# Staff Decision Scientist, Marketplace

**Company**: Relay
**Location**: London, Greater London
**Work arrangement**: hybrid
**Experience**: staff
**Job type**: full-time
**Category**: Data Science
**Industry**: Technology

**Apply**: https://jobs.ashbyhq.com/relay/04b258ec-0132-455e-bba8-8af687b3cacb?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/job/staff-decision-scientist-marketplace-1492e2d9-334/

## 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 Staff 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. You'll build the thing that decides: data applications, monitors, and alerts, not decks, using Claude and agents to ship your own tools.

The team consists of around 160 people, with 45+ advanced degrees across computer science, mathematics, and operations research. Thousands of data points are captured, calculated, analysed, and predicted for every single parcel handled.

Responsibilities:

- Decide which Marketplace problems are real and which only look real

- Design how Marketplace decides: which signals count, and what good looks like for booking, matching, and pay

- Tell the squad lead what to change and what to stop, and get a decision

- Build the thing that decides: data applications, monitors, and alerts

- Go and look when the data and the street disagree

- Get the missing data built, and prove whether each change worked

Requirements:

- Have owned the decisions a matching, pricing, or incentive model fed, in a two-sided marketplace or gig platform

- Have seen their work acted on: a leader changed a plan, a team adopted your method, or engineers built what you asked for

- Can trace why drivers or couriers stop booking or cancel, and can read the experiments behind a pricing or incentive change

- Have been through real change, such as a pivot, fast growth, or a new market, and rebuilt something because of it

- Are hands-on and fluent in SQL, with or without AI, and happy to build their own analysis apps, monitors, and alerts

- Would rather ship a working answer this week than a perfect one next quarter

Benefits: No specific benefits mentioned.

Who Thrives at Relay?

- Aim with Precision: You define problems clearly and measure your impact meticulously

- Play to Win: You chase bold bets, tackle the hard stuff, and view constraints as fuel, not friction

- 1% Better Every Day: You believe that small, consistent improvements lead to exponential growth

- All In, All the Time: You show up and step up, taking ownership from start to finish

- People-Powered Greatness: You invest in your teammates, giving and receiving feedback with care and candour

- Grow the Whole Pie: You seek out win-win solutions for merchants, couriers, and customers

For more fresh new jobs, check out [yubhub.co](https://yubhub.co/).

## Skills

### Required
- SQL
- data analysis
- decision-making
- problem-solving
- communication

### Nice to have
- AI
- Claude
- agents

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Source: [Apply at jobs.ashbyhq.com](https://jobs.ashbyhq.com/relay/04b258ec-0132-455e-bba8-8af687b3cacb?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)