Senior Backend Developer (Saas Platform)

ResponsibilitiesDesign and develop the backend services for the core areas of the platform (catalog, orders, payments, ERP Cloud integration).Define API boundaries and ensure consistent, scalable communication between services.Own reliable data synchronization between the ERP Cloud and the platform, including error handling and recovery mechanisms.Optimize systems for performance and scalability (caching, asynchronous processing, read/write optimization).Establish observability standards (logging, monitoring, alerting) across all backend services.Conduct code reviews, promote best practices, and support less experienced team membersRequirementsSeveral years of experience (typically 5+ years) in backend development, including proven experience in a senior role.Strong knowledge of Node.js with TypeScript, or a comparable modern backend stack.Experience in API design (REST, ideally also GraphQL) and database design/optimization (PostgreSQL or similar) and designing microservices.Experience with event-driven architectures (e.g. Kafka, Azure Service Bus) and caching strategies (Redis).Solid knowledge of authentication/authorization (OAuth2, JWT, session management).Experience with containerization (Docker) and cloud platforms, ideally Microsoft Azure (Azure knowledge is required) and K8S.Experience integrating external systems, ideally ERP systems or payment gateways.BenefitsWorking location: Gia Dinh Ward (Binh Thanh District), Ho Chi Minh CitySalary range: Up to VND 80,000,000 gross