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From the employer's careers site First seen 10 Nov 2026

Senior Decision Scientist, Marketplace

Relay London, Greater London Hybrid senior full-time

The employer hasn't listed a salary.

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Description

Relay is fundamentally reshaping how goods move in an online era. Backed by Europe’s largest-ever logistics Series A ($35M) led by deep-tech investors Plural, and a recently closed Series B ($95M), Relay is scaling faster than 99% of venture-backed startups.

As a Senior Decision Scientist, Marketplace at Relay, you'll decide which Marketplace problems are real and which only look real, before anyone builds a fix. You'll design how Marketplace decides: which signals count, and what good looks like for booking, matching and pay. You'll tell the squad lead what to change and what to stop, and get a decision.

Your responsibilities will include:

  • Deciding which Marketplace problems to prioritize
  • Designing the decision-making process for Marketplace
  • Building data applications, monitors, and alerts
  • Analyzing data to inform decisions
  • Collaborating with the squad lead to implement changes

Requirements:

  • Experience owning decisions in a two-sided marketplace or gig platform
  • Ability to analyze data and inform decisions
  • Fluency in SQL and ability to build analysis apps
  • Entrepreneurial drive and strong technical fundamentals

Benefits:

  • Opportunity to work on complex problems in a rapidly growing company
  • Collaborative and intellectually vibrant culture
  • Chance to make a significant impact on the business

Who Thrives at Relay?

  • People who aim with precision and measure their impact meticulously
  • Those who play to win and tackle hard problems
  • Individuals who believe in making small, consistent improvements
  • People who show up and step up, taking ownership from start to finish

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Ready to apply?

You apply with the employer directly. Their original posting is here: https://jobs.ashbyhq.com/relay/ebe00840-6e3a-4bfa-8cb3-779ee92a836e

Apply on Relay