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Data Scientist (Bayesian Inference)

Numerator


Job Location:

Chicago, IL - USA

Monthly Salary: Not provided by the employer
Posted: 20 September 2026 (9 days ago)
Application Deadline: 27 December 2026
Vacancies: 1 Vacancy

Job Summary

Numerator is seeking a Data Scientist (Bayesian Modeling) to help build enhance and scale data science services across our rapidly evolving data platform. Youll work on initiatives that turn massive proprietary datasets into impactful production-grade solutions..

This is a growth-track product-focused role. Youll collaborate with Product Data and Engineering teams to learn how customer needs translate into data-driven products analytics methodologies and new offerings that drive measurable business impact.

How Youll Spend Your Time:

  • Contribute to the implementation and delivery of Bayesian and probabilistic modeling pipelines from methodology research through production with guidance from senior team members

  • Execute on individual tickets independently and take on small epics with mentorship and guidance

  • Work closely with Product GTM Data and Engineering to turn models into reliable production-grade solutions the business can depend on

  • Actively participate in the teams learning culture (journal club analysis reviews standups) and seek feedback to continually level up your craft in Bayesian methods and reasoning about uncertainty

  • Communicate methods results and tradeoffs clearly to both technical and non-technical audiences




  • Strong foundation in Bayesian inference and probabilistic modeling e.g. hierarchical / multilevel models state-space and time-series models graphical models MCMC/HMC variational and other approximate inference
  • Experience or coursework applying probabilistic/Bayesian methods to real-world datasets with a strong curiosity to learn production-grade standards

  • Comfort reasoning about uncertainty calibration and model validation

  • Facility with large or structured datasets and the computational side of inference at scale

  • Strong Python and fluency in a modern probabilistic-programming and numerical-computing stack NumPyro PyMC Stan JAX dynamax or similar. We hire on the ideas not on exact tooling

  • Demonstrated interest in shipping statistical models into production systems and writing maintainable code

  • BS to PhD in Statistics Math Economics Physics CS or a related quantitative field

  • 02 years of relevant experience or recent graduate with strong quantitative project work

  • Clear communication with both technical and non-technical audiences

Nice to Haves:

  • Diagnosing and debugging large Bayesian models convergence and divergence issues pinning down which part of a big model is misbehaving and knowing which inference method to reach for

  • Weighting a non-representative survey or panel sample up to a known population and a feel for where those adjustments break down

  • Hierarchical models spanning multiple crossed or overlapping groupings relationships that bridge hierarchies not just a single nested tree

  • Experience with graph or network models or modeling relational / graph-structured data

  • Measurement-error modeling or reconciling multiple imperfect data sources

  • CPG / FMCG / retail experience or work with user-level purchase or panel data

What We Offer:

  • An inclusive and collaborative company culture - we work in an open transparent environment to get things done and adapt to the changing needs as they come

  • An opportunity to have an impact in a technologically data-driven company thats changing the market research industry and getting rave reviews

  • Ownership of data solutions

  • Market-competitive total compensation package

  • Volunteer time off and charitable donation matching

  • Strong support for career growth including mentorship programs leadership training access to conferences and employee resources groups

  • Regular hackathons to build your own projects and Engineering and Data Science Lunch and Learns

  • Great benefits package including health/vision/dental unlimited PTO flexible schedule internally quiet focus time recharge days 401K matching travel reimbursement and more




Required Experience:

IC


About Company

Numerator is seeking a Data Scientist (Bayesian Modeling) to help build, enhance, and scale data science services across our rapidly evolving data platform. You’ll work on initiatives that turn massive proprietary datasets into impactful, production

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