Top iOS Developer Jobs

As a Senior iOS Engineer, you will develop features for Duolingo's short-form lessons, collaborate on software projects, mentor junior engineers, and optimize applications. Responsibilities include building iOS apps in Swift and enhancing user engagement in educational content.

Founding iOS Engineer to build the app's core intelligence layer. Must implement production CallKit and on-device continuous Speech Framework recognition, integrate with SwiftUI/CoreData, and optionally add Dynamic Island Live Activity via WidgetKit. Equity-only founding role; product details under NDA.

Own and improve Sekai's iOS app: ship fast, polished consumer features; ensure performance, reliability, and release velocity; apply modern Apple platform practices; collaborate with Product, Design, Backend, and Mobile teams; and use AI tools to accelerate development and iteration.

The iOS Engineer will develop and scale a consumer app, design user experiences, improve app performance, and maintain code quality.