Job title: Data Scientist (LLM)
Job type: Permanent
Emp type: Full-time
Industry: Computer Software
Salary: Negotiable
Location: Lisbon, Hybrid
Job published: 19-12-2025
Job ID: 36375

Job Description

Job Brief

  • We are looking for a Lead Data Scientist to join a tech professional services company part of an international group, to work from the Lisbon office 2x a week. 

Responsibilities:

  • Design, develop, and deploy machine learning and AI solutions
  • Build and fine-tune Generative AI models, including LLM-based systems
  • Implement Retrieval-Augmented Generation (RAG) pipelines
  • Work with vector databases to support semantic search and AI workflows
  • Apply NLP techniques to solve real-world business problems
  • Collaborate with cross-functional teams in an agile environment
  • Contribute to production-ready AI systems following MLOps best practices

 

Requirements & Skills:

  • Bachelor’s or Master’s degree in Computer Science, Data Science, Machine Learning, or a related field
  • 3+ years of practical experience in Machine Learning and AI development
  • Strong hands-on experience with Generative AI and Large Language Models (open-source and commercial)
  • Solid knowledge of RAG architectures and vector databases
  • Advanced Python skills with frameworks such as TensorFlow, PyTorch, and Hugging Face
  • Strong understanding of NLP concepts, models, and architectures
  • Experience with classical ML techniques (e.g., decision trees, SVMs, clustering, neural networks)
  • Familiarity with cloud platforms (AWS, GCP, or Azure) for AI/ML deployments
  • Knowledge of MLOps tools and practices
  • Strong analytical thinking and problem-solving skills
  • Clear communication skills and ability to work effectively in a team
  • Fluency in English (C1 level or above)


Next Steps

  • Do you consider yourself the ideal candidate for this role? If so, take the next step and apply now. Our team will take care of the rest!