Description
We are seeking a Senior Frontend Developer to join our Customers Identity & Access Management team at LSEG.
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.
Responsibilities:
- Own and maintain a JavaScript SDK built with React and TypeScript, enabling secure integration with our custom Secure Token Service.
- Design intuitive, developer-friendly APIs that abstract complex authentication flows (OAuth2, OpenID Connect).
- Ensure the SDK is secure, performant, and easy to integrate across a wide range of frontend applications.
- Collaborate with backend engineers to align SDK functionality with evolving identity protocols and token flows.
- Build automated tests and CI pipelines to ensure quality, reliability, and backward compatibility.
- Write clear documentation and sample apps to support internal and external developers.
- Stay current with frontend security best practices and contribute to platform-wide improvements.
Requirements:
- Proven experience in frontend development, with deep expertise in React, TypeScript, and modern JavaScript.
- Proven experience designing and maintaining SDKs or libraries used by other developers.
- Strong understanding of OAuth2, OpenID Connect, and secure authentication flows.
- Familiarity with CI/CD pipelines, automated testing, and versioning strategies for SDKs.
- Experience with frontend performance optimization, cross-browser compatibility, and accessibility standards.
- Passion for clean code, automation, and continuous improvement.
- Excellent interpersonal skills and a passion for developer experience and security.
Benefits:
- Competitive compensation with performance-based rewards.
- A flexible hybrid work model that supports work-life balance.
- Access to cutting-edge tools and infrastructure to do your best work.
- Opportunities for continuous learning, including certifications, conferences, and internal mobility.
- A collaborative culture that values technical mastery, ownership, and innovation.
- The chance to work on a globally critical system that powers secure financial transactions across markets.