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Justin Chang

Senior Software Engineer
● 10 years’ experience in software development included DevOps, SDET, Backend and Android App. ● Experienced in serverless, Docker, Kubernetes, AWS/GCP, CI/CD pipelines, logging and monitoring service. ● Good at communicating with other teams and also feedback quickly. ● Has a stable personality, a positive work attitude and high sense of responsibility and hunger for learning new technology.
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ID TECH
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National Central University
Taoyuan, 桃園區桃園市台灣

Skills

Java
Play Framework
Linux
Docker
Git
Node.js
Shell Script
CI/CD
GitLab CI
ELK(ElasticSearch)
Kubernetes
Terraform
Prometheus
Grafana
GCP
AWS
Github Actions
Lambda
Jenkins

Languages

Chinese
Intermediate
English
Intermediate

Work experiences

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Sr. DevOps Engineer

ID TECH
Full-time

Feb 2022 ~ Present
Taoyuan, Taoyuan District, Taoyuan City, Taiwan
Sr. DevOps Enginner # Key Skill - Jenkins, Shell Script, AWS, Kubernetes, Terraform, Prometheus # Achievements - To implement pipelines on Jenkins, including the general flow for software release, pipeline enhancement for more reusable and flexible, and support all teams' requirements for automation - To troubleshoot pipeline issues to make CI/CD work smoothly - To migrate legacy pipelines to work with gerrit - To plan the monitoring service for both cloud resources and on-premise service
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Site Reliability Engineer

CoolBitX
Full-time

Dec 2020 ~ Feb 2022
1 yr 3 mos
Taipei City, Taiwan
Site Reliable Engineer # Key Skill - GCP, Kubernetes, Grafana, Terraform, Prometheus, Loki, Github-CI # Achievements - To engage in backend development and infrastructure provisioning with IaC - To build a self-host cryptocurrency nodes in K8s - To build a logging service for log-based statistics dashboard - To maintain live services by monitoring availability latency and error logging - To troubleshoot live service issues and guarantee SLO (99%) - To ensure service quality through automation of the CI/CD pipeline
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Sr. Software Engineer

Uniform Corporation
Full-time

Sep 2016 ~ Jul 2020
3 yrs 11 mos
Taipei City, Taiwan
DevOps Engineer # Key Skills - Node.js, Shell Script, AWS, Serverless, ELK, Gitlab CI # Achievements - To build CI/CD pipelines on Gitlab-CI from scratch - To build a self-host log service on ELK to lower cost by 30% - To build log-based dashboard to visualize the product quality - To monitor backend services and send alerts with CloudWatch from scratch Backend Engineer # Key Skills - Java, Play Framework, Node.js, Express.js, MySQL, Docker # Achievements - To introduce Docker containers to all legacy services to simplify service management and lower cost by 20% - To integrate with Alexa as the selling point for next-gen production - To survey new features and perform POC demo (e.g. IFTTT) - To identify issues quickly between APPs, cloud services and infra
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Sr. Software Engineer

HTC
Full-time

Oct 2009 ~ Jun 2016
6 yrs 9 mos
Taipei City, Taiwan
Sr. Software Engineer # Key Skills - Java, C#, MySQL # Achievements - To build a log parsing system to address software stability issues in 30 minutes - To build an issue triage system to reduce meeting time by 70% - To implement the log parsing tool to deliver power test reports automatically and save manpower by 50% Software Engineer (Android Tools App) # Key Skills - Java, C, Android # Achievements - To implement modem logging tools on smart phones for troubleshooting - To implement calibration tools for improving factory processes - Cross team technical issues coordinator to make sure product issues can be solved

Educations

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National Central University

Master’s Degree
Computer Science

2006 - 2008
Logo of National Central University.

National Central University

Bachelor’s Degree
Computer Science

2002 - 2006
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