• Design, build, and evolve modern, cloud-native fullstack systems across frontend, backend, and infrastructure layers. • Architect and implement scalable RESTful APIs and event-driven backend services that integrate with internal systems and third-party platforms. • Build and maintain mature React and TypeScript frontend applications with a strong focus on usability, performance, accessibility, and maintainability. • Own features end-to-end, including discovery, requirements clarification, technical design, implementation, testing, deployment, and post-release iteration. • Make sound architectural decisions and clearly communicate technical tradeoffs to stakeholders. • Design and optimize relational and/or NoSQL data models to support scalability, reliability, and performance. • Contribute to and improve CI/CD pipelines and release processes to enable frequent, reliable deployments. • Diagnose, resolve, and prevent production issues through strong observability, monitoring, and root cause analysis practices. • Champion engineering best practices, including testing strategy, code quality, documentation, and maintainable design patterns. • Mentor other engineers through code reviews, knowledge sharing, and technical guidance.