Senior Frontend Engineer

London Stock Exchange Group

London, United Kingdom
On-site
React and typescript sdk
Oauth2 and openid connect
Developer-friendly apis
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

Job Summary

  • 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.
  • Design intuitive, developer-friendly APIs that abstract complex authentication flows (OAuth2, OpenID Connect).
  • At LSEG, we invest in excellence. You’ll be part of a high-performing team where your expertise is valued and your impact is visible.

Matching Summary

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.

Skills & Requirements

Must-have

  • React and TypeScript SDK
  • OAuth2 and OpenID Connect
  • Developer-friendly APIs
  • Frontend security best practices
  • Automated tests and CI pipelines

Nice-to-have

  • Deep knowledge of financial markets
  • Passion for clean code and automation
  • Enriching and rewarding experience

Key Requirements

  • Proven experience in frontend development
  • Deep expertise in React, TypeScript, and modern JavaScript
  • Proven experience designing and maintaining SDKs or libraries
  • Strong understanding of OAuth2, OpenID Connect
  • Familiarity with CI/CD pipelines and automated testing

Work Rights

Not specified

Tailored Resume

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