Overview

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 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