Spotify's messaging platform reaches over 1.4 billion users and delivers tens of billions of messages across email, push, and in-app channels. Beacon is the team behind Quicksilver, the internal platform operators use to create, localize, target, and launch those messages. We're looking for a Senior Engineer to help us build intuitive, reliable tools that power how Spotify communicates with listeners at scale.
What You'll Do- Build and evolve Quicksilver UI, Spotify's multi-channel messaging platform, where operators author, preview, and deliver in-app messages, emails, and push notifications across markets and locales.
- Own frontend features end-to-end, from component design and implementation in React and TypeScript through server-side creative rendering.
- Work across the stack when needed, including debugging Java and Apollo services, evolving gRPC, Protobuf, and REST API contracts, tracing data through BigQuery, and improving pipeline output.
- Support multi-market and localization workflows, helping creatives render reliably across locales and enabling smooth new-market launches.
- Partner with product and design to shape features and improvements based on operator needs.
- Improve the developer experience through stronger testing infrastructure, build performance, component documentation, and integration tooling.
- Contribute to architectural decisions and technical direction as the platform evolves.
Who You Are- You have experience building complex web applications with TypeScript and modern UI frameworks, including React or similar technologies.
- You understand state management, GraphQL and Apollo, component-scoped styling, and reusable component-library design.
- You have built tools or platforms for internal users and care about creating intuitive, reliable operator experiences.
- You are comfortable working across frontend and backend systems, including reading or modifying Java services and working with API contracts such as gRPC, Protobuf, or REST.
- You can work with Scala/Python when pipelines or APIs need attention and navigate cloud infrastructure and data tools such as GCP, GKE, BigQuery, or GCS.
- You make thoughtful decisions about technical debt and can clearly communicate the tradeoffs between maintaining, improving, and migrating systems.
- You have experience working across shared codebases and understand the collaboration needed when teams depend on common components and services.
- You may also bring experience with data pipelines, LLM applications such as RAG or vector search, or server-side rendering.
Where You'll Be- We offer you the flexibility to work where you work best! For this role, you can be within the North Americas region as long as we have a work location.
- This team operates within the Eastern Standard time zone for collaboration.
The United States base range for this position is 164,448-234,926 USD, plus equity. The benefits available for this position include health insurance, six-month paid parental leave, 401(k) retirement plan, monthly meal allowance, 23 paid days off, paid flexible holidays, and paid sick leave. These ranges may be modified in the future.
