MacOS Platform Engineer — UI, CI/CD, & Cross‑Platform

Janestreet; New York (NY); On-site; USD 120,000 - 160,000; Full time

Job summary

Janestreet is seeking an experienced Software Engineer specializing in macOS development to build and maintain internal applications. The ideal candidate has significant experience in the Apple ecosystem and a strong knowledge of Swift and Objective-C.

You'll lead macOS engineering practices while collaborating with a small, dynamic team, ensuring best practices and effective tooling are in place.

This role also offers opportunities to train in other languages and platforms as part of a diverse work environment.

Qualifications

• Significant professional experience in macOS applications.
• Strong expertise in the Apple ecosystem.
• Deep understanding of macOS internals and application structuring.
• Familiarity with modern Apple development tools.

Responsibilities

• Build and maintain macOS internal applications.
• Establish CI/CD pipelines and improve development tooling.
• Provide technical guidance on macOS engineering practices.
• Collaborate with engineers and stakeholders to deliver solutions.

Skills

macOS application development

Swift programming

Objective-C knowledge

UI development with SwiftUI

CI/CD and automated builds

Effective communication

Collaboration skills

Job description

Janestreet is seeking an experienced Software Engineer specializing in macOS development to build and maintain internal applications. The ideal candidate has significant experience in the Apple ecosystem and a strong knowledge of Swift and Objective-C.

You'll lead macOS engineering practices while collaborating with a small, dynamic team, ensuring best practices and effective tooling are in place.

This role also offers opportunities to train in other languages and platforms as part of a diverse work environment.