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LUZA Group

Data Scientist

LUZA Group
Portugal · Full-time · Mid-Senior

Job Title: Data Scientist

Location: Lisbon, Portugal

Work Regime: Full-time & Hybrid (2x office days)

Overview / Summary:

We are looking for a Data Engineer to join our team and support the design, development, and optimization of scalable data solutions in a cloud-based environment. You will work with AWS, Python, and SQL to build reliable data pipelines, enable analytics initiatives, and contribute to a collaborative hybrid work setting.

Responsibilities and Tasks:
  • Lead and design and develop Generative AI solutions, including transformer models, embeddings, and LLM-based pipelines.
  • Build and optimize traditional ML models for multiple use cases, ensuring strong data preparation and feature engineering.
  • Automate, version, deploy, and monitor data science pipelines using MLOps best practices.
  • Communicate analytical results clearly and stay current with trends in AI, ML, and cloud technologies.
  • Lead a growing team and support pre-sales activities, including proposal development.



Requirements

Mandatory Requirements:
  • +4 years of previous experience as a Data Scientist, mainly leading roles.
  • Experience with GenAI development projects (transformers, embeddings, prompt engineering).
  • Experience with Advanced Data Science libraries and Python (NumPy, Pandas, visualize with Matplotlib and Seaborn, build models with Scikit-learn)
  • Experience with PySpark and MLOps (model versioning, experiment tracking (e.g., MLflow), deployment, and monitoring).
  • Experience with Azure, AWS and GCP.

Complementary Requirements:
  • Experience with open-source LLMs.
  • LangChain, LangSmith ou LlamaIndex.
  • Cloud Certifications: Microsoft Azure AI Engineer Associate, Google Cloud Professional Data Engineer, AWS Certified Machine Learning – Specialty).



Benefits

Important:
  • Our company does not sponsor work visas or work permits. All applicants must have the legal right to work in the country where the position is based.
  • Only candidates who meet the required qualifications and match the profile requested by our clients will be contacted.


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Key Skills

Ranked by relevance

cloud aws ai python mlops machine learning matplotlib seaborn pandas mlflow numpy sql
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Posted
Dec 01, 2025
Type
Full-time
Level
Mid-Senior
Location
Lisbon
Company
LUZA Group

Industries

IT Services IT Consulting

Categories

Other

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