Ci&T
AI

[Job00025] Senior Data Scientist Portugal

Ci&T · Remoto, PT

Actively hiring Posted about 1 month ago

Role overview

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.

With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.

We are looking for a passionate and versatile Data Scientist to join our global team at CI&T. In this role, you will apply statistical modeling, machine learning, and advanced analytics to solve real-world problems for some of the world’s largest brands. You will work with structured and unstructured data, experiment with algorithms, and build data-driven solutions that drive business impact.

What you'll work on

  • Understand complex business challenges and translate them into data science problems.
  • Explore, analyze, clean, and model structured and unstructured datasets from various sources.
  • Design and implement machine learning models, statistical tests, and optimization strategies.
  • Conduct experimentation using A/B testing, uplift modeling, and simulation frameworks.
  • Deliver Proof-of-Concepts and production-ready models within Agile and cross-functional teams.
  • Create and present data storytelling insights for both technical and business stakeholders.
  • Contribute to model explainability, fairness, and responsible AI practices.
  • Stay updated on academic and industry research, and promote innovative solutions.

What we're looking for

  • Knowledge of Explainable AI techniques.
  • Exposure to graph analytics, recommender systems, or NLP applications.
  • Experience with data visualization tools (Power BI, Tableau, Plotly, Streamlit).
  • Understanding of data governance, quality, and security (including GDPR).
  • Familiarity with CI/CD and MLOps practices (e.g., MLflow, DVC).

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