1. Developed https://fivespot.io - web app sells membership and additional services of co-working space - lead project as project manager and backend developer - implement adapters for external API (payment, access permission, etc) - designed architecture and wrote code. - key library & frameworks = NextJS, FastAPI + SQLAlchemy + pydantic + celery 2. Booking System for enterprise customer - provided per customer schema split and dedicated subdomain customization. - fullstack development based on react, django, postgresql. 3. Proxy API for Access control - scheduling and validate access permission request for external API

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1. Video up&download service for Sandbox Creator - service download video from creator's youtube channel and upload to other video platform - tried to build service architecture based on event driven, DDD and containerized environment - down&uploaded total 100k videos and avg 150 videos/day at that time - used on youtube-dl, airflow, sanic, rq, firebase, google&youtube apis - also provided admin front page with react-admin to control service 2. Youtube data collector & data lake - gathers statistics and data of youtube video from youtube api, youtube page and many other source - tracks almost 600k video's statistics every day. - crawling jobs run on airflow - build datalake on bigquery, elasticsearch and RDB 3. Payment for sandbox creators - legacy system built with spring, mybatis to calculate creator income - operate, add function, fix bug to support monthly settlement 4. creator partnership management - participate in weekly (sometimes monthly) content planning of Youtube creator - help them to get more view, fan and revenue - follow content trend and analyze channel of creator - suggest video concept, scenario

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Routine : - refactor, debug legacy code of System Management Solution ( usually with dumped core and gdb ) What i've made: 1. Docker Image migrating whole deployment of solution 2. IPMI Polling module gathering various sensor data ( with java , verax ipmi library ) 3. TCP communication module for a multithread process 4. built CI system with GitLab, Jenkins, shell, groovy, batch script 5. configured Proxy system with stunnel and nginx for db connection and authentication in encapsulated network.

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[Cashslide] - Marketing and Sales manager

[Chupar] - Augmented Reality Application - designed system work flow and business architecture

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