Senior / Principal Ruby On Rails Dev (Aws , Backend)

・ Design, develop, test, operate, and refactor products using Ruby on Rails.
・ Propose and implement new features and improvement ideas.
・ Collaborate with product managers and designers to define requirements and specifications.
・ Architecture design based on requirements, middleware selection
・Continuously learn about technical trends and industry best practices and apply them to the product.
・ Measurement of effects for quality improvement and implementation of service improvement measures

■ Development environment
Development Language: Ruby (on Rails)
Infrastructure: AWS, GCP
CI/CD：Circle CI / Codebuild
DB: Amazon Aurora (MySQL compatible edition), Elasticsearch, DynamoDB
Configuration management: Ansible
Deploy / Build: CodePipeline, CodeBuild, CircleCI, GitHub Actions
IaC: Packer, Terraform
Monitoring: Datadog, bugsnag
Others: swagger, Docker, ZenHub, Figma, Slack / Jira

■REQUIREMENTS
Must-have:
・ 5+ years of experience in developing and operating Web services using Ruby on Rails
・ Knowledge and development experience with database systems
・ Experience using cloud platforms (AWS, GCP, Azure, etc.)
・ Experience in API design, development, and documentation
・ Understanding of the software development lifecycle
・ Programming, debugging, and testing skills
・ Good at English communication

Nice to have:

・ Experience as a technical lead throughout the full project development lifecycle
・ Experience of discovering problems from logs and solving problems
・ Experience in developing systems using container technologies such as Docker and Kubernetes
・ Experience in designing architecture based on application requirements and selecting middleware
・ Experience of publishing and contributing OSS
・ External technical output experience (writing, technical blog, stage, etc.)