> Markdown version of [/jobs/ext/1101485-ios-engineer-ii](https://www.wearedevelopers.com/jobs/ext/1101485-ios-engineer-ii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # iOS Engineer II - **Company:** Duolingo, Inc. - **Location:** New York, NY, United States - **Experience:** Expert - **Salary:** $177,700.0 - $240,400.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), IOS Applications, Apple IOS, Unit Testing, Computer Programming, Data Structures, IOS SDK, Machine Learning, Software Engineering, Multithreading, Backend, Information Technology, Optimization Algorithms, Performance Monitor, Cocoa Touch - **Published:** June 9, 2026 - **Apply:** https://www.dice.com/job-detail/f74a5628-5b22-43fb-ab48-4f988e911645 ## About the Role * 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 offered salary is dependent upon several factors, including work experience, skills, and internal peer comparisons. The posted range is subject to change in the future. For this role, base salary is supplemented by equity compensation. We encourage you to talk with your recruiter for more information related to compensation for this role! ## Description We are hiring for multiple levels for any one of the following teams. Leveling is usually determined once all interviews are completed. Notifications TeamAs an iOS engineer on the Notifications team, you will build features that empower learners to build long-term habits by improving how we schedule, personalize, and deliver notifications. You will design and implement meaningful notification experiences while collaborating with backend, data science, and product teams. Notifications are fundamental to Duolingo, and we're looking for engineers who are energized about experimenting and shipping features end-to-end. Ads Team: Duolingo's Monetization pillar builds the systems that fund our mission: from subscription packaging and advertising to ML-powered personalization and beyond. As a Senior iOS Engineer on Ads, you'll work on a product engineering team responsible for growing and scaling Duolingo's ads business: bringing high-quality ads that delight learners, fit seamlessly into our product experience, and meaningfully contribute to Duolingo's bottom line. The team will own the systems behind ad serving, mediation and demand, in-product ad formats and surfaces, and more. You'll work cross functionally with product, design, data science, machine learning, and ad operations. 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 ## Related Videos - [Hacking iOS and Developing for Airbnb with Nicolas Haunold, Software Engineer at Airbnb](https://www.wearedevelopers.com/videos/100361-hacking-ios-and-developing-for-airbnb-with-nicolas-haunold-software-engineer-at-airbnb) - [Harnessing Apple Intelligence: Live Coding with Swift for iOS](https://www.wearedevelopers.com/videos/1515-harnessing-apple-intelligence-live-coding-with-swift-for-ios) - [Xcode development redefAIned](https://www.wearedevelopers.com/videos/100195-xcode-development-redefained) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [From Zero to Mobile Developer in 45 Minutes With SwiftUI](https://www.wearedevelopers.com/videos/183-from-zero-to-mobile-developer-in-45-minutes-with-swiftui) - [Let your iOS app read texts](https://www.wearedevelopers.com/videos/167-let-your-ios-app-read-texts) ## Related Articles - [How Much Does a Software Engineer Make? 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