Team-wise:- Set up seasonal goals for the team.- Mentored team members.Product-wise:- Scheduled timelines for each product/project.- Prepared wireframe and user stories then broke them down into tasks.- Communicated with stakeholders.Development-wise:- MLOps * Designed and built the whole MLOps from scratch with Docker, Ansible, Terraform for AWS and FastAPI. * Encrypted and Dockerized Machine Learning model.- Machine Learning pipeline apps * Designed and implemented an annotating app to annotate images with Ruby on Rails and Vue.js. * Designed and implemented a satellite analysing app based on maps with Ruby on Rails and React.js. * Designed and implemented inference apps to support CLI, API and web GUI.

- Mentored junior developers.- Designed and implemented apps to follow PCI Compliance.- Migrated monolith Rails app to Rails with React.- Designed and implemented the architecture of apps.- Refactored functions and designed architecture for better quality and maintenance.

- Mentored and guided junior developers.- Redesigned database with hybrid RDBMS and NoSQL to improve database performance by reducing 40% queries.- Refactored functions and designed architecture for better quality and maintenance.- Organized internal training for RSpec, Redis and CoffeeScript.

- Built system from scratch.- Designed the architecture of the app.

- Led Taiwan team to collaborate with another team in China.- Built backend system to handle 20k+ daily active users.- Designed and implemented multiple platform systems for mobile, tablet and PC.- Built SSO (single sign-on) for multiple platform systems.- Built in-app purchase validation for mobile apps.