Lead Data Scientist

Há 5 horas


Porto, Portugal PTC Group Tempo inteiro

**About the job Lead Data Scientist**:
What's this job all about?

A key element to help PTC Group grow is to use an unprecedented amount of data available to make smart decisions.

Data Science team is an agile and international team spread across different countries. Data Scientists are working closely with Big Data engineers, business stakeholders and Product owners. Data Science team is involved in various projects (to name a few):

- Delivery route optimisation
- Product image similarity
- Product/Restaurant recommendations
- User segmentations
- User search queries segmentation
- Fraud detection
- Loan default prediction

To take us to the next level, we are looking for a proactive Lead Data Scientist with hands-on experience with either of the said areas.

Main responsibilities
- Being responsible for all the data science projects of one of our verticals.
- Handle communication with business stakeholders.
- Lead/Mentor data scientists involved in the projects.
- Owns business KPIs attached to the projects.
- Develop end-to-end understanding of the business.
- Build models considering the business problem behind.
- Designing, implementing, and analyzing AB tests.
- Working closely with Big Data engineers & ML engineers to deploy the models into production and ensure scalability.

**Requirements**:

- PhD or Master degree (with 5+ years of experience) in data science or similar field
- Very comfortable using pandas, numpy, scikit-learn, xgboost and matplotlib
- Proven experience in one or more programming languages (Python, R, etc.)
- Advanced SQL
- Knowledge of applied statistics (fit regression curves, build predictive models, statistical significance)
- Experience with A/B testing
- Good communication skills
- Nice to have: experience in NLP, Deep Learning related libs (e.g. TensorFlow, Keras, PyTorch), PySpark, Solver


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