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Senior iOS Software Engineer

Duolingo

$177,700 - $240,400
Dec 2, 2025
New York, NY, US
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Duolingo is looking to develop the best education in the world and make it universally available by building technology that changes how people around the world learn Math.

Requirements

  • Programming experience in Swift
  • Strong proficiency in Swift, with proven ability to build and maintain production-level applications
  • Strong technical knowledge of iOS mobile application development for iPhone/iPad using Swift with Cocoa Touch and related frameworks
  • Experience designing clean and maintainable APIs
  • Experience with multithreaded programming
  • Experience writing unit tests and testable code

Responsibilities

  • Collaborate on software projects with product design and backend aspects
  • Develop, release, and maintain native iOS applications, primarily in Swift
  • Mentor and set technical direction for junior engineers across the company

Other

  • A Bachelor’s degree in Computer Science or a related technical field
  • Travel requirements not mentioned
  • Clearance requirements not mentioned
  • Duolingo is proud to be an Equal Employment Opportunity employer
  • By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice