Open to opportunities

振南邸

@0003906

Message

Backend engineer building Java Spring microservices and LLM-powered RAG/agent systems for enterprise platforms.

China

Message

What I'm looking for

I’m looking for a role where I can build reliable enterprise backend services and keep applying what I’m learning in LLM applications, AI agents, and RAG systems.

I build backend services with Java and the Spring ecosystem, including REST APIs, query and aggregation services, and permission control modules at Shanghai Hypers Data Technology Inc.

I’ve optimized backend performance through SQL tuning, and I’ve supported production stability with incident analysis and issue resolution.

More recently, I’ve been moving into AI application engineering—building LLM-powered applications, AI agents, and RAG-style systems, including a lightweight AI coding agent for local repositories.

I also worked on an enterprise data asset management platform for Yum China, where I designed a metadata-driven API gateway and metric services spanning MySQL and Elasticsearch with Kafka pipelines.

Experience

Work history, roles, and key accomplishments

Java Backend Engineer

Shanghai Hypers Data Technology Inc.

Sep 2018 - May 2024 (5 years 8 months)

Designed and developed core backend services for enterprise business systems, including REST APIs, complex query processing, aggregation services, and permission control modules. Optimized backend performance through SQL tuning and query optimization.