Requirement: 

Language Skills: Native fluency in Spanish and fluent in English. 

Location: Must be based in Spain.

Education: Bachelor’s, Master’s, or Doctorate degree in Computer Science, Data Science, Computational Linguistics, Human-Computer Interaction (HCI), Cognitive Science, or a related analytical field.  

Prompt Engineering & AI Expertise: At least 4 years' experience as Prompt Engineer. Proven experience tuning Large Language Models (LLMs) for strict, structured outputs, complex classification tasks, and familiarity with chain-of-thought and few-shot learning.  

Data Analysis: Strong proficiency in identifying error patterns, analyzing model performance, and using SQL or other data analytics tools.  

Technical Agility: Ability to quickly learn and master proprietary tools with minimal supervision.  

Communication: Excellent verbal and written communication skills.  

Optional / Preferred Skills:  

Familiarity with enterprise-grade LLM interfaces like the Goose API.  

Experience in AI model evaluation, data science, computational linguistics, or software engineering.  

Hands-on experience with Automated Prompt Optimization (APO) systems or tuning workflows.  

Linguistic expertise, including an understanding of semantics and logic.