Senior Data Scientist at IRIUM – Lisboa, Lisboa

At IRIUM we want you to always chase your dreams. Here, prepare yourself to conquer your goals, while enjoying the journey.

We are currently looking for Senior Data Scientist

Requirements:

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.

Required Qualifications to be successful at this role:

Technical Skills:

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.
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.
Experience:

Degree in Mathematics, Computer Science, Machine Learning, or a related field.
At least 5 years of professional experience in data science environments with proven success in building and architecting production-level data solutions.
English proficiency (minimum B2 level).

Location: Lisbon, hybrid

What do we offer?

➡ An innovative and growing company, with a lot of opportunities for professional development.

➡ Retribution according to your experience and performance. Access to flexible pay and medical insurance as a social benefit.

➡ Unlimited access to technological training in free mode.
IRIUM is a company with dynamic and proactive professionals. Our values ​​are responsibility and commitment to work quality. This is the spirit we are looking for at IRIUM, whatever your age is. If you recognize yourself in this, this is your company!
We can build the future together. Let’s talk!

Send your CV to: recrutamento@irium.pt
At IRIUM we defend a world without stereotypes or limitations and we believe in equality for all, principles that we subscribe to in our Equality Plan and Code of Ethics, guaranteeing equal treatment and opportunities regardless of any personal, physical or social condition.