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Senior Frontend Engineer: SDK & Security (React/TS)

📍 Location
london
⏰ Job Type
Full-time
📅 Posted
May 31, 2026

About the Role

LSEG is looking for a Senior Frontend Developer for their Customers Identity & Access Management team in Greater London. The ideal candidate will maintain a JavaScript SDK while ensuring secure integration with authentication services, utilizing React and TypeScript. Applicants should have extensive frontend development experience and a strong understanding of OAuth2 and OpenID Connect. This role supports a flexible hybrid work model and offers competitive compensation and benefits, enhancing work-life balance.
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