Backend Developer – Clothes Searching, Feb 2021 ~ Now (Developing)

• Use Selenium to fetch clothes information in major websites like NET, Uniqlo, Shopee, etc. and preprocess data.
• Expect to use CKIP(Traditional Chinese tokenization tool developed by Academia Sinica) to do text mining and use tf-idf based model to build a search engine。

Backend Developer – Passerby Electronic Health Passport, Oct 24-25 2020

• Use Express.js to build API Server along with Firebase as database.
• Use Google Compute Engine to deploy.

Backend Developer – Kyronus, Oct 2019 ~ Sep 2020

• Use Express.js to build API Server along with DynamoDB as database. Implement dozens of APIs and functions regarding gaming mechanisms such as GPS resource collecting, building construction, check in, shopping mall, player level.
• Build MVC structure modularize code to highly reduce repeatability and dependency, increase maintainability and expandability.
• Implement Serverless architecture along with AWS Lambda, API Gateway, GitlabCI, Cloudwatch to build lightweight service and thus limit monthly cost to 5-10 dollars in development stage.
• Implement CI/CD to quickly, easily and automatically deploy. Enable frontend developers to test APIs quickly.
  
• Document API specifications to improve collaboration between frontend and backend with Swagger.
  
• Use AWS S3, Route 53, CloudFront to realize custom domain and HTTPS.
  
• Use Amplitude to record, monitor and analyze user behaviors.
• Adopt scrum development with project management tools like Jira, Slack, Notion, Trello to improve efficiency.
  
• Standardize git flow and coding style with teammates to improve co-working performance.
  
• Use Python and gspread to transform several spreadsheets into configurations files and update remote version with shell script automatically.
• Write test cases to increase service reliability.

Backend Developer – AS Carpooling, Mar 2020 ~ Apr 2020

• Use Express.js with to build API Server along with MySQL as database. Implement several APIs such as login/register, confirm/cancel matching, rating, etc.
• Use Sequelize ORM. and its modularized functions to improve efficiency and reduce complexity.
• Introduce GraphQL to let frontend able to query custom information based on their needs. Moreover, frontend can retrieve all relevant data through GraphQL recursive nested objects.
• Create error handler to format error information. Conceal sensitive information and simplify error message for easier debugging.

Backend Developer – TripTrip, Jun 2019 ~ Oct 2019

• Use Express.js to build API Server along with MongoDB as database. Implement features like login/register (including Facebook, Google), create/edit trips, keyword search of trip/attractions and so on.
• Use Google Map Place API & Python to acquire and preprocess attractions data.
• Use Imgur to build image uploading feature.
• Use MongoDB Driver to achieve multi-criteria and multi-field keyword search.

IT Intern – Flow Inc., May 2020 ~ Sep 2020

Flow inc. AI team focus on developing platform aimed at computer vision learning along with various tagging tools and quality management system. Devoted to training handicapped staying at home to become data tagging personnel and providing high quality tagged data for AI application.

• Retrieve labeled data in database and pack them into various forms (CSV, XML, JSON, YOLO) based on clients' needs.
• Preprocess clients' raw data into more structured and easy-to-handle format and import it into platform for tagging personnel.
  
• Configure files on remote server to create new reports. Check system logs and fix issues in case of errors.
  

Teaching Assistant – Alphacamp Full-Stack Courses, Apr 2019 ~ Oct 2019

ALPHA Camp's mission is to help people build skills, mindsets and community in this era of technology through online education.

• Based on students' problems regarding the course, use methods and examples that are easy to understand to explain and help them learn.
• Check students' assignments and provide constructive suggestions and feedback.