The Opportunity Join the team transforming how millions of people access musculoskeletal care by building the engine that powers our growth. As a Staff Software Engineer on the Growth Engineering team, you will not just build features; you will architect the scalable, event-driven backend systems that integrate Hinge Health with major hospital systems and health plans. You will be a technical leader in a cloud-native environment, solving complex integration challenges to expand our ecosystem and deliver life-changing treatments to members worldwide. What You'll Accomplish - In your first 3 months: You will dive into our backend stack (Python, TypeScript, AWS) and audit our current integration architecture. You will build high-trust relationships with product managers and frontend partners, and ship your first set of secure, scalable features to support new growth initiatives. - In your first 6 months: You will take ownership of leading architectural discussions for complex, integration-heavy systems. You will design and implement end-to-end solutions using Apache Kafka and DynamoDB, mentor junior engineers to raise the technical bar, and champion improvements in system observabilit