• Design, build, and maintain backend services using modern dotnet. • Implement and evolve APIs (REST and GraphQL) for internal tools, AI agents, and client-facing features. • Build event-driven, cloud-native services on AWS. • Integrate with third-party platforms and external APIs at scale. • Own features end-to-end: design, implementation, testing, deployment, and iteration. • Collaborate closely with product and engineering leadership to shape technical direction. • Participate actively in code reviews, design discussions, and operational improvements.