Senior Frontend Engineer - SDK & Secure Auth (React/TS)

London Stock Exchange Group; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Benefits offered by this job

Competitive compensation

Flexible hybrid work model

Opportunities for continuous learning

Job summary

A leading global financial services firm is looking for a Senior Frontend Developer to join their Customers Identity & Access Management team. This role involves owning and maintaining a JavaScript SDK built with React and TypeScript, ensuring secure integration of their authentication system. The ideal candidate has proven experience in frontend development with strong expertise in React and TypeScript, along with knowledge of OAuth2 and OpenID Connect. Opportunities for continuous learning and a hybrid work model are offered.

Qualifications

• Proven experience in frontend development with expertise in React and TypeScript.
• Experience designing and maintaining SDKs or libraries used by other developers.
• Strong understanding of secure authentication flows.

Responsibilities

• Own and maintain a JavaScript SDK built with React and TypeScript.
• Design developer-friendly APIs that abstract complex authentication flows.
• Collaborate with backend engineers for SDK functionality alignment.

Skills

Frontend development experience

React

TypeScript

OAuth2

OpenID Connect

Clean code practices

Automated testing

Job description

A leading global financial services firm is looking for a Senior Frontend Developer to join their Customers Identity & Access Management team. This role involves owning and maintaining a JavaScript SDK built with React and TypeScript, ensuring secure integration of their authentication system. The ideal candidate has proven experience in frontend development with strong expertise in React and TypeScript, along with knowledge of OAuth2 and OpenID Connect. Opportunities for continuous learning and a hybrid work model are offered.