Rails Engineer (Mid-level)

Oishi Kenko

Rails

AWS

About this role

This full-time role develops the company’s “Oishii Kenko” website and other related applications. Day-to-day work covers both server-side and frontend implementation, proposing improvements from the user’s perspective, and taking features from planning and design through development and release.

Responsibilities include designing and developing APIs, models and databases with Ruby on Rails. Frontend work uses React.js, TypeScript, Haml and Sass. The role also includes building infrastructure for the company’s services with AWS or GCP. The team uses AWS as its primary infrastructure, deploys services on ECS, uses GCP for analytics and machine-learning tasks, and uses CircleCI for most services.

Applicants should have experience developing a service with a programming language, regardless of the language used. Practical Ruby experience is not required; experience with PHP or mobile applications can be used when changing career direction. For the junior development track, professional engineering experience is not required, but applicants should have some application-development experience using Ruby or Ruby on Rails, with a stated learning benchmark of at least four months. Students applying through a new-graduate track are not eligible.

The products are healthtech services focused on food and health. The company develops the “Oishii Kenko” meal-management application for patients and consumers, the Kakaris dietary-guidance solution for medical institutions, and other healthcare-related services. Engineers work with designers, registered dietitians and other specialists. The posting also describes opportunities to use service data in medical research and to work across product development and user growth activities.

Engineers have discretion to consider user measures, choose technologies and work through implementation and effect measurement. Code review by another engineer is required. The team aims to have engineers lead user-growth initiatives, including marketing planning based on KPIs. A MacBook Pro is provided. The company states that remote work and core-time flextime are available, and online interviews are accepted. New employees receive onboarding that includes monthly one-to-one lunches with a mentor and regular meetings with the CEO during their first six months. The listed work location is Tokyo.

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.