Principal Mobile Engineer
Core
Define and build the foundational host application for Payoneer's mobile platform, enabling product teams to independently contribute features while maintaining coherence, performance, and stability across iOS and Android.
Role type
Principal Mobile Engineer (Platform Architecture)
Builds
A unified mobile host application with common foundations (observability, networking, identity, release tooling) and a standardized contribution model for product teams.
Domain
Fintech / Mobile Platform Engineering
Deliverable
production ML models | product features | infrastructure
Required skills
Native iOS (Swift, UIKit, SwiftUI) or Android (Kotlin, Jetpack, Compose) expertise, cross-platform framework evaluation (Flutter, React Native, KMP), modular architecture design, CI/CD pipeline management, mobile performance optimization, observability instrumentation, stakeholder communication.
Preferred skills
Experience integrating AI capabilities into mobile applications, on-device model optimization, conversational UI patterns.
Technologies
Swift, Kotlin, Flutter, React Native, Jetpack Compose, RxJava, Gradle, CI/CD tools.
Responsibilities
Evaluate and decide on the mobile tech stack (native vs cross-platform), design the host application architecture and module boundaries, define the contribution model and public API surface for product teams, own performance budgets (startup time, binary size, frame rate, memory), manage crash-free rate and stability commitments, build and maintain the release and rollout pipeline.
Seniority
Principal, hands-on IC with strategic scope