- Led an intern to understand the work content, and teach devops, CICD, Javascript, Nestjs and other related back-end technologies. - Use Nest.js, TypeScript, and Socket.io to develop and maintain a real-time service. - Use PHP Laravel, MySQL to develop APIs. - Use Vue3, Vuex, TypeScript, Tailwind CSS to build a web-based music player APP. - Troubleshoot and find the root cause and debug independently. - Write a program to detect and clean our unnecessary Redis data to reduce the Redis 10% CPU usage. - Write programs to perform load testing to understand real-time service bottlenecks, and prevent mass requests make OOM to promote our service SLA.

- Refactored our main project docker image and size dropped by 75% compare to original image, let it have more security and faster deployment. - Use Nest.js framework to develop microservice APIs as required. - Use apache airflow to generate monthly financial reports. - Use GitLab CI/CD make unit testing, building image, and deploy to AWS EKS

- In the payment team, using Node.js and Express to develop APIs based on needs - In the payment team, using Github Action let our team have CI/CD and build DevOps culture - In the payment team, design the Azure cloud architecture of our Production environment and test environment services - In the sre team, Migrate the original Docker Swarm service to GCP GKE and self-hosted K8S and reduce our deployment time by 60% - In the sre team, maintenance and refactor the Jenkins pipeline make our CI/CD have high availability - In the sre team, installing self-hosted Kubernetes with Kubespray - Writing dockerfile make our service containerize - Using Golang, gin framework, mysql, redis to develop APIs - Using Nest.js framework, mysql, redis, mongodb to develop microservice APIs as required - Using the Vue.js framework to develop the Front-End according to the style provided by UI/UX designer - Using React-native framework to build native apps in three months

• Built abilities of independent thinking and problem solving • Established solid programming experience through 70 ~ 80 working hours per week • Completed assigned project - Stylish, with Node.js, Express, MySQL in 3 weeks • Co-worked with Front-End and App trainee to build a multiple devices solution and wrote API documents for assigned project in an additional week • Completed personal project - Live Stream, using Node.js, Express, React and Redux in 5 weeks