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MacOS Software Engineer

Jane Street

New York, New York, United States Full-Time June 12, 2026
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Opportunity Description

About the Position


We're looking for an experienced Software Engineer with deep macOS software experience who is also willing to work in other languages and on other platforms.


In this role, you’ll help build and maintain macOS internal applications and services used by our colleagues across the firm. Our macOS footprint is growing, and we want someone who can lead on the platform side of that work—both through hands-on development and guiding the rest of the team around what's reasonable to build, and how to build it well. The work ranges from user-facing applications to lower-level system work and interfacing with the backend services that support it.


While macOS and Swift will be your area of focus, you won't be pigeonholed there—you’ll also receive training to work in OCaml. Much of what our team owns is cross-platform, and you'll contribute to services and applications across a variety of languages and stacks as part of a small, collaborat...

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