Senior Product Engineer (Backend) - AI-Native SaaS Platform | Tripled ARR in 12 months Remote-first (UK) with hybrid London office option Up to £130,000 + equity Typescript/Node, React, GCP/AWS Senior Product Engineer - We're working with a rapidly scaling AI-native SaaS company who raised an impressive Series B round in 2025. Their platform is redefining the sector, and with revenues tripling in the last year to over $12m ARR, they're now expanding their Engineering team to match the ambition of their product and customers. The Senior Product Engineer As a Senior Product Engineer , you'll be at the heart of designing, building, and scaling Back End systems that power a complex, AI-driven product. You'll work across the stack with a focus on Back End engineering, solving challenging technical problems while shaping the product experience for thousands of users. What will the Senior Product Engineer do? Contribute across the stack (Node.js/Typescript, GCP), with a strong focus on Back End systems Design scalable architectures and APIs to support rapid product growth Lead end-to-end feature development, from concept through to release Champion engineering best practices and bring new ideas to the table Collaborate closely with Product...