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Cisco Certified Network Associate

Cisco

Red Hat Certified Engineer

Red Hat

● Backend Engineer with 4+ experience in back-end development.
● Experience in several languages such as Python, Golang, Rust.
● Experience Network and Web development.
● Love learning new things .
● Good logic and communication skills.

元智大學 Yuan Ze University

健行科技大學

Backend Engineer

沈記維

Lilee Systems

後端 工程師

● Back-End Development:
- Managed robust back-end services, ensuring feature support.
- Authored development docs and implemented unit tests for code quality.
- Led design of new features aligned with project objectives.
- Set clear feature acceptance criteria and designed thorough test cases.

● Locomotive Asset Management (Taiwan Railway, TC4.0):
- Developed APIs for train data, onboard systems, and real-time dispatch.
- Engineered jobs for daily train schedules and real-time status.
- Used technologies: Python, Redis (Pub/Sub), Postgres, TimescaleDB.

● SafeRide Product:
- Developed APIs for real-time/historical data.
- Led refactoring of SafeRide video functionality, managing VoD operations:
  · Designed a progress bar for chunked transfer.
  · Managed digital watchdog operations and VoD tools.
  · Enhanced error handling and utilized FFmpeg for missing video segments.
- Optimized Report Service: Achieved a 91.5% reduction in data processing time for monthly reports, efficiently handling 500K records.
- Researched NVR systems and RTSP protocol for IP camera compatibility.
- Used technologies: Python, Golang, Redis, Postgres, TimescaleDB, Kafka.

● 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.

● Team Collaboration:
- Introduced Computer Networks concepts to the team.
- Conducted code reviews and designed End-to-End (E2E) tests.
- Authored concise code documentation for maintainability.

● Work with Scrum.

台灣新北市

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.

台灣新竹市新竹

合勤科技

● 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 an automated test to simulate the behavior of users browsing the web and using the APP
- Web: Python with Selenium 
- Mobile: Python with Appium

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