Jane Street is seeking a passionate front-end software engineer to design and implement next-generation browser-based tools for trading infrastructure. The ideal candidate will have strong web technology skills, experience building sophisticated UIs, and an interest in typed functional programming.

Primary responsibilities include designing and implementing browser-based tools for trading infrastructure, creating libraries and abstractions that capture common interaction patterns, and developing firm-wide UI development approaches.

Required experience includes strong background in web technologies, understanding of UI frameworks like Vue/React/Angular, practical experience building sophisticated UIs, and appreciation for typed functional programming with languages like TypeScript, Elm, or ReasonML.

The role offers opportunities to work across multiple technology stack layers, collaborate closely with traders and end-users, develop cutting-edge trading tools, and work in a technologically innovative environment that values collaborative problem-solving and advanced programming paradigms.

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