Senior iOS Engineer

We’re defining what it means to build and deliver the most extraordinary sports and entertainment experiences. Our global team is trailblazing new markets, developing cutting-edge products, and shaping the future of responsible gaming.

Here, “impossible” isn’t part of our vocabulary. You’ll face some of the toughest but most rewarding challenges of your career. They’re worth it. Channeling your inner grit will accelerate your growth, help us win as a team, and create unforgettable moments for our customers.

The Crown Is Yours

As a large and forward-thinking organization, we're continuously taking on new and exciting projects — and we’re looking for a Senior iOS Engineer to help drive those forward. In this role, you’ll be dedicated to delivering best-in-class mobile experiences. With strong iOS expertise and a collaborative mindset, you’ll work across teams, influence product direction, and contribute to the continued evolution of our mobile platform within a dynamic enterprise environment.

What you’ll do as a Senior iOS Engineer

• Development of 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 managers, designers, and backend engineers 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 bring

• 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.

• 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.

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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.