Senior Fullstack Engineer - Messaging Platform

Description: Build and evolve Quicksilver UI, Spotify's multi-channel messaging platform for in-app messages, emails, and push notifications. Own frontend features from design to implementation using React and TypeScript. Work across the stack, including debugging Java and Apollo services, and improving API contracts. Support multi-market and localization workflows for reliable message rendering. Collaborate with product and design teams to enhance features based on operator needs. Improve developer experience through testing infrastructure and documentation. Contribute to architectural decisions as the platform evolves. Requirements: Experience with TypeScript and modern UI frameworks like React. Understanding of state management, GraphQL, Apollo, and reusable component design. Experience building tools for internal users with a focus on operator experience. Comfortable with frontend and backend systems, including Java services and API contracts. Familiarity with Scala/Python and cloud infrastructure tools like GCP and BigQuery. Ability to make informed decisions about technical debt and communicate tradeoffs. Experience working with shared codebases and collaboration across teams. Additional experience with data pipelines or server-side rendering is a plus. Benefits: Competitive salary range of 164,448–234,926 USD plus equity. Health insurance, six-month paid parental leave, and 401(k) retirement plan. Monthly meal allowance and 23 paid days off, plus paid flexible holidays and sick leave. Flexible work location within the North Americas region.