based
Start: Septem

📌 LLM Language Evaluation Specialist (Madrid)
🏢 Thoth AI
📍 Madrid