Lead Causal Inference Scientist for Live Marketplaces

Relay Technologies; Greater London; Hybrid; GBP 70,000 - 120,000; Full time

Job summary

Relay is seeking a Research Scientist to lead causal inference efforts across its live two-sided marketplace. You will design experiments, quantify courier- and merchant-level impacts, and translate insights into production-quality models and optimisations that shape Relay’s network decisions.

You’ll collaborate with teams across statistics, machine learning and operations research, ensuring rigorous experimentation, clear signal extraction, and robust, scalable solutions that drive real-world

Job description

Relay is seeking a Research Scientist to lead causal inference efforts across its live two-sided marketplace. You will design experiments, quantify courier- and merchant-level impacts, and translate insights into production-quality models and optimisations that shape Relay’s network decisions.

You’ll collaborate with teams across statistics, machine learning and operations research, ensuring rigorous experimentation, clear signal extraction, and robust, scalable solutions that drive real-world