Bullish · 2 days ago
Senior Mobile Engineer, CoinDesk Media
New York, United States
Full-time
Hybrid
Senior Level
$180K/yr - $240K/yrBullish is an institutionally focused global digital asset platform that provides market infrastructure and information services. They are seeking a Senior Mobile Engineer with expertise in React Native and Expo to develop CoinDesk's next-generation mobile application, ensuring optimal performance and robust features for users in the cryptocurrency space.
BlockchainCryptocurrencyFinancial Services
Responsibilities
Build and maintain the CoinDesk mobile application using React Native and Expo, delivering real-time crypto market data, news, and interactive features to millions of users across iOS and Android
Develop highly performant and stable mobile experiences capable of handling real-time market data streams, push notifications, and complex user interactions
Collaborate with product teams to implement user-centric features, optimize app performance, and ensure the mobile experience aligns with CoinDesk's brand and user expectations
Design and integrate mobile-optimized APIs and work with backend systems to ensure seamless data flow between mobile clients and server infrastructure
Implement comprehensive testing strategies including unit, integration, and end-to-end testing to ensure app reliability and reduce production issues
Monitor and improve app stability using crash reporting, performance monitoring, and user analytics to proactively identify and resolve issues
Qualification
Required
Hands-on mobile development expertise with React Native for building cross-platform applications
Strong knowledge of automated testing practices including experience writing unit, integration, and end-to-end tests using frameworks like Jest, Testing Library, Detox, or Playwright
Familiarity with CI/CD pipelines and experience integrating testing and deployment processes into GitHub Actions or similar platforms
Experience with debugging and improving app stability using tools like DataDog, Sentry, Firebase Crashlytics, or similar platforms to track crashes and performance issues
Experience working with REST APIs and backend systems including the ability to debug endpoints and collaborate effectively with backend teams
Strong communication and collaboration skills with the ability to work cross-functionally while proactively contributing to technical discussions
Proactive mindset with a demonstrated ability to identify problems early and take initiative in driving projects forward
Preferred
Up-to-date understanding of the React Native and Expo ecosystem including experience with library upgrades and long-term maintenance strategies
Experience with observability tooling such as Datadog, LogRocket, or similar platforms for logging, monitoring, and performance tracking
Experience writing or maintaining internal documentation with the ability to create clear documentation for both technical and non-technical audiences
Exposure to OTA updates and app store submission processes including familiarity with EAS Update, Apple App Store, and Google Play Store processes
Mobile accessibility and UI/UX experience with awareness of platform-specific design conventions and accessibility standards
Security-minded development experience including familiarity with secure data handling, authentication flows, and mobile security best practices
Benefits
Discretionary annual target bonus
Performance incentives/benefits
Company
Bullish
The Bullish digital asset exchange offers market-leading order depth and consistently tight spreads all in a regulated environment.
Founded in 2021
201-500 employees
H1B Sponsorship
Bullish has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (3)
2024 (1)
2023 (7)
2022 (9)
Funding
Current Stage
Growth StageTotal Funding
$300M2021-05-11Series Unknown· $300M
Leadership Team
Tom Farley
CEO
Recent News
2025-09-12
Company data provided by crunchbase