An international organisation in the aviation sector is seeking a Principal Engineer to lead the design and delivery of enterprise-scale engineering solutions supporting AI-driven platforms. This is a senior, hands-on role embedded within a major airline environment, with responsibility for setting technical direction and ensuring solutions scale across multiple operating companies. Role Overview You will define and drive end-to-end architecture for AI-enabled systems, contributing directly to production code while establishing engineering standards across squads. The role requires consultancy-level technical depth, strong delivery discipline, and the ability to translate complex operational needs into scalable, enterprise-ready solutions. Key Responsibilities Design and own architecture across all layers of the technology stack. Write production-grade code and deliver enterprise-ready solutions at pace. Engineer scalable, modular platforms capable of deployment across multiple operating companies. Collaborate closely with product, data engineering, data science, analytics, and frontend teams to deliver cohesive solutions across technologies. Implement best practices for scalability, performance, resilience, and security in cloud environments (AWS preferred). Support integration of AI solutions into operational workflows. Define technical standards and frameworks to enable multi-OpCo deployment and interoperability. Translate busin...