Senior Data Scientist
# Think Data Be Smart #
About Us: DataSmart is a Portuguese company, positioning itself as a consulting company of excellence, with over 20 years of existence. We are specialized in Technologies and Information Systems services, for the Portuguese and International markets. We pride ourselves on fostering a culture of involvement, experience, and excellence.
Join our team as a Senior Data Scientist (Hybrid – Lisbon)!
What You’ll Do:
- Design and implement advanced machine learning and deep learning models
- Lead the development of production-level data science solutions
- Drive experimentation, model evaluation, and optimization strategies
- Work closely with stakeholders to translate business goals into analytical solutions
- Define and implement MLOps best practices, including monitoring and retraining
- Leverage big data platforms to scale model training and inference
- Mentor mid and junior data scientists and promote technical excellence
- Communicate insights and recommendations to technical and executive audiences
- Drive innovation and contribute to the long-term evolution of data platforms
Qualifications:
- Advanced Python for Machine Learning / Deep Learning (NumPy, pandas, scikit-learn, PyTorch/TensorFlow)
- 5+ years of experience in Data Science environments
- Strong background in statistics, experimental design, and causal inference
- Proven experience building and scaling complex ML/DL models in production
- Experience with ML experimentation tools (MLflow, W&B, Databricks ML)
- Advanced SQL skills for large-scale data manipulation
- Strong understanding of MLOps workflows (deployment, monitoring, drift management, retraining)
- Experience with big data platforms (Spark, Databricks)
- Experience with cloud ML platforms (Azure ML, AWS SageMaker, GCP Vertex AI)
- Strong data visualization and storytelling skills for executive audiences
- Strong strategic and analytical thinking
- Ability to evaluate trade-offs and make sound technical decisions
- Excellent communication with technical and non-technical stakeholders
- Strong mentoring and leadership skills
- Ability to break down complex, ambiguous problems into solutions
- Ownership mindset and proactive approach
- Collaborative mindset across cross-functional teams
- Degree in Mathematics, Computer Science, Machine Learning, or related field
- Proven track record in building production-level data solutions
- Experience mentoring teams and driving technical standards
- English proficiency (minimum B2)
At DataSmart, you will have the opportunity to integrate into a solid company and participate in projects of high recognition, nationally and internationally, with an appealing technological environment and career progression.
Excellence in the way to the future!
Connect with Us: Follow us on LinkedIn for updates on career opportunities, company news, and industry insights! For further details, visit us at www.datasmart.pt
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