Senior Data Scientist: Statistical Leader & Hands-On Mentor

Cobre; Colombia; Remote; COP 120,000,000 - 250,000,000; Full time

Job summary

Cobre, Latin America's leading instant B2B payments platform, seeks a Senior Data Scientist to lead statistical design and model quality across squads. You’ll be hands-on, mentor data scientists, and step in to fix critical analyses when deadlines demand it.

Define standards of rigor, drive cross‑functional collaboration with Product, Risk, Engineering and Compliance, and ensure inference and predictive validity meet business goals with confidence. Fluency in English and Spanish is required.

Qualifications

• Master’s or Ph.D. in Statistics, Mathematics, Physics, Econometrics, Machine Learning, or a related quantitative field.
• Deep command of inferential statistics, probability, experimental design, and causal inference.

Responsibilities

• Define and enforce standards of statistical and mathematical rigor for all of the team's work — experimental design, hypothesis testing, model selection, validation, and treatment of bias and uncertainty.
• Act as the technical (not hierarchical) leader of data scientists embedded in different teams/projects — reviewing their work and stepping in to fix or co-build analyses.
• Conduct critical peer reviews of statistical and machine learning models before implementation, checking assumptions and robustness.
• Design and guide application of advanced statistical methods (time series, causal inference, optimization, Bayesian models) to business problems.
• Champion and use AI-assisted tools to speed up the data science lifecycle while maintaining rigor.
• Mentor junior and senior data scientists on mathematical fundamentals, raising the team's technical bar.
• Communicate complex analytical results clearly to technical and non-technical stakeholders, including senior leadership.
• Contribute to internal analytical quality frameworks applicable across teams.
• Collaborate with Product, Risk, Engineering and Compliance to ensure models address real business problems with appropriate statistical confidence.

Skills

Python

Advanced statistics

MLOps concepts

Technical leadership

Communication skills

English fluency

Spanish fluency

Fintech/domain knowledge

AI workflows

Education

Master’s or Ph.D. in Statistics/Math/ML/Econometrics

Tools

Snowflake

TensorFlow

PyTorch

ML libraries (scikit-learn, etc.)

Git

Job description

Cobre, Latin America's leading instant B2B payments platform, seeks a Senior Data Scientist to lead statistical design and model quality across squads. You’ll be hands-on, mentor data scientists, and step in to fix critical analyses when deadlines demand it.

Define standards of rigor, drive cross‑functional collaboration with Product, Risk, Engineering and Compliance, and ensure inference and predictive validity meet business goals with confidence. Fluency in English and Spanish is required.