# Senior iOS Engineer

Hiring organization: [Duolingo](https://career.thegoodapps.co/organizations/duolingo)

Canonical page: https://career.thegoodapps.co/jobs/591146ab-77cb-4374-8ffc-8bf4fc0f5113

Listed on Duolingo's own careers site. Applications go to them directly.

- Seniority: Senior
- Location: New York, NY
- Salary: 177700 – 240400 USD per year

## Summary

This is a senior-level iOS engineering role focused on monetization systems at Duolingo, either on the ads team building ad serving and in-product ad experiences, or the in-app purchases team handling the gem economy and cosmetics shop. The position suits experienced Swift developers who want to mentor junior engineers while working on high-impact product features at significant scale.

_Our summary, not Duolingo's wording._

## Skills named

iOS SDK, Swift, Unit Testing

## Required

- Bachelor's degree in Computer Science or related technical field
- Data structures and algorithms competency
- Software design fundamentals
- Swift programming experience

## Nice to have

- Production-level Swift application experience
- Clean API design
- Multithreaded programming experience
- Unit testing and testable code practices
- iOS performance profiling and optimization knowledge

Apply on Duolingo's site: https://careers.duolingo.com/jobs/8393272002?gh_jid=8393272002