Senior Frontend Engineer
Rush Street Interactive (RSI) is seeking a Senior Frontend Engineer to join our team. As a market leader in online casino and sports betting, RSI operates brands such as and We are a mobile-first organization evolving our digital platform toward a modern, scalable, event-driven architecture. In this role, you will play a foundational role in building and evolving our client applications and the event orchestration architecture that powers them.
As a Senior Frontend Engineer, you will be responsible for frontend development across web and native mobile platforms, including React, Angular, TypeScript, iOS, and Android. You will contribute to and evolve a modular, scalable micro-frontend architecture, build reusable frontend components and shared client frameworks, and optimize performance and responsiveness across devices, with a particular focus on mobile reliability and efficiency. Additionally, you will establish best practices for SDK integrations, consent enforcement, observability, and client performance.
The ideal candidate will have 8+ years of experience in software engineering with strong frontend expertise, deep experience building and scaling web and native mobile applications, and strong proficiency in React, Angular, TypeScript, and native iOS/Android development. Proven experience implementing analytics or CDP SDKs within mobile applications, a strong understanding of event-driven architecture and structured event schema design, and experience integrating client event streams into CDPs and downstream analytics platforms are also required. Familiarity with relational databases (Postgres, Oracle) and analytical platforms (e.g., Snowflake), experience with CI/CD pipelines, Git-based workflows, and modern development tooling, and a strong understanding of data integrity, governance, observability, and privacy best practices are essential. Demonstrated ability to lead technical discussions and influence architectural decisions, along with excellent written and verbal communication skills, are also necessary.
RSI offers comprehensive compensation, work-life balance initiatives, autonomy, creativity, and growth opportunities. We are a people-oriented environment with a supportive atmosphere, top-notch professionals who are passionate about what they do, and a commitment to treating everyone with respect and supporting your professional and personal growth. As a rapidly growing company in an emerging industry, you'll have a huge impact on our product and our company.