About the role

Role Overview

As a Senior Mobile Engineer you will design, develop, and maintain cross-platform mobile applications for iOS and Android, delivering high-quality user experiences.

Responsibilities

Build intuitive, accessible, cross-platform mobile experiences for iOS and Android
Integrate mobile apps with backend APIs, authentication services, push notifications, and real-time data synchronization
Own the mobile release lifecycle: testing, deployment, app store submissions, and production monitoring
Implement secure local storage, offline capabilities, and strong application performance
Conduct code reviews, mentor team members, and promote mobile development best practices

Requirements

8+ years of professional mobile application development experience
3+ years hands-on Flutter and Dart experience delivering production apps
Experience publishing and maintaining apps on the Apple App Store and Google Play Store
Experience with mobile CI/CD, automated testing, code signing, and deployment processes
Strong understanding of mobile architecture, state management, and scalable design patterns
Knowledge of native iOS/Android concepts: Swift and Kotlin

Nice-to-haves

Not explicitly stated beyond the above experience and platform knowledge.

About Haystack

Haystack is a technology staffing and solutions company that places skilled professionals into high-demand roles across a variety of industries. It focuses on matching experienced engineers to mobile and software opportunities requiring production delivery and ongoing support.