VN Technology Senior Fullstack Engineer

Role Overview We are looking for a Sr Fullstack Engineer to drive the development of the CADDi SaaS Platform. In this role, you will build and scale a high-performance web application that handles complex business logic and user interactions. You will work across the full stack, from designing DB, APIs with domain-driven design principles to optimizing frontend performance, using modern web technologies and architectural patterns.

What You Will Do (Key Responsibilities) • End-to-end design, develop & maintenance CADDi SaaS product, ensuring high availability and low latency. • Work with modern TypeScript stack (NestJS, Next.js…) in a complex web application. • Build and maintain GraphQL APIs following domain-driven design principles and schema-first approach. • Collaborate with cross-functional international teams to validate, implement & delivery features. • Participate in code reviews and maintain high code quality standards. • Hand-ons in product operation such as on-call, incident response & troubleshooting. • Write high-quality technical documentation (eg. ADR, Design Docs, Runbook) and actively participate in architectural decisions.