TL;DR

Senior React Native Developer (AI): Building production-grade hybrid mobile applications for iOS and Android with an accent on real-time detection, instant notifications, and robust offline support. Focus on leveraging new React Native architecture, platform SDKs, and securing mobile experiences within an AI platform.

Location: Fully remote, available from anywhere in the world. Offices are available in Kyiv, Lviv, or Warsaw for those who prefer onsite work.

Company

%hirify_global% is a tech partnership company focused on helping businesses thrive and strengthening the engineering community, emphasizing trust, transparency, and responsibility.

What you will do

Build production-grade hybrid mobile apps for iOS and Android.
Implement push notifications on both iOS and Android, including action buttons and background handlers.
Manage mobile video experiences, considering prefetching, caching, and playback reliability.
Work with platform SDKs, device-level APIs, and mobile security controls (biometric auth, TLS pinning).
Familiarize with LAN and real-time communication protocols like MQTT, WebSocket, or SSE.
Develop resilient mobile experiences with robust offline support and background syncing.
Automate releases to Google Play and Apple TestFlight, and manage code signing workflows.
Utilize OTA deployment and CI/CD solutions like Expo Updates or CodePush.
Bridge React Native with native iOS (Swift) and Android (Kotlin) components to optimize performance and access platform-specific APIs.

Requirements

4+ years of experience building production-grade hybrid mobile apps for iOS and Android.
Proficiency in TypeScript and knowledge of at least one native language (Swift, Kotlin).
Deep knowledge of React Native (New Architecture).
Hands-on experience with platform SDKs, device-level APIs, push notifications, and mobile video.
Knowledge of mobile security controls (biometric auth, TLS pinning).
Familiarity with LAN and real-time communication protocols (MQTT, WebSocket, SSE), including mTLS and LAN discovery.
Experience building resilient, low-latency mobile experiences with robust offline support and background syncing.
Experience automating releases to app stores and with CI/CD (Expo Updates, CodePush).
Hands-on experience with bridging React Native with native iOS (Swift) and Android (Kotlin) components.
English: Upper-Intermediate or higher.

Nice to have

Experience with device attestation (Play Integrity, DeviceCheck, App Attest).
Experience with MDM/kiosk applications.
Background in building apps with LAN fallback or offline-first patterns.

Culture & Benefits

Competitive salary and compensation package with semi-annual and annual salary reviews.
Exciting, challenging, and stable startup projects with a modern tech stack.
Corporate English courses and professional study compensation, including online courses and certifications.
VIP medical insurance or sports coverage.
Flexible working hours (start your day between 8:00 and 11:30).
Paid vacation (18 working days) and sick leaves.
Cozy offices in Kyiv and Lviv with stable electricity and Wi-Fi (Generator & Starlink).
Compensation for coworking (except for employees from Kyiv and Lviv).
Informal and friendly atmosphere with a focus on work, devoid of bureaucracy and micromanagement.
%hirify_global% has its own charity fund.