Senior Engineer- Mobile iOS Platform

The Platform team creates the technology that enables Spotify to learn quickly and scale easily, enabling rapid growth in our users and our business around the globe. Spanning many disciplines, we work to make the business work; creating the infrastructure, tooling, frameworks, and capabilities needed to welcome a billion customers. At Spotify, we’re on a mission to unlock the potential of human creativity by connecting millions of listeners with the creators they love. Within the Client Platform Studio, the Synchrotron squad builds the architectural foundation that powers our mobile experiences. As our mobile codebase continues to grow, we’re focused on keeping development efficient, scalable, and enjoyable for engineers across Spotify. This team enables developers to move fast by reducing complexity, improving system boundaries, and creating clear, reliable building blocks for application development. What You'll Do Work on evolving the architecture of Spotify’s mobile platform across iOS and shared systems Design and implement strategies that allow systems to be developed and tested in isolation, reducing build complexity and interdependencies Enable interoperability between iOS (Swift/Objective-C) and shared C++ codebases to improve maintainability and scalability Build and maintain platform-level components that help teams reason clearly about application state and logic flow Collaborate with teams across the Client Platform Studio to improve developer experience and system design Use AI tools to explore solution spaces, validate architectural ideas, and prototype quickly to inform decisions Define and track success metrics tied to developer productivity and system performance Contribute to technical strategy, engineering standards, and long-term platform direction Who You Are You have strong experience in iOS development and exposure to C++, with interest in deepening your expertise across both You have a solid understanding of software architecture, modularization, and scalable system design You are familiar with service-oriented systems and lifecycle management You care about improving developer experience and reducing cognitive load for other engineers You communicate clearly and collaborate effectively with cross-functional teams You are comfortable using AI tools to support exploration, research, and rapid prototyping You take a product-oriented approach to platform work, connecting technical decisions to measurable outcomes Where You Will Be This role is based in London or Stockholm We offer you the flexibility to work where you work best! There will be some in person meetings, but still allows for flexibility to work from home. Spotify is an equal opportunity employer. You are welcome at Spotify for who you are, no matter where you come from, what you look like, or what’s playing in your headphones. Our platform is for everyone, and so is our workplace. The more voices we have represented and amplified in our business, the more we will all thrive, contribute, and be forward-thinking! So bring us your personal experience, your perspectives, and your background. It’s in our differences that we will find the power to keep revolutionizing the way the world listens. At Spotify, we are passionate about inclusivity and making sure our entire recruitment process is accessible to everyone. We have ways to request reasonable accommodations during the interview process and help assist in what you need. If you need accommodations at any stage of the application or interview process, please let us know - we’re here to support you in any way we can. Spotify transformed music listening forever when we launched in 2008. Our mission is to unlock the potential of human creativity by giving a million creative artists the opportunity to live off their art and billions of fans the chance to enjoy and be passionate about these creators. Everything we do is driven by our love for music and podcasting. Today, we are the world’s most popular audio streaming subscription service.