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Senior AI Research Scientist – NLP, Information Retrieval & LLMs (Spain Remote)

Madrid, M, es🌐 Remote💼 Full-time💰 $55,300–$70,000🗓 2026-07-23 → 2026-09-26

Core

Research, evaluate, and adapt state-of-the-art techniques to solve large-scale AI problems, primarily in Information Retrieval, Recommendation Systems, Product Matching, NLP, and Generative AI.

Role type

Senior AI Research Scientist (NLP, IR, LLMs)

Builds

Scalable, reproducible machine learning solutions and research frameworks for consumer intelligence and business initiatives.

Domain

Consumer Intelligence / Retail Analytics / AI Research

Deliverable

production ML models | research

Required skills

Transformer architectures, embeddings, representation learning, vector databases, Python, PyTorch, Hugging Face, experimental design, scientific literature evaluation

Preferred skills

RAG architectures, LLMs, agent-based frameworks, Knowledge Graphs, Databricks, SQL, Elasticsearch

Technologies

FAISS, ChromaDB, Pinecone, Databricks, Elasticsearch, SQL

Responsibilities

Lead development of ML innovations for complex business challenges; Design and conduct advanced experiments and feasibility studies; Mentor and support other scientists; Lead or contribute to scientific publications, patents, and conference submissions; Communicate technical vision and strategic recommendations to stakeholders.

Seniority

Senior, hands-on IC with mentorship responsibilities

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