Music for everyone, no credit card needed. It's a promise our platform was built on. And here in the Free team, we're still building on it. We work on a massive scale, bringing people from all kinds of disciplines and all parts of the business together to deliver an amazing freemium experience to more than 129 million users worldwide. Want to help shape the future of free? Here's how.We are looking for a Staff Backend Engineer to join our Free Product engineering organization. We're creating the robust testing infrastructure needed to ensure our platform is stable and reliable, and you'll help us build it from the ground up. You'll be instrumental in building the roadmap and strategy, and ensuring that our testing infrastructure has the technical direction it needs to help scale Spotify's Free Product.We are looking for engineers that share our common interest in distributed backend systems, their scalability, and continued development. You will closely collaborate with our internal customers to determine the best API and backend system design to scalably meet their needs. You will build the backend systems that power our application, scale highly distributed systems, and continuously improve our engineering practices. Above all, your work will impact the way the world experiences music.What You'll Do* Be a technical leader within the team you work with and within Spotify in general.* Coordinate technical projects across teams within Spotify.* Monitor user-facing and backend systems using best practices, with reliability and scalability in mind* Implement high-quality release engineering practices to facilitate rapid development, safe changes, and engineer productivity* Facilitate collaboration with other engineers to solve interesting and challenging problems.* Collaborate with key internal stakeholders to determine how to scalably design backend systems and APIs to meet their needs.* Architect, develop, and operate Java services deployed to millions of users.* Work with data engineers to build and maintain batch and real-time data pipelines with data processing frameworks like Scio, Storm, Spark and the Google Cloud Platform.* Be a technical leader and valued contributor in an autonomous, cross-functional agile team.* Collaborate with other engineers, product owners, and designers to identify and solve challenging problems, creating awesome music sessions for users worldwide.* Be a leader of the Spotify-wide backend developer community affecting and driving our architecture across the company.* Work on what you want during regular hack days and annual hack weeks.Who You Are* You have experience architecting a large scale testing infrastructure, and have been hands on in building it out You have experience working directly with stakeholders to understand, document and develop APIs and systems to meet their requirements, driving increased adoption and reducing reliance on custom one-off implementations.* You have experience writing distributed, high-volume services and know how to deploy and keep them running in production.* You have interest in big data processing technologies.* You love working in an environment where you constantly experiment and iterate quickly.* You believe data is the most powerful tool for informed decision-making.* You have a deep understanding of system design, data structures, and algorithms.* You care about quality and you know what it means to ship high quality code.* You are willing to work from our awesome office in New York. We offer relocation packages if you do not currently live in New York.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 brilliant. 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.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 opportunity to enjoy and be inspired by 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 with a community of more than 286 million users.