We believe in better. And we make it happen.Better content. Better products. And better careers.Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, SkyQ to Sky Glass, we never stand still. We optimise and innovate.We turn big ideas into the products, content and services millions of people love.And we do it all right here at Sky.What You''ll DoAs a Senior Lightning.js Engineer on the My Sky team, you will: Design, build, and evolve core features of the My Sky app and platform, which run directly on Sky''s TVs and streaming devices. Lead technical delivery across features and components, ensuring architectural consistency, performance, and code quality. Leverage your deep experience with Lightning.js (built on JavaScript/TypeScript) to craft highly performant, memory-efficient, and visually engaging TV applications. Act as a subject matter expert for Lightning.js - mentoring engineers, reviewing designs, and setting standards for UI performance and maintainability. Develop and refine application architecture to ensure scalability across millions of devices. Drive end-to-end quality by creating and enforcing Unit, Integration, and E2E testing strategies. Collaborate cross-functionally with product, design, and QA to deliver exceptional user experiences and maintain platform stability. Take ownership of production support, ensuring swift investigation and resolution of live issues through established s