At Nailzy, I designed an auto-scaling microservices architecture on AWS ECS and implemented event processing with SQS, SNS, and EventBridge. The platform stays stable during traffic spikes, and queue-based workload distribution supports concurrent order processing.
I lead a backend team of seven engineers, setting technical direction and engineering standards while collaborating with US-based product and frontend teams. I also introduced multi-agent Claude Code workflows to accelerate feature delivery and improve consistency across microservices.
At CareHealth, I built backend services for a healthcare platform using Kubernetes-based microservices and horizontal scaling. I designed healthcare data schemas and APIs for mobile and web clients, and worked on asynchronous notification pipelines for appointment reminders and health alerts.
At Nexlab, I worked across products including DAIKIN Vietnam’s service-booking platform, where I architected Docker Swarm infrastructure with PostgreSQL replication and built a GraphQL API. My earlier work includes web and backend development for international client projects, e-commerce, learning platforms, and on-demand services.
