Senior Decision Scientist, Marketplace Analytics

Relay Technologies; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Job summary

Relay Technologies in London is seeking a data‑driven professional to own marketplace decisions and drive value across pricing, matching and incentives.

You will be hands‑on with SQL (and AI where helpful), build your own analysis apps, monitors and alerts, and collaborate with engineers and product teams to implement changes that improve efficiency and merchant/courier outcomes.

This role blends analytical rigor with entrepreneurial pace in a fast‑growing logistics tech environment.

Qualifications

• Hands-on in decision-making for a two-sided marketplace or gig platform.
• Ability to turn data into actionable decisions and roadmaps.
• Experience driving changes after experiments and tests.

Responsibilities

• Decide which Marketplace problems are real and which look real before fixes.
• Design how Marketplace decisions are made: signals and pay criteria.
• Tell the squad lead what to change and what to stop, and implement decisions.
• Build data applications, monitors and alerts to ship tools and insights.
• Identify missing data and prove whether each change worked in production.

Skills

SQL

AI

Data analysis

Experimentation

Tools

Claude

Job description

Relay Technologies in London is seeking a data‑driven professional to own marketplace decisions and drive value across pricing, matching and incentives.

You will be hands‑on with SQL (and AI where helpful), build your own analysis apps, monitors and alerts, and collaborate with engineers and product teams to implement changes that improve efficiency and merchant/courier outcomes.

This role blends analytical rigor with entrepreneurial pace in a fast‑growing logistics tech environment.