Overview
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As a Prompt Engineer in our AI Innovation Lab, you design, test, and scale prompts for large language models to improve decision-making, knowledge access, and collaboration. You will work with a multidisciplinary team to apply generative AI to human development, sustainability, and social well-being. You’ll build a reusable prompt framework, refine outputs for quality and ethics, and contribute to responsible AI practices. This role offers impactful, mission-driven work with cutting-edge tools and cross-functional collaboration.
Compensaciones / Ventajas
100% remote work flexibility within Spain
state-of-the-art AI tools and infrastructure
training opportunities in generative AI, ethics, and advanced prompt engineering
high-impact projects contributing to sustainability, education, healthcare, and transformation
culture of collaboration, continuous learning, and purpose-driven innovation
Responsabilidades
Design, test, and refine prompts to maximize quality, accuracy, and ethical reliability of outputs
Build and maintain a prompt engineering framework with reusable templates, libraries, and guidelines
Collaborate with product,



engineering, and research teams to integrate AI into tools addressing social and business challenges
Apply advanced NLP techniques, embeddings, and fine-tuning to tailor LLMs to use cases
Implement metrics to evaluate model performance, bias, and inclusivity
Support development of AI systems aligned with organizational values, ethics, and social responsibility
Stay ahead of curve in prompt engineering, AI safety, and generative model capabilities
Requisitos principales
Bachelor in Computer Science, Computational Linguistics, AI, or related discipline
Demonstrated xqbhyrx experience designing prompts and workflows for LLMs (OpenAI, Anthropic, Google Gemini, Llama, etc.)
Solid Python programming with API experience
Strong understanding of NLP methods, embeddings, and vector databases (Pinecone, Weaviate, FAISS)
Familiarity with cloud platforms (AWS, Azure, GCP)
Ability to work cross-functionally and translate human needs into AI-powered solutions
Fluent in English (B2+)
Cross-functional collaboration
Strong communication
Problem solving
Prompt design for LLMs
NLP, embeddings, vector databases
Python programming

📌 Prompt Engineer – Generative AI (Barcelona)
🏢 Ethikos
📍 Barcelona