Delivery Management Team (2019.08 - Now)- Promoted Scrum within the organization and held more than 15 one-day Scrum training courses.- Held more than 30 agile activities in the company to improve teams' agile thinking.- Acted as a facilitator for other teams' retrospective meetings, helped the team find problems and improvement items.- Gave several speeches in the community to share Agile Development experiences.LINE SPOT team (2020.05 - Now)- Took Scrum Master role to help the team understand agile development correctly and create a high-performance team.- Successfully integrated the three department of Business, Product, and Engineer to shorten the lead time of requirements.- The working mode is changed from Push to Pull, and the team works in a self-organizing and self-managing manner.LINE TAXI team (2021.05 - 2021.12)- As an external Agile Coach role, I assisted the team in Scrum adoption and process improvement.- After half a year, product delivery speed increased by 80%.- Assisted the entire company to apply OKRs for cross-team communication improvement and company goal alignment.LINE TODAY team (2018.09 - 2020.05)- In a 50-person product team, led a large-scale Scrum transformation and optimized the product development process.- Through evolutionary change, development process was converted from waterfall to agile.- Release cycle reduced from six weeks to two weeks. We deliver service to users and get feedbacks earlier.- Influence different roles within the team, including Product Manager, Technical Lead, Developer and Tester, to understand the benefits of agile development.Speech- The Journey to LINE TODAY Large-Scale Agile, Regional Scrum Gathering Taipei, 2021.11.04- A Story of Self-Designing Team, ITHome Agile Summit, 2021.09.08

LINE TODAY team- Using multi-layer cache mechanism, I developed new features and they are able to undergo large-scale traffic.- Acted as a technical lead in a team, clarified product requirements, planned system design, and organized work tasks.

DevOps: A culture of software development that seeks stability and performance at the same time that it speeds software deliveries to the business- Practice DevOps methodology in the team.- Design and build the infrastructure from scratch on AWS via Ansible.- Rich experiences with Continuous Integration (CI) and Continuous Deployment (CD).- Proficient in AWS services.- Have a good knowledge of network security.- Tools: Ansible, Puppet, Jenkins, AWS Services.Microservices: Develop a single applications as a suite of small services which communicates with lightweight mechanism.- Adopt microservices architecture to the project.- Build, ship, run the Docker way.- Use self-hosted Kubernetes as orchestration tool to manage each microservice.- Support synchronous (HTTP REST) and asynchronous message (Kafka) communication.- Tools: Docker, Kubernetes, Etcd, Zookeeper, Kafka.Monitoring System: Provide a dynamic, real-time picture of the state of your infrastructure. Be metric, event and log.- Build the whole monitoring system automatically.- Collect metrics from operating system, application, and business logic.- Notice incident events and send useful notifications.- Collect log files from host machine and container instance.- Tools: Telegraf, InfluxDB, Grafana, Icinga, Slack, Fluentd, Elasticsearch, Kibana, Prometheus.Speech- The Art of Container Monitoring, ITHome Container Summit 2016, 2016.09.22- DevOps in Practice, Industrial Technology Research Institute (ITRI), 2017.08.07

Indexing Service: Automatically scan multimedia files, such as photos, music, and videos and compile them into a multimedia library.- Adopt multiple-process method to redesign the core of indexing service .- Each process only does one thing and use linux message queue communication.- Extract metadata from multimedia files and convert them to portable format.- Automatically detect files placed in file system and trigger indexing service.- Tools: ImageMagick, Taglib, FFMPEGVideo Station: Dedicate to playing and managing your personal video collection.- Implement a plugin mechanism to get movie data from multiple movie sources.- Develop rule-based method to identify movie title automatically from video's filename or directory structure.Movie Database: An online database providing movie information from IMDB and AtMovie.- Implement full-text search for movie title.- Set up an incremental update from raw data to bring movie database up to date.Quick Connect: Access your remote NAS using a domain name with our configuring port forward rules.- Setup Dynamic DNS service to manage user's domain name.- Implement a simple configuration management tool similar Ansible to deploy AWS EC2 instances.- Operate and monitor this service in multiple AWS regions. The peek number of relay tunnels are about 400,000.

WinDVD: An Windows desktop application for playing DVD/BD videos.- Implement user interface and event flow.- Maintain DirectShow filter graph and audio components.- Join SEG team to analyse and solve serious problems quickly.