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Duolingo

Senior iOS Software Engineer

Duolingo
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senior full-time $177,700-$240,400 USD Pittsburgh, PA

First indexed 18 Jun 2026

Description

Our mission at Duolingo is to develop the best education in the world and make it universally available.

At Duolingo, you'll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments with our massive user base to make data-driven decisions, and educating our users and employees alike.

About the role

The Video Call Experience team is responsible for both the technical foundation and product roadmap for Duolingo's Video Call product , a core feature that allows users to bridge the speaking & listening gap in their language learning journey.

You will:

  • 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

You have:

  • A Bachelor’s degree in Computer Science or a related technical field
  • A solid foundation in computer science with strong competencies in data structures, algorithms, and software design
  • Programming experience in Swift

Exceptional candidates will have:

  • 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
  • Knowledge of iOS SDK performance tools and optimization techniques

The salary range for this role is $177,700-$240,400 USD. We also offer equity compensation and world-class benefits.

This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://job-boards.greenhouse.io/duolingo/jobs/8393272002