Senior Data Scientist

PowerTalent: Recruitment, Selection, and Global Outsourcing

PowerTalent stands out for its customized talent solutions. As specialists in recruitment and selection, we streamline complex processes and find the best professionals worldwide.

We offer recruitment, outsourcing, and hybrid solutions, building local, nearshore, or offshore teams according to our clients’ needs.

With PowerTalent, we guarantee complete and efficient solutions, so our clients don’t have to worry about a thing.

New opportunity for a new international Tech Hub emerging from Lisbon.

We are seeking an experienced Senior Data Scientist to contribute to the design and execution of advanced analytical and machine learning solutions. This exciting role requires a strategic thinker who can link technical decisions to business objectives, mentor teams, and drive high-quality decision-making across cross-functional groups.

• 5+ years of professional experience in data science environments with proven success in building and architecting production-level data solutions.
• Advanced Python for ML/DL (NumPy, pandas, scikit-learn, PyTorch/TensorFlow).

• Strong background in statistics, experimental design, and causal inference.
• Proven ability to develop and scale complex ML/DL models for production environments.
• Proficiency in ML experimentation and tracking tools (MLflow, W&B, Databricks ML).
• Advanced SQL expertise for large-scale data manipulation and workloads.
• Deep understanding of MLOps workflows (model registry, deployment, monitoring, drift management, retraining).
• Experience leveraging big-data platforms (Spark, Databricks) to optimize model training and scoring.
• Solid knowledge of cloud-based ML platforms such as Azure ML, SageMaker, or Vertex AI.
• Degree in Mathematics, Computer Science, Machine Learning, or a related field.
• English proficiency (minimum B2 level).

Soft Skills:

• Ability to evaluate trade-offs and articulate sound technical choices.
• Effectively translate complex technical concepts to non-technical audiences.
• Exceptional mentoring skills to uplift mid/junior engineers and enforce standards and collaborative practices.
• Strong aptitude for breaking down ambiguous challenges into actionable, executable solutions.
• Ownership-minded approach to anticipate and resolve issues while driving long-term platform evolution.
• Advanced proficiency in data visualization and storytelling tailored for executive-level audiences.
• Skilled at establishing and mentoring teams to uphold best practices and technical excellence.

• Contract or B2B, its up to you
• Work model: 2 days per week in the office and 3 days at home.
• Continuing education and professional development