Senior Mobile Engineer (React Native)

Build the Future of Global Markets At Arcus, our mission is to empower anyone to build wealth by making investing accessible, affordable, and simple. The team behind Arcus previously built dYdX, helping power over $1.5 trillion in trading volume. Now we're bringing the world's financial markets onchain. Built in partnership with Robinhood Chain and backed by a direct investment from Robinhood Crypto, Arcus brings crypto, stock tokens, commodities, and perpetual futures into one self-custodied account. Our vision is to build the world's best spot and perpetuals exchange - trusted, accessible, and reliable, with deep liquidity and accurate prices. Every asset, 24/7.Experienced team: Google, Meta, Citadel, DRW, IMC Trading, Stripe, Coinbase, and more. Leading backers and advisors: Andreessen Horowitz, Polychain Capital, Brian Armstrong, Fred Ehrsam, Naval Ravikant, Elad Gil, and more. Join us in shaping the next generation of global financial markets. Learn more about working at ArcusRESPONSIBILITIES:Build and enhance the Arcus mobile application using React NativeOwn end-to-end mobile features from architecture and implementation through testing, release, and ongoing maintenance Collaborate closely with product managers, designers, and backend engineers to deliver intuitive and performant mobile experiences Help define the technical direction and architecture of our mobile platform Improve application performance, reliability, observability, and developer experience Work with technologies that directly interface with blockchain networks, wallets, and decentralized protocols Partner with cross-functional teams to deliver best-in-class trading experiences on mobileREQUIREMENTS:You have demonstrated technical excellence through previous work and shipped high-quality mobile applications at scale Strong experience building and maintaining production React Native applications Proficiency in JavaScript and TypeScriptDeep understanding of mobile application architecture, state management, networking, performance optimization, and testing Experience publishing and supporting applications on both iOS and Android platforms Strong product sense and attention to user experience details You are a fast learner who can quickly master new technologies and complex systems 5+ years of software engineering experience, including significant experience building mobile applicationsExperience collaborating with designers, product managers, and backend engineers in fast-paced environmentsNICE TO HAVES:Experience building financial, trading, fintech, or security-sensitive applicationsExperience with native iOS (Swift) and/or Android (Kotlin) development Experience with React Query, Redux, Zustand, or similar state management solutions Experience building highly performant real-time applicationsExperience working with crypto wallets, blockchain technologies, or DeFi products Familiarity with CI/CD pipelines, automated testing, and mobile release processes Experience mentoring engineers and influencing technical directionCS degree or equivalent practical experience Salary range for this role is $210K to $270K (NY). Compensation subject to experience and location. Published salary bands pursuant to transparency laws, and do not include possible variable compensation such as annual merit increases, bonus eligibility, commission, or equity incentive.