Senior Data Scientist, Personalisation
Core
Building and leading recommender systems that match thousands of couriers to delivery routes, balancing courier preferences against physical network constraints and economics.
Role type
Senior IC machine-learning engineer (recommender systems & optimization)
Builds
Large-scale recommender systems powering courier route assignment and delivery optimization
Domain
Logistics / Operations Research / Machine Learning
Deliverable
production ML models
Required skills
recommender systems, reinforcement learning, LLMs, causal inference, operational research, experimentation design, large-scale optimization
Preferred skills
PhD in CS/Math/OR, publications in top venues, experience at frontier tech companies
Technologies
Python, PyTorch, TensorFlow, Spark, Kubernetes, AWS/GCP
Responsibilities
Set the standard for recommender systems at Relay, lead the evolution of the recommender from research to production, design and build recommender systems for key decisions, partner with Operational Research to unite models and optimization, contribute to research culture and tech community voice
