We are seeking a highly skilled Lead JavaScript Engineer to lead our front-end development efforts. You will be responsible for designing, developing, and maintaining high-performance JavaScript libraries and ensuring the scalability and performance of our front-end applications.

Key Responsibilities:
* Lead the development of core JavaScript libraries using vanilla JavaScript and TypeScript.
* Ensure code quality and maintainability through code reviews and testing.
* Optimize front-end performance and ensure web accessibility.
* Collaborate with cross-functional teams to deliver high-quality software.
* Mentor and guide junior developers.

Required Skills:
* Strong proficiency in Core JavaScript and TypeScript.
* Experience in developing JavaScript libraries.
* Understanding of Browser Fundamentals and Web Accessibility.
* Experience with HTML and CSS.