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)

Your Next Challenge Awaits!

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