# Highlight- designing and implementing Database system in production to ensure the service runs on track- solid experience with large scale software system on hybrid(AWS-GCP, AWS-IDC) infrastructure- hands-on experience on building and operating Relational DBMS such as MySQL, Maria, PostgreSQL- hands-on experience on scaling and handling 'hotspot' in distributed DBMS called NoSQL such as Cassandra, Couchbase- using DBaaS, Cloud Native Database, to migrate data instead of legacy to cut the cost- work closely with the team in whole development life cycle to realize the idea that pursues- continuous researching and training myself to produce the quality code with productivity- Project portfolios: Mobile Payment Service, Voice Assistance Service, Mobile Messaging, Analyzing Social Media Contents using Hadoop# Skills- Diagnosing and Solving in production scale distributed system: Based on the knowledge and experience of computer network, TCP and popular Application-level protocol, (such as HTTP, GRPC) it's able to analyze what point is a bottleneck and to find out how to avoid- Designing relational data model includes secondary index and partitioning to optimize proper performance to fit in DBMS specific, especially MySQL and Maria- Database Query Language Optimization: It's able to tune SQL based on the understanding of behaviors of the optimizer such as sorting, merging, and to handle complex conditions, specialized in MySQL.- Planning and Implementing of Refactoring architecture which is to migrate data to heterogeneous system to improve scale, for instance, from relational data structure to document data structure- Programming: It's able to interpret and write source codes which have written by certain program languages mainly Java and Python.