Senior iOS Software Engineer, Design Systems

As a Senior iOS Engineer on the Design System Team, you will play a central role in enabling consistent, scalable, and delightful product experiences across our native applications. You will help define and evolve our design system foundations, ensuring engineers and designers can build with speed, quality, and cohesion. In this role, you’ll gain exposure to senior leadership, influence design and engineering practices across teams, and contribute to the evolution of a system that empowers millions of users.

Your impact will span:

• System foundations: Building reusable iOS components and frameworks that serve as the backbone of our product experience.
• Collaboration & advocacy: Partnering with designers, Android peers, and product engineers to ensure multi-platform design system cohesion and adoption.
• Scalability & innovation: Driving long-term architecture, accessibility, and performance standards that support product growth at scale.
• Developer experience: Improving documentation, workflows, and tooling to make using the design system frictionless for engineers.

Our Engineering Career Framework is viewable by anyone outside the company and describes what’s expected for our engineers at each of our career levels. Check out our blog post on this topic and more here.

• Build, maintain, and evolve Dropbox’s DIG design system iOS component library using Swift, SwiftUI, and UIKit.
• Translate Figma designs and tokens into accurate, maintainable UI components.
• Collaborate with cross-platform peers (Android, Web) to ensure consistency and parity.
• Define and maintain versioning, governance, and release processes for design system components.
• Improve internal documentation, onboarding, and tooling to accelerate adoption.
• Provide support and advocacy across product teams via code reviews, pairing, and developer experience improvements.
• Ensure design system components meet accessibility, performance, and testability standards.

Many teams at Dropbox run Services with on-call rotations, which entails being available for calls during both core and non-core business hours. If a team has an on-call rotation, all engineers on the team are expected to participate in the rotation as part of their employment. Applicants are encouraged to ask for more details of the rotations to which the applicant is applying.

• Bachelor’s degree in Computer Science or related technical field involving coding (e.g., Physics or Mathematics), or equivalent technical experience
• 8+ years of professional iOS development experience with proven contributions to shared UI libraries or design systems.
• Strong proficiency in Swift, SwiftUI, and UIKit; familiarity with modern paradigms (Combine, Swift Concurrency, MVVM).
• Solid understanding of Apple HIG and accessibility (WCAG) standards.
• Experience with design-to-code workflows (e.g., Figma tokens, variables, tooling integrations).
• Strong collaboration and communication skills, with ability to align engineers and designers.
• Track record of writing clean, maintainable, and testable code.
• Experience with CI/CD, developer tooling, or automation for design system workflows.

• Experience scaling design systems in multi-platform environments (iOS, Android, Web).
• Working knowledge of Objective-C or additional mobile platforms.
• Experience with the Android ecosystem also a plus.
• Familiarity with performance optimization, UI testing, or analytics instrumentation.
• Experience contributing to open-source design systems or developer tooling.
• Prior experience mentoring engineers or leading cross-functional initiatives.