Senior Mobile Frontend Engineer
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Job Description
Senior Mobile Developer leading frontend development of iOS and Android applications for Sequencing.com. Focused on building high-quality mobile experiences using React Native.
Responsibilities:
- Own and drive frontend development for our native iOS and Android apps using React Native
- Translate product specs and Figma designs into high-quality, performant mobile UI
- Collaborate closely with backend engineers to integrate APIs, real-time data, and AI-powered features
- Ensure consistency, accessibility, and platform-appropriate behavior across iOS and Android
- Optimize app performance, startup time, and responsiveness on modern devices
- Contribute to architectural decisions, component design, and state management patterns
- Lead code reviews and help maintain the overall quality bar for the mobile codebase
- Partner with QA to support testing, bug fixes, and release readiness
- Support App Store and Google Play release processes and ongoing maintenance
Requirements:
- 6+ years of professional frontend mobile development experience
- 4+ years of hands-on experience building production apps with React Native
- Strong knowledge of TypeScript and modern React patterns
- Solid understanding of iOS and Android platform differences and constraints
- Experience integrating APIs
- Familiarity with mobile performance optimization and debugging
- Comfort working from product requirements and design specs without heavy oversight
- Strong communication skills and ability to collaborate across disciplines
- Experience with Expo and EAS build workflows
- Experience with animations, gestures, and rich interactive UI
- Familiarity with mobile analytics, logging, and monitoring tools
- Experience working on apps with AI-driven or real-time features
- Prior ownership of mobile releases in the App Store and Google Play.
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