# Senior iOS Software Engineer

**Company**: Duolingo
**Location**: Pittsburgh, PA
**Experience**: senior
**Job type**: full-time
**Salary**: $177,700-$240,400 USD
**Category**: Engineering
**Industry**: Technology

**Apply**: https://job-boards.greenhouse.io/duolingo/jobs/8393272002?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_61947f4e-4b0

## 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.

## Skills

### Required
- Swift
- iOS development
- computer science
- data structures
- algorithms
- software design

### Nice to have
- multithreaded programming
- unit testing
- testable code
- iOS SDK performance tools
- optimization techniques
- API design

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Source: [Apply at job-boards.greenhouse.io](https://job-boards.greenhouse.io/duolingo/jobs/8393272002?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)