Android Developer

Cierti; Miami (FL); On-site; USD 120,000 - 160,000; Full time

Job summary

Cierti in Miami is seeking a senior React Native developer with must-have Expo experience to shape mobile solutions in challenging environments. You will craft offline-first architectures, biometric attendance workflows, and camera-first user experiences for reliability where network coverage is poor.

You'll influence architecture and product direction while delivering high-performance apps across iOS and Android, leveraging Expo, React Native, and TypeScript to drive the next generation of

Qualifications

• 5+ years of mobile development experience in Android.
• Strong React Native and TypeScript expertise.
• Deep experience with Expo, EAS Build & Updates.
• Knowledge of synchronisation, local persistence, and conflict resolution.
• Strong performance optimisation skills.
• Experience shipping apps to both iOS and Android stores.

Responsibilities

• Build offline-first mobile architecture for field environments.
• Develop biometric attendance workflows and camera-first user experiences.
• Create high-performance apps with reliability in network-challenged areas.
• Influence architecture, technical direction, and product decisions.
• Work with Expo ecosystems to deliver expo-based mobile solutions.

Job description

Miami, Onsite

Must have Expo experience

Building mobile software that works where the internet doesn't.

Working for a forward thinking tech business that is solving a real world problem in their niche. They are looking for a senior React native developer with a must have of Expo experience to be considered. They are working in the whole Expo ecosystems and are looking to create mobile apps that can be sued where network coverage is unreliable, environments are challenging, and reliability is critical.

This isn't another CRUD application, and this is where its different. You'll be building, offline-first mobile architecture, biometric attendance workflows, camera-first user experiences, fraud-resistant location and attendance systems and high-performance applications used in real-world field environments

You'll work with modern React Native and Expo technologies while having significant influence over architecture, technical direction, and product decisions.

Experience

• 5+ years of mobile development experience in Android


• Strong React Native and TypeScript expertise


• Deep experience with Expo, EAS Build & Updates


• Knowledge of synchronisation, local persistence, and conflict resolution


• Strong performance optimisation skills


• Experience shipping apps to both iOS and Android stores

In addition, any of the following would be beneficial to show

• Computer Vision or On-Device ML


• Mobile Security / Anti-Tampering


• Bluetooth, NFC or Hardware Integration

These are hard challenges, so if you enjoy solving engineering problems and building products that operate in the real world this could be for you.