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# Senior Data Scientist (Bayesian Modelling)

- **Company:** SEARCHTRIBES LTD
- **Location:** London, United Kingdom
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Code Review, Python (Programming Language), SQL Databases, Pandas
- **Published:** October 30, 2026
- **Apply:** https://www.totaljobs.com/job/senior-data-scientist/searchtribes-ltd-job108257151

## About the Role

* Bayesian Expertise: Practical experience with hierarchical models, MCMC, variational methods, and hands-on work in PyMC, Stan, or NumPyro.
 * Technical Stack: Strong proficiency in Python, SQL, and pandas (Polars or AWS experience is a plus).
 * Track Record: 5+ years of data science experience (PhD and postdoc work count toward this total).
 * Communication Skills: Ability to bridge the gap between complex probabilistic modeling and commercial decision-making.

## Description

* Drive Model Strategy: Select and build the right Bayesian, frequentist, or ML methods to continuously improve flagship measurement platforms.
 * Build Core Architectures: Construct hierarchical, time series, and audience models in PyMC, Stan, or NumPyro.
 * Set Technical Standards: Define team best practices for priors, diagnostics, posterior checks, and scalable inference.
 * Lead & Mentor: Guide junior and mid-level data scientists through code reviews, technical sessions, and shared best practices.
 * Commercial Translation: Communicate probabilistic outputs into clear, actionable business insights for client stakeholders.