Senior Data Scientist

We are looking for a Senior Data Scientist to join our team and lead the development of advanced Artificial Intelligence, Generative AI, and Machine Learning solutions.

In this role, you will be responsible for designing intelligent architectures, leading technical initiatives, and guiding teams in the delivery of innovative AI-powered solutions that create measurable business value. You will work closely with multidisciplinary teams to define and implement AI strategies, from experimentation to production deployment.

The role combines data science, AI engineering, and technical leadership, with a strong focus on Generative AI, Large Language Models, and modern Machine Learning practices.

Responsibilities:

• Lead the design and development of Artificial Intelligence, Generative AI, and Machine Learning solutions
  


• Define architectures for AI applications leveraging:
  
  
  
  • Large Language Models (LLMs)
    
  
  
  • Retrieval-Augmented Generation (RAG)
    
  
  
  • AI Agents
    
  
  
  • Modern AI frameworks and technologies
    
  
  


• Design and develop end-to-end AI-powered applications
  


• Define and implement approaches for:
  
  
  
  • Prompt Engineering
    
  
  
  • Model Evaluation
    
  
  
  • Fine-Tuning
    
  
  


• Develop and optimize AI and Machine Learning pipelines
  


• Drive innovation initiatives and identify opportunities to leverage emerging AI technologies
  


• Ensure adherence to best practices in:
  
  
  
  • Software development
    
  
  
  • Security
    
  
  
  • AI governance
    
  
  


• Collaborate with cross-functional teams to define business-focused AI solutions
  


• Mentor and support Junior and Mid-Level Data Scientists
  


• Monitor market trends and technological advances in Generative AI and Machine Learning
  

Requirements

• BSc or MSc in:
  
  
  
  • Data Science
    
  
  
  • Computer Science
    
  
  
  • Engineering
    
  
  
  • Statistics
    
  
  
  • Or a related field
    
  
  


• 5–10 years of experience in Data Science and Machine Learning
  


• Proven experience designing and delivering AI solutions in enterprise environments
  


• Strong experience with:
  
  
  
  • Generative AI
    
  
  
  • Machine Learning
    
  
  
  • Large Language Models (LLMs)
    
  
  


• Experience designing solutions based on:
  
  
  
  • RAG
    
  
  
  • AI Agents
    
  
  
  • Modern AI frameworks
    
  
  


• Solid knowledge of:
  
  
  
  • Prompt Engineering
    
  
  
  • Model Evaluation
    
  
  
  • Fine-Tuning techniques
    
  
  


• Experience building and deploying production-ready AI applications
  


• Strong leadership and technical mentoring capabilities
  


• Ability to translate business challenges into scalable AI solutions
  


• Excellent communication and stakeholder management skills
  


• Strong analytical and strategic thinking capabilities
  


• Fluency in English
  

Nice-to-have

• Experience leading AI transformation or innovation programs
  


• Knowledge of AI governance and Responsible AI frameworks
  


• Experience working in multidisciplinary and enterprise-scale environments
  


• Exposure to MLOps and production AI lifecycle management
  


• Strong focus on continuous learning and emerging technologies
  

Certifications (Valued)

• AI-900: Azure AI Fundamentals
  


• AI-102: Azure AI Engineer Associate
  


• DP-100: Azure Data Scientist Associate
  


• Equivalent certifications in Machine Learning, Generative AI, or Data Science platforms
  

Other Requirements

• Availability to work in a hybrid model in Lisbon (2 days per week on-site)
  

If this sounds like you, share your CV with us and let’s talk!