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Staff iOS Engineer at OpenSea. Location Information: United States. The world’s leading peer-to-peer marketplace for NFTs for buyers, sellers and collectors. Take a major role in the design & development of the OpenSea iOS app, driving a modern, scalable, and maintainable codebase primarily built with SwiftUI and MVVM architecture. Collaborate closely with product, design, and engineering teams to build seamless, user-friendly mobile experiences for millions of users. Take ownership of features from conception through deployment. Contribute to the architecture and evolution of the mobile codebase, including cross-platform components where applicable. Integrate with GraphQL APIs and implement real-time data updates to deliver dynamic and responsive user interfaces. Advocate for and adopt AI-assisted development tools to accelerate productivity and improve code quality. Help shape the future direction of OpenSea's mobile platform by providing technical leadership and innovative solutions. Deep expertise in Swift and SwiftUI, with solid understanding of MVVM architecture and modern iOS frameworks. Experience working with Kotlin Multiplatform Mobile (KMP) and enthusiasm for contributing to cross-platform shared code. Solid understanding of developing API-driven mobile apps across REST & GraphQL. Strong systems engineering skills and a generalist mindset to tackle both frontend and backend challenges within mobile development. Hands-on experience with real-time data updates and complex UI interactions. Proven track record of adopting and leveraging AI tools to accelerate development productivity. Comfortable working in a fast-paced, collaborative environment with a focus on shipping polished features. Prior experience in fintech or crypto-related products preferred. High ownership mentality. Pay range:. $180K - $270K. Health Benefits: We cover 100% Dental/Vision/Medical for employees and 90% for dependents. Flexible Time Off Policy. Parental Leave: 16 Weeks of Paid Parental Bonding & up to 8 additional weeks for the birthing parent. Mental Health: Access to Spring Health, covering 8 therapy & 8 coaching sessions per year. 11 Company Holidays. Fidelity 401K Plan. Internet/Mobile Reimbursement Plan. Reimbursement or Monthly Snack Delivery. Company & Team retreats. Team Member Co-Working and Gathering Expense. MacBook Pro & WFH Stipend. Weekly $50 Uber Eats credit