Senior Mobile Engineer

This Android Engineer on the Growth team builds mobile experiences that drive activation, conversion, and retention for ChatGPT's subscription products, helping millions of users discover value and access paid features. The role focuses on mobile development and growth-oriented feature implementation.

This role owns Android features end-to-end at Medium, from understanding user needs through building, shipping, and monitoring performance. The engineer will write idiomatic Kotlin and Compose UI, collaborate with design and cross-platform engineers, and shape product direction in an ambiguous environment. The role requires fluency in modern Android architecture and the ability to work credibly on at least one other platform (web, iOS, or backend).

This senior role builds and optimizes the Android experience for a high-impact AI application. Responsibilities include crafting intuitive user interfaces, driving technical decisions, running A/B tests, and ensuring high performance. Requires 5+ years of experience with Kotlin, Jetpack Compose, Coroutines, and Flow.

Develops and maintains Android applications, focusing on performance, reliability, and user experience. Collaborates with cross-functional teams to deliver features and improvements. Requires deep knowledge of Android development and best practices.

This Senior Back End Engineer role designs and ships backend services for Ground News, a fast-growing consumer platform. The engineer will work within the Core Experience pod, focusing on technical excellence, operational rigor, and improving observability, reliability, and performance. This hands-on role reports to the Head of Engineering and is critical for scaling to millions of readers.

This role owns the build-out and scaling of Google paid acquisition, managing Search, Performance Max, Demand Gen, and YouTube campaigns. The manager will set account architecture, bidding strategy, and testing frameworks, while partnering with agencies to develop YouTube creative and optimize landing pages. Success is measured by disciplined CAC and subscriber payback metrics.

This Senior Data Engineer role builds the analytical foundation for Ground News, developing data integrations and scalable, conformed data models. The engineer will work within the ML chapter and Platform & Infrastructure pod, serving KPIs for Growth, Core Experience, and Content Intelligence teams. This hands-on role focuses on enabling analysts to self-serve their data needs.