CI&T

Senior Data Scientist

CI&T

full-time

Posted on:

Location Type: Remote

Location: Remote • 🇵🇹 Portugal

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Job Level

Senior

Tech Stack

AWSAzureBigQueryCloudGoogle Cloud PlatformPandasPythonScikit-LearnSQL

About the role

  • 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.

Requirements

  • Proficiency in Python (pandas, scikit-learn, statsmodels, etc.) and SQL.
  • Experience building and validating ML models: regression, classification, clustering, dimensionality reduction, forecasting.
  • Strong knowledge of data wrangling, feature engineering, and statistical hypothesis testing.
  • Experience with cloud platforms (AWS, Azure, or GCP) and scalable data/ML tools (e.g., Databricks, BigQuery, SageMaker).
  • Familiarity with Git and experimentation frameworks.
  • Experience with model deployment and integration into digital products or services.
  • Business acumen and a consulting mindset to help translate insights into impact.
  • Advanced communication skills in English (written and spoken), able to work in multicultural teams.
Benefits
  • Competitive Salary
  • Generous paid vacation days
  • Generous sick time
  • 100% paid health & dental benefits starting day one
  • Annual profit-sharing distribution
  • Paid parental leave
  • Dedicated career advisor
  • And so much more…

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
PythonSQLmachine learningregressionclassificationclusteringdimensionality reductionforecastingdata wranglingstatistical hypothesis testing
Soft skills
business acumenconsulting mindsetadvanced communication skillscollaborationdata storytellingmodel explainabilityfairnessresponsible AI practices