Role Description

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.

Responsibilities

• 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.

Requirements

• 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.

Preferred Qualifications

• 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.

Company Description

Dropbox isn’t just a workplace—it’s a living lab for more enlightened ways of working. We're a global community of bold visionaries and resourceful doers who are shaping the future of Dropbox—and with it the future of work. Our Virtual First model combines the autonomy of a distributed workplace with the power of human connection, making space for both meaningful work and meaningful relationships. With our start-up mindset and enterprise-level opportunities, you can be who you are and grow into who you’re meant to be. Here, you can own your impact to make work more intuitive, joyful, and human—for you as a Dropboxer and for hundreds of millions of people worldwide. If you're ready to push boundaries—and yourself— Dropbox is ready for you.

Team Description

The Dropbox Engineering Team builds the technology that creates more enlightened ways of working for hundreds of millions of people. Every day, our platforms—including Dropbox Dash, Dropbox Sign, and our core sync engine—handle over a billion files for users worldwide, creating engineering challenges as great as the opportunity for impact. Our software engineering team uses a range of technologies to solve interesting problems, including Python, React, Node.js, JavaScript, MongoDB, PostgreSQL, and Android development. We think like a startup but build for an enterprise, exploring new possibilities that transform how people work. If you're excited about turning complex technical challenges into intuitive solutions at scale, join our Engineering team. Areas of work include Machine Learning Engineers, Infrastructure Engineer, Product SWE Frontend and Backend, Mobile Software Engineers (iOS and Android), Engineering Manager, Data Engineer, Software Development Engineer in Test, Security Engineering, Site Reliability Engineer, Technical Program Managers, Network Engineer, Datacenter Engineer, Technical Supply Chain Manager and more.

Dropbox is an equal opportunity employer. We are a welcoming place for everyone, and we do our best to make sure all people feel supported and connected at work. A big part of that effort is our support for members and allies of internal groups like Asians at Dropbox, BlackDropboxers, enABLE, TODOS (Latinx), Pridebox (LGBTQ), Vets at Dropbox, and Women at Dropbox.