Senior/iOS Engineer II
Core
Build and scale Duolingo's ad serving, mediation, and demand systems to fund the mission of providing universal education.
Role type
Senior iOS Engineer (Monetization/Ads)
Builds
In-product ad formats, ad serving systems, and mediation infrastructure for the Duolingo app.
Domain
EdTech / Mobile Advertising
Deliverable
product features
Required skills
Swift, iOS native development, data structures, algorithms, software design, API design, multithreaded programming, unit testing, iOS performance optimization
Preferred skills
Production-level application maintenance, Cocoa Touch frameworks, cross-functional collaboration with data science and ML teams
Technologies
Swift, Cocoa Touch, iOS SDK
Responsibilities
Develop and maintain native iOS applications, collaborate on software projects with product design and backend aspects, mentor junior engineers and set technical direction
Seniority
Senior, hands-on IC with mentorship responsibilities