Senior Data Scientist: Probabilistic Modeling for E-Commerce

Software Mind; Buenos Aires; On-site; ARS 1,800,000 - 3,200,000; Full time

Job summary

Software Mind in Buenos Aires is seeking a Senior Data Scientist with deep expertise in probabilistic AI and statistical machine learning to design and validate probabilistic models for ecommerce use cases such as pricing, shipping cost estimation, recommendations, and customer segmentation, working closely with the client’s CTO and engineering team to fit models into the platform.

You will translate models into production-ready services, define model lifecycles, and collaborate on architecture

Qualifications

• Strong background in Bayesian models, Markov chains, HMMs, MCMC, and mixture models.
• Experience with production deployment of statistical models is preferred.
• Excellent communication with technical and business stakeholders.
• Proficient in Python or R with probabilistic libraries.
• Ability to translate models into production service architectures.

Responsibilities

• Bayesian modeling and inference: design and implement Bayesian models for pricing, segmentation, and demand.
• Markov chains and Hidden Markov Models: build formulations for sequential patterns and state transitions.
• MCMC and Metropolis-Hastings: apply MCMC to estimate posteriors and validate convergence.
• Mixture modeling: develop Gaussian Mixture Models for segmentation in data.
• Expectation-Maximization: implement EM for latent-variable estimation.
• Architecture collaboration: align model design with platform architecture and integration points.
• Production translation: guide backend on API design and data contracts.
• Model lifecycle management: define training, validation, versioning, monitoring, and retraining cadence.
• Roadmap collaboration: size and estimate probabilistic modeling initiatives on the product roadmap.
• Documentation and handoff: document assumptions and provide clear hand-off guidance.

Skills

Bayesian modeling

Markov chains

Hidden Markov Models

MCMC methods

Gaussian Mixture Models

Expectation-Maximization

Python or R

Probabilistic libraries

Production deployment awareness

API design understanding

CI/CD basics

Version control

Communication skills

Tools

PyMC

Stan

scikit-learn

NumPy/SciPy

Job description

Software Mind in Buenos Aires is seeking a Senior Data Scientist with deep expertise in probabilistic AI and statistical machine learning to design and validate probabilistic models for ecommerce use cases such as pricing, shipping cost estimation, recommendations, and customer segmentation, working closely with the client’s CTO and engineering team to fit models into the platform.

You will translate models into production-ready services, define model lifecycles, and collaborate on architecture