Lead Frontend Engineer - SDK & Security (React/TypeScript)

London Stock Exchange Group (LSEG) is seeking a Senior Frontend Developer to join the Customer Identity & Access Management team. You will play a pivotal role in maintaining and evolving our JavaScript SDK, a critical interface that enables secure authentication and seamless integration of our Authentication into client applications across to our customers.

This role is ideal for someone who thrives in developer experience, SDK design, and security-focused frontend engineering.