Senior Backend Developer (Ruby on Rails)

freeC's Client

• Web application development and API development with Rails
• Architecture design based on requirements, middleware selection
• Measurement of effects for quality improvement and implementation of service improvement measures
• Refactoring existing products for microservices
• Formulation of new service specifications in collaboration with product managers
• Development language: Ruby (on Rails)
• 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

• More than 3 years of development experience
• Practical experience in web application development regardless of language
• System service operation experience (1 year or more)

Nice to have:

• Rails scaling experience
• Performance tuning experience
• Those who can discuss Rails best practices and commit to development according to the results
• Experience in the building and construction industry
• BtoB SaaS / Business software development experience
• Web service development and operation experience with Ruby on Rails
• Experience building microservices architects
• Development experience including infrastructure and front end in addition to back end
• OSS publishing and contributing experience

• Basic Insurance
• Other benefits will be created based on discussion with HR/GA manager and CEO