Build and scale consumer-facing mobile experiences for Krak using React Native and TypeScript. The role owns feature delivery end to end and requires at least three years of web or mobile development experience, with emphasis on performance, testing, and intuitive UX.

Build and ship secure native iOS or Android features for an enterprise AI workspace, collaborating with designers and researchers to productionize advanced models. Requires extensive production mobile experience, Kotlin or Swift expertise, and the ability to work across codebases in a fast-moving environment.

Build and own complex React Native features for a high-traffic sports platform, contributing to mobile architecture, performance, testing, and reliability. The role also guides junior engineers and collaborates with Product, Design, and QA in a fully remote environment.

Build cross-platform React Native applications and native iOS/Android BLE SDKs for EEG and wearable devices. The role requires 8+ years of mobile development experience, strong UX and performance ownership, and familiarity with health data streams and regulated environments.

Build and scale patient-facing iOS and Android applications with React Native, owning features from design through release while improving architecture, performance, and quality. The role requires 5+ years of software engineering experience, strong React Native and TypeScript expertise, and mentoring ability.

Senior Software Engineer specializing in React Native to build and scale Underdog's core betting experience across mobile and web, from slip creation to settlement. Requires 7+ years experience, cross-platform problem solving, and leadership in design and coaching.

Senior iOS engineer shaping Neighborhoods, a new local commerce network connecting Cash App and Square. Lead cross-team mobile architecture and hands-on SwiftUI development while using AI tools to accelerate delivery, mentor engineers, and raise the technical bar.

Build and maintain React Native mobile apps for iOS and Android at Upstart. Collaborate with product, design, and backend teams to deliver performant, scalable user-facing features that improve the borrower experience. Requires 4+ years experience and a Bachelor's degree.

Senior Android Engineer building and evolving Reddit's cross-platform design system and reusable UI components with Kotlin and Jetpack Compose. Requires 6+ years experience creating shared UI infrastructure, performance optimization, and accessibility best practices.

Build secure, scalable authorization and session-management infrastructure across Spotify’s native iOS and shared C++ platforms. The role requires strong C++ skills, native iOS/Swift experience or aptitude, and experience with security-sensitive systems and OAuth 2.0.

Build and architect scalable Flutter mobile applications for a modular business app platform. The role requires 4+ years of engineering experience, including 3+ years with Flutter/Dart, plus expertise in mobile architecture, performance, CI/CD, and AI-assisted development.

Lead mobile engineering for PrizePicks' React Native app, owning architecture, developer tooling, and complex cross-platform features while mentoring engineers and integrating with Go/Rails backends.

Build SDKs and on-device systems for native app messaging and data collection. Own cross-platform development across iOS, Android, and React Native with backend integration.

Develops polished, gesture-driven mobile interfaces in React Native for Kraken's crypto app, focusing on fluid interactions, animations, and performance optimization. Requires deep React Native expertise, interaction design sensibility, and a portfolio of shipped work.

Develop and optimize production Flutter features for a high-scale mobile app, improving performance, reliability, and user experience across iOS and Android. Requires 4+ years of software engineering experience, including 2+ years with Flutter and Dart in production.

Designs, develops, and optimizes Bluetooth Low Energy transport layer for peer-to-peer data sync in distributed systems. Requires 7+ years experience with deep BLE expertise and mobile development in C++/C/Kotlin for iOS/Android, plus Rust willingness.