Graduate Software Engineer - Build Core APIs and Data Infra

Relay is seeking a Graduate Software Engineer to join our London team. You will define core API concepts, build courier-facing software to guide daily deliveries, and help establish our data infrastructure used for routing and operations research.

This role includes hands-on field learning to connect technology with real-world impact. Ideal candidates are final-year engineering students with internships or project experience, eager to learn, own their work, and collaborate effectively across