Mobile Application Developer - React native

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 Expo expertise to build offline-first mobile experiences for challenging environments. You’ll influence architecture, leverage Expo ecosystems, and deliver biometric attendance workflows and high-performance apps that work where connectivity is unreliable.

Candidates should have 5+ years of mobile development, deep React Native and TypeScript skills, and hands-on experience with Expo, EAS Build & Updates, and data synchronization.

Qualifications

• 5+ years of mobile development experience.
• 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.

Skills

React Native

TypeScript

Offline-first

Performance optimization

iOS/Android deployment

Tools

Expo

EAS Build & Updates

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 tis role is 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
• 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.