About the role

Role Overview

Senior Mobile Engineer to design, develop, and maintain cross-platform mobile applications for iOS and Android.

Responsibilities

Design, develop, and maintain cross-platform mobile apps.
Build intuitive, accessible, high-quality mobile user experiences.
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 reliable app performance.
Conduct code reviews, mentor team members, and promote mobile best practices.

Requirements

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

Nice to Have / Additional

Experience with real-time synchronization patterns and production monitoring practices.

About Haystack

Haystack is a technology staffing and solutions company that places skilled professionals into high-demand roles across multiple industries. It supports companies in building and delivering innovative technology by matching talent to specialized needs.