Front End Software Engineer

2 Hours ago • All levels

Job Summary

Job Description

The Front End Software Engineer will be involved in the design and implementation of next-generation browser-based tools for operating the trading infrastructure. This role requires building flexible and powerful tools with a high UX bar for expert users. The engineer will identify opportunities to create libraries and abstractions, improving development practices and the firm-wide approach to UI development. The job involves working on front-ends, back-ends, middleware, and databases, collaborating closely with traders and end-users to understand their needs.
Must have:
  • Strong background in web technologies (CSS, DOM)
  • Understanding of UI frameworks (Vue, Angular, React, Flutter)
  • Practical experience building sophisticated UIs
Good to have:
  • Interest in typed functional programming
  • Experience with languages like Elm, ReasonML, Purescript, and Typescript

Job Details

We’re looking for a software engineer who is passionate about front-end development, user-interface design, and typed functional programming. You would take part in the design and implementation of our next-generation of browser-based tools for operating our trading infrastructure.

We’re building for expert users, which means we want to maintain a high UX bar, and at the same time create tools that are flexible and powerful enough to satisfy the needs of deeply engaged users.

Beyond working on the individual tools, we want someone who can find opportunities to create libraries and abstractions that capture common interaction idioms, and to sharpen our development practices and firm-wide approach to UI development.

We’re looking to add someone with a particular mix of skills and experience:

  • A strong background in web technologies, including browser fundamentals like CSS and the DOM, and an understanding of the principles of UI frameworks like Vue, Angular, React, and Flutter.
  • Practical experience building sophisticated UIs in the browser. We’re looking for someone who loves the detailed polishing that’s needed to build elegant and highly usable UIs.
  • An interest in and appreciation of typed functional programming as an approach to UI construction. Experience with languages like Elm, ReasonML, Purescript, and Typescript is a plus. (we don’t expect experience in OCaml in particular.)

The role will provide opportunities to work in multiple parts of the stack, including front-ends, back-ends, middleware, and databases. The job will also involve working closely with traders and other end-users to better understand their needs.

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About The Company

Jane Street is a quantitative trading firm with offices in New York, London, Hong Kong, Singapore, and Amsterdam. We are always recruiting top candidates and we invest heavily in teaching and training. The environment at Jane Street is open, informal, intellectual, and fun. People grow into long careers here because there are always new and interesting problems to solve, systems to build, and theories to test.



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