Hi, I'm OA. Experienced in back-end building Restful/GraphQL API service and front-end building React SPA. My primary back-end skills are Node.js, Koa, Express, GraphQL, PostgreSQL, MySQL, and front-end skills are HTML, CSS3, SCSS, React, Redux, and React Native. I am also skilled in Docker, Makefile(shell script), and Jest(unit test and integration test). As for AWS services usage, I'm proficient in RDS, ElasticCache, ECS Fargate, X-Ray, CodePipeline, CloudFront, Lambda, and API Gateway, etc. Besides my main career, I’m the co-founder of a Taiwanese slow fashion brand - MANICHIACHIA.