Lead development projects for digital book services, managing requirements, design, and vendor collaboration.
About this role
Dwango's education business is hiring a Rails Engineer for the server side of ZEN Study and related services, used with ZEN University and the N, S and R High Schools.
The engineer works from requirements to operation: hearing requirements and making proposals, designing safe and efficient architecture, building and improving server-side applications, implementing new services and features, tuning and fixing bottlenecks as demand changes, and handling incidents including temporary fixes and root-cause removal. The stack is Ruby with Ruby on Rails and Padrino on AWS, with PostgreSQL, Redis, Elasticsearch and DynamoDB, developed with Docker and deployed to Kubernetes on EKS.
Applicants need IT fundamentals at the level of the Fundamental Information Technology Engineer exam, three or more years of server-side development, two or more years of Rails including a reasonably complex feature, such as integrating data with external SaaS or designing schema-driven JSON APIs, plus RDB and SQL basics and pull-request teamwork. Domain modelling, distributed architecture, performance tuning, project leadership and AWS or Kubernetes experience are preferred.
This is an AI-generated summary of the employer's original posting — details can be incomplete, out of date or simply wrong. Always confirm everything on the official posting before applying.
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