CI&T

[Job-00025] Senior Data Scientist, Portugal

CI&T  •  Portuguese Republic (Onsite)  •  3 months ago
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AI Success™

Job Description

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.
Main Responsibilities:● 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.
Nice to Have:● 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).
#LI-BM2Why join us?
- 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…
Collaboration is our superpower, diversity unites us, and excellence is our standard. We value diverse identities and life experiences, fostering a diverse, inclusive, and safe work environment. We encourage applications from diverse and underrepresented groups to our job positions.
CI&T

About CI&T

We are your global partner in tech-integrated business solutions, bringing deep business understanding together with technology and AI to help leaders navigate change with clarity and measurable impact. With teams around the world and decades of transformation experience, we work side by side with clients to solve complexity and create meaningful, lasting impact.

Industry
IT & Software
Company Size
5,001-10,000 employees
Headquarters
New York, NY
Year Founded
1995
Website
ciandt.com
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