React Native Developer

Join to apply for the Senior Mobile App Developer role at Galaxy Who We Are Galaxy is a global leader in digital assets and data center infrastructure, delivering solutions that accelerate progress in finance and artificial intelligence. We believe that blockchain and digital asset innovation will transform how value moves through the world – and we’re building the products and services to make that future a reality. Our institutional digital assets platform spans trading, investment banking, asset management, staking, self‑custody, and tokenization technology. We also invest in and operate cutting‑edge data center infrastructure to power AI and high‑performance computing, addressing the growing demand for scalable energy and compute in the U.S. We work at the intersection of finance and technology, helping institutions, startups, and developers navigate a digitally native economy. Led by CEO and Founder Michael Novogratz, our team blends deep crypto expertise with institutional experience and a shared commitment to shaping the future of Web3 and AI. Galaxy is headquartered in New York City, with offices across North America, Europe, the Middle East, and Asia. We are a diverse team of free thinkers, and fast movers united to help investors and creators energize the global economy. We are looking for individuals who thrive in a culture of builders and overachievers and embrace high performance, transparent feedback, and a mission‑first approach. Our culture shapes our way of working and gets us where we want to be. Who You Are This role is a Senior Back End Developer for an exciting new business initiative at Galaxy. In this position, you’ll design, develop, and optimize robust, scalable software back‑end that powers our web and mobile applications for a new product offering. You will join a team of back‑end developers, ensuring the reliability, security, and performance of our platforms while collaborating with front‑end, product, and infrastructure teams. Your expertise will help drive the architecture of our product offerings, supporting Galaxy’s mission to innovate in the crypto economy. This role is fully remote and candidates must be in either eastern or central time zone to qualify. What You’ll Do Design, develop, and maintain high‑performance back‑end systems, APIs, and databases that support the business’s web and mobile applications. Help foster a culture of technical excellence, collaboration, and continuous learning. Collaborate with front‑end developers, product managers, and DevOps teams to ensure seamless integration and delivery of features and services. Architect scalable, secure, and efficient server‑side solutions that meet fintech industry standards and handle high transaction volumes. Implement best practices for code quality, testing, and deployment, including code reviews and automated testing frameworks. Stay current with emerging technologies and trends in back‑end development, blockchain, and fintech to recommend innovative improvements. What We’re Looking For 7+ year of relevant experience Strong experience building mobile applications using React Native for iOS and Android Hands‑on experience working on complex features like dynamic forms, push notifications, deep linking, media upload, offline support, etc. Strong knowledge of React Native internals and practical awareness of Android/iOS platform behaviors, bugs, and quirks. Ability to debug performance issues using Flipper, Xcode, Android Studio Familiarity with Crashlytics, performance monitoring, and agile workflows Own code quality and best practices modularity, code reuse, maintainability, and debugging across native boundaries Experience shopping apps to Play Store and App Store Experience integrating with REST APIs, GraphQL, and third‑party SDKs Strong and clear communication skills Take responsibility and ownership of work Work well in a team environment Bonus Points Any experience in financial markets or brokerages or crypto or mortgage Benefits (US) Competitive base salary and discretionary bonus Flexible Time Off (i.e. unlimited paid vacation days) Company paid Holidays (11) Company paid sick leave Company‑paid health and protective benefits for employees, partners, and other dependents 3% 401(k) company contribution Generous paid Parental Leave Free virtual coaching and counseling sessions through Headspace Opportunities to learn about the Crypto industry Fully remote team Smart, entrepreneurial, and fun colleagues Employee Resource Groups Benefits may vary depending on location. Employer Diversity and Inclusion Statement Galaxy respects diversity and seeks to provide equal employment opportunities to all employees and job applicants for employment without regard to actual or perceived age, race, color, creed, religion, sex or gender (including pregnancy, childbirth, lactation and related medical conditions), gender identity or gender expression (including transgender status), sexual orientation, marital or partnership or caregiver status, ancestry, national origin, citizenship status, disability, military or veteran status, protected medical condition as defined by applicable state or local law, genetic information or predisposing genetic characteristic, or other characteristic protected by applicable federal, state, or local laws and ordinances. We will endeavor to make a reasonable accommodation to the known limitations of a qualified applicant with a disability unless the accommodation would impose an undue hardship on the operation of our business. 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