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From the employer's careers site First seen 26 Oct 2026

Staff Applied Scientist, LTV Modeling

Faire New York City, NY Hybrid staff full-time

Salary

$246,500 to $339,000 per year

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Description

As a Staff Applied Scientist on the Discovery team, you'll own how Faire measures and optimizes the long-term value of a discovery impression , one of the highest-leverage open problems on our marketplace.

You'll build the LTV framework, design experiments to validate it, and turn the result into a shared signal that all discovery algorithms can act on.

Responsibilities:

  • Own how we measure and optimize the long-term value of a discovery impression , how it contributes to the discovery of new brands retailers might love, and how it strengthens existing promising relationships so they compound.
  • Create the initial LTV framework: form and prioritize hypotheses about what drives long-term relationship value and the key short- vs. long-term tradeoffs, with assumptions made explicit and testable, and lay out the experimentation roadmap to validate and refine it.
  • Lead the implementation of v0 of the LTV model into a long-running ranking experiment, setting north star metrics as well as guardrails to maximize organizational learning, with a defined readout cadence and course-correction plan.
  • Deliver the long-term surrogate metric , a near-term readout predictive of long-term value , accounting for confounding factors and inherent uncertainties in measurement and marketplace dynamics.
  • Own the LTV model tech stack and operating standards, continuously improving the capabilities and accuracy of the model as it becomes consumable across search, reorder, and ads.

Requirements:

  • 5+ years applying ML and statistical modeling to real business problems, shipping to production.
  • Deep causal inference expertise , quasi-experimental methods, rigorous confounder control, and healthy skepticism of analytical results.
  • Strong experimentation design skills, especially long-horizon experiments , surrogate/proxy metrics and variance reduction for sparse, delayed outcomes.
  • Baseline knowledge of search and recommendation systems on e-commerce or marketplace platforms.
  • Strong statistical analysis and data engineering skills , SQL/ETL and data transformation at scale.
  • An excitement and willingness to learn new tools and techniques.
  • Excellent communication skills and the ability to work in a highly cross-functional team.

Benefits:

  • Competitive pay, equity, and comprehensive benefits designed to support your life inside and outside of work.
  • Move fast: You'll own meaningful problems that serve customers around the globe with the agency to move fast and see your results clearly.
  • Equipped to scale: We invest in what matters, including the latest enterprise AI tools, to help you work smarter and get more out of every day.
  • Best in class: Our team is full of sharp, kind, and generous colleagues who care about their craft and about helping you grow in yours.
  • Belonging: We're intentional about building an environment where every Faire employee has equal access to opportunities, growth, and success.

Skills

Required

Nice to have

  • PhD in CS, Stats, Economics, OR, or a related STEM field
  • LTV / lifetime-value optimization on a two-sided marketplace, e-commerce platform, or other recommendation systems
  • Deep learning, machine learning, or learning-to-rank techniques

Ready to apply?

You apply with the employer directly. Their original posting is here: https://job-boards.greenhouse.io/faire/jobs/8801834002

Apply on Faire