Senior Data Scientist

October 6, 2026

Hybrid

Senior

Barcelona

Worth knowing

English is required
B2 level

Description

Neotalent Conclusion is hiring a Senior Data Scientist for a retail-fashion client, joining the Product squad. The role covers purchase quantity optimization, assortment planning, online stock optimization and a GenAI assistant for reports, alongside production projects in sales forecasting and computer vision labeling. All projects are developed on AWS using Airflow, Databricks, MongoDB and Jenkins. The position is based in Barcelona with 2 onsite days per week and a permanent contract.

Responsibilities

Understand problems faced by planning, purchasing and distribution departments
Develop rapid proofs of concept with tools like Streamlit and assess data quality and potential
Prepare future projects with associated ROI metrics based on relevant data insights
Develop Machine Learning algorithm projects in production environments
Collaborate with other Data Scientists, ML Engineers and Advanced Analytics team members
Use Big Data technologies to handle large volumes of data and improve model efficiency
Research, define, prototype, develop and productionize AI algorithmic solutions

Requirements

Degree or Master in Mathematics, Computer Science, Data Science Engineering or similar
At least 5 years of experience developing in Python or another object-oriented language
Experience using and productionizing ML libraries like scikit-learn and Deep Learning with TensorFlow or PyTorch
Strong knowledge of Machine Learning and neural networks including architectures and evaluation methods
Experience prototyping ML-based software solutions and defining experimentation for such projects
Valued experience leading end-to-end development from prototype to production and maintenance
Valued knowledge of programming best practices such as tests, automation and CI pipelines with Jenkins
Valued experience working with the mentioned AWS cloud services
Committed, proactive and curious person with hands-on mentality and desire to innovate
Required English at B2 level

Conditions

Location in Barcelona with 2 onsite days per week
Permanent contract with Neotalent Conclusion
Work on challenging projects for large clients
Opportunity to learn more about emerging technologies
Access to continuous training and certifications
Flexible compensation plan

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