As a Senior Mobile Engineer, iOS, you'll help define the future of our mobile products and help deliver exceptional experiences to millions of users. In this role, you'll shape engineering practices and decisions to ensure new features scale reliably. With deep iOS expertise and a collaborative mindset, you'll champion performance, quality, and maintainability as you guide the evolution of our mobile platform. What You'll Do • Develop high-quality iOS applications that deliver engaging, reliable experiences to millions of users. • Architect scalable, modular, and maintainable iOS codebases, leveraging modern development practices. • Collaborate closely with Product, Design, and Engineering teams to define and deliver new features end-to-end. • Promote iOS best practices, including clean architecture, dependency injection, and efficient UI rendering. • Monitor app performance, reliability, and crash analytics to drive continuous improvement. • Stay ahead of iOS platform changes, ecosystem updates, and mobile trends to keep the team's skills and tools cutting-edge. • Foster a culture of collaboration, innovation, and technical excellence within the iOS engineering community. What You'll Do • Bachelor's degree in Computer Science or any relevant combination of education, experience, and training. • At least 3 years of experience building and shipping iOS applications using Swift and Swift UI development principles. • Strong knowledge of iOS architecture patterns such as MVVM. • Experience integrating RESTful APIs, handling data persistence, and managing complex states in mobile apps. • Strong knowledge of Design Patterns and OOP principles. • Familiarity with CI/CD pipelines for iOS, automated testing frameworks (XCUITest), and release processes is a plus. • Strong code quality practices, including code reviews, unit testing, and writing clean, maintainable code. • Excellent communication and collaboration skills with cross-functional teams. • A user-focused mindset, with an ability to translate product and design requirements into intuitive mobile experiences. Join Our Team We're a publicly traded (NASDAQ: DKNG) technology company headquartered in Boston. As a regulated gaming company, you may be required to obtain a gaming license issued by the appropriate state agency as a condition of employment. Don't worry, we'll guide you through the process if this is relevant to your role.