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Passionate about learning new technologies to sharp my skills. I enjoy the sense of achievement after researching and programming whole day long. Expecting myself to be a full-stack Software Engineer that solve real problems that not limited to neither front-end nor backend field.


淡江大學

Backend Engineer

Chien-Hsun Wu

KKBOX

- 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.

台灣台北市

- 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

國泰金控 數數發

工程師

- 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

Newtype Games Limited

• 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


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