Lilee systems, Software Engineer, Feb 2021 ~ 現在

● Back-End Service Development: 

• Maintained, designed, and developed robust back-end services to support various functionalities. 
• Authored comprehensive development documents, and implemented unit tests to ensure code quality. 
• Collaboratively proposed requirements and led the design of new features, aligning with project goals. 
• Defined clear acceptance criteria for feature evaluation, and meticulously designed test cases for thorough validation. 

● Development of SafeART (Terminal 3) Product: 

• Design the service architecture of the central control center and database
  
• Utilized technologies such as Python(GraphQL), Postgres, TimescaleDB.
  

● Development of SafeRide Product: 

• Designed and implemented APIs for real-time and historical data. 
• Spearheaded the refactoring of SafeRide video functionality, overseeing VoD (Video on Demand) and event VoD operations: 
• Including the design of a progress bar for chunked transfer encoding. 
• Handled digital watchdog-related operations and created tools for VoD flow tracing.
• Improved error handling for full VoD functionality and utilized ffmpeg to fill in missing video segments.
• Conducted independent research on NVR systems, focusing on compatibility with IP cameras supporting the RTSP protocol:
  
• Clarified functional and non-functional requirements, ensuring seamless integration between the NVR and RTSP-supported IP cameras. 
• Dived deep into the RTSP protocol to enhance video recording and playback functionalities.
• Optimized Reporting Service: Achieved a 91.5% reduction in data processing time for monthly reports, efficiently handling 500K records.
  
• Utilized technologies such as Python, Golang, Redis, Postgres, TimescaleDB, and Kafka.
  

Zyxel, Software Engineer, Aug 2018 ~ Feb 2021

Responsible for the construction of the Data Service and the development and maintenance of the cloud system, "Nebula". 

● Nebula: 

- A network management system that integrates diverse devices including Wi-Fi access points, Ethernet switches, and security gateways. It consolidates these into a single cloud platform, offering a comprehensive solution for managing user network infrastructure. 

- Developed using Python 3.6 and the Flask application framework. - Designed and developed MongoDB schema and RESTful APIs. 

- Managed Nebula AP and Gateway Flex-related functionalities and configuration push settings. 

● Data Service: 

- A data processing system designed to manage the data from Nebula devices. Due to the vast data volume associated with Nebula, Cassandra was employed as the back-end database system. 

- Technologies utilized include Rust and Cassandra.

Trend micro, Intern, Jun 2017 ~ Aug 2018

● Autotest 

- Responsible for assisting P-QA in AP system testing

- Main test items: When the user connects to the Internet via Wi-Fi access points, confirm whether the system can correctly identify the currently opened application.

- Develop automated test to simulate the behavior of users browsing the web and using the APP

- Web side: Python with Selenium 

- Mobile side: Python with Appium

Yuan Ze University, Institute of computer science and engineering, 2015 ~ 2018

During studies, I worked as a teaching assistant for courses such as computer network, and participated in the TaNet-Taiwan Internet Symposium and published papers.

Chien Hsin University of Science and Technology, Department of Computer Science and Information Engineering, 2009~ 2013

The main focus is on the Internet learning course, and obtain relevant certificates.