Senior Backend Developer (SaaS Platform)

Responsibilities

• Design 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 members

Requirements

• Several 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.

Benefits

• Working location: Gia Dinh Ward (Binh Thanh District), Ho Chi Minh City
• Salary range: Up to VND 80,000,000 gross