Senior Product Security Engineer — Secure-by-Design Leader

Trainline in London is seeking a Senior Product Security Engineer to own product security across the development lifecycle, partnering with SRE and Platform Engineering to embed security into what we build. You'll act as a trusted bridge between security, engineering and the business to foster a secure-by-design culture.

You will lead the security roadmap, manage vulnerability processes, perform threat modelling for web, mobile and APIs, and drive secure coding and CI/CD automation.