採用情報 技術スタック カテゴリ 採用技術/サービス Design System Figma, Storybook Frontend Language React, Typescript, Next.js Backend Language Ruby on Rails Database MySQL(8系), Firebase Infrastructure AWS (ECS Fargate, RDS, S3, CloudFront, Lambda, API Gateway, Cognito, Amazon Inspector など) Infrastructure as Code Terraform CI/CD GitHub Actions, CircleCI, CodePipeline Code Management GitHub