Senior Lead Software Engineer - Frontend Developer
Core
Design and maintain a JavaScript SDK for secure authentication integration across client applications.
Role type
Senior Lead Frontend Developer (SDK Engineering)
Builds
JavaScript SDKs, developer documentation, sample apps
Domain
Financial markets infrastructure, Identity & Access Management
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
React, TypeScript, modern JavaScript, SDK design, OAuth2, OpenID Connect, CI/CD pipelines, automated testing, frontend performance optimization, cross-browser compatibility, accessibility standards
Preferred skills
Experience designing libraries used by other developers, passion for developer experience, clean code, automation
Technologies
React, TypeScript, Secure Token Service
Responsibilities
Own and maintain a JavaScript SDK built with React and TypeScript; Design intuitive, developer-friendly APIs that abstract complex authentication flows; Ensure the SDK is secure, performant, and easy to integrate; Collaborate with backend engineers to align SDK functionality with evolving identity protocols; 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
Seniority
Senior, hands-on IC