JavaScript/ UI Lead Developer

Job Title: JavaScript/ UI Lead Developer Location: Seattle WA - Onsite Must Requirement: Work in PST hours. Job Description / Skill Matrix: We are seeking a highly skilled and experienced JavaScript/ UI Lead Developer to join our team at Fidelity Information Services, LLC. This role requires a strong background in TypeScript/JavaScript and the ability to lead the development of sophisticated web applications. Key Responsibilities: Significant development experience using TypeScript/JavaScript. Expertise in JavaScript is mandatory, and experience with TypeScript is highly preferred. Proficiency with tools, libraries, and frameworks such as Webpack, Jest, Selenium, JS ES6, React/Vue.js/Next.js, and Storybook. Ability to bootstrap frontend projects from initial code to Minimum Viable Product (MVP) to General Availability (GA). Experience building web applications as a platform for client integration. Ability to design APIs for backend-of-frontend development. Building web applications that can be embedded within client applications. Experience working with existing design systems to create reusable components, white-labeled frontend products, and support for internationalization (I18n) and accessibility. Ability to work in ambiguous environments and demonstrate a high level of ownership. Experience building web SDKs for both web applications and mobile web views. Ability to set up Single Sign-On (SSO) for web applications. Experience Level: 8 years of relevant experience. Minimum Mandatory Skills: Azure Solution Architecture Design Desired Skills: TypeScript/JavaScript Webpack Jest Selenium JS ES6 React/Vue.js/Next.js Storybook