Principal Software Engineer - AI Pod (Dublin, Ireland)

This hybrid role is based in Dublin, Ireland (Full relocation provided). Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. Because our technology is purpose-built for restaurants, by restaurant people - and increasingly shaped by AI in both what we build and how we build - restaurants can trust that we'll deliver on their needs for today while investing in the experiences that will power their restaurant of the future. An AI pod is Toast's AI-native engineering team, a focused pod of specialists who tackle complex, high-impact problems across Toast's product and platform landscape using AI-first approaches. As a Principal Software Engineer, you'll work full-stack across ambitious, cross-cutting initiatives, bringing deep technical expertise and architectural judgment to some of the hardest problems at Toast. A day in the life (Responsibilities) Lead full-stack design and delivery of AI-native solutions that address complex, cross-functional problems across Toast Drive technical architecture for pod initiatives, from backend services and APIs to frontend and developer-facing interfaces Build and integrate LLM-powered agents, tools, and workflows that bring AI capabilities directly into product and platform contexts Set and uphold engineering standards within the pod: code quality, system design, testing, and operational practices Mentor engin