1. Lead the development and maintenance of a game platform, providing coaching and conducting code reviews for other members of the backend team. 2. Formulated and executed a comprehensive solution and refactoring plan for a legacy system, resulting in significant improvements in efficiency.

1. Engaged in startup company activities until August 2023. 2. Participated in technical interviews. 3. New project (sports) architecture design. 4. Tech Stack: Language: Java Framework: Springboot 3, Webflux RDBMS: MariaDB NoSQL: Redis Others: RabbitMQ, Kafka

1. Spearheaded the end-to-end design and implementation of an instant messaging (IM) application architecture. 2. Successfully showcased a fully functional prototype that precisely fulfilled the specified business requirements. 3. Designed the cache mechanism and storing model for different use cases: chat room, texting app. 4. Employed protocol buffers for communication between clients and the backend via websockets. 5. Transformed internal server communication by replacing RESTful APIs with efficient gRPC protocols. 6. [IM tech stack] : Language: Golang Framework: gin, gorillia RDBMS: MariaDB NoSQL: Redis, ElasticSearch Others: RabbitMQ, gRPC, protobuf

1. Oversaw a development team consisting of over 30 backend developers, ensuring smooth coordination and effective collaboration. 2. Held accountable for the maintenance and operation of an online sports gaming platform, proactively addressing technical challenges that arose in production, identifying root causes, and delivering comprehensive solutions. 3. Refactored the data pipeline to provide a unified dataset. 4. Designed and implemented an ETL solution to store and analyze sports event messages. 5. [Tech stack] : Language: Java Framework: Springboot, Netty, WebMVC, Webflux RDBMS: MariaDB NoSQL: Redis, Mongo Others: Kafka, K8S, Docker

1. Strategized the roadmap and provided leadership to a development team in successfully delivering an online gaming lottery product. 2. Conducted comprehensive requirements analysis and determined the features and updates to be delivered in each development cycle. 3. Developed essential core functionalities and implemented common utilities. 4. [Accomplishment] : Completed a lottery gaming product and push it to production stage after a year development.

1. Lead Java backend team to develop a gaming platform and lottery project. 2. Designed backend distributed system architectures and database schema. 3. Designed and implemented CI/CD with Jenkins pipeline and deployed with Docker/Docker compose.

1. Designed and implemented a brand new payment module that integrated multiple third party payment services. 2. Developed RESTful APIs according to the requirements.

Developed an Android application that can remote control multiple lamps using socket communication with the server.

1. Participated in development of Java backend and Android application. 2. Developed an Android application that uses iBeacon technology to do indoor navigation.

N14/N10 advanced EPI process development.