Use Python and SQL to analyze real-world food, health, and lifestyle data, contributing to recommendation systems, clinical research, visualizations, and business reports in a Tokyo R&D internship.
About this role
This full-time, mid-career Rails Engineer role develops the Oishi Kenko website and other applications provided by the company. The work covers both server-side and frontend implementation, with engineers expected to consider user needs, identify usability issues, propose improvements, and take ownership of service changes from planning through implementation and impact measurement.
Responsibilities include designing and developing APIs, models, and databases with Ruby on Rails, as well as designing and implementing frontend features using React.js, TypeScript, Haml, and Sass. The role also contributes to infrastructure development for the company’s services, primarily using AWS and also using GCP. Services are deployed on ECS, while GCP is used for analytics and machine-learning-related tasks. CircleCI is used across almost all services as the CI tool.
Applicants are expected to have service development experience using a programming language, regardless of the language used. For the junior development track, professional engineering experience is not required, but applicants should have application development experience with Ruby or Ruby on Rails; the stated learning benchmark is at least four months. Experience with PHP or mobile application development can be used when changing careers into Ruby development. Applicants applying as students under a new-graduate track are not eligible.
The company develops health-tech products related to food, nutrition, and medical care, including the Oishi Kenko meal-planning and nutrition-management application and the Kakaris dietary-guidance solution for medical institutions. Engineers work with designers and registered dietitians, and the role is intended to support broad involvement across service planning, development, infrastructure, and improvement initiatives. Engineers can lead decisions about measures and technologies, and source reviews by other engineers are required.
The company provides a MacBook Pro as the development machine. The work location is Tokyo. Remote work and core-time flextime are available, and online interviews are accepted. New employees receive onboarding support including monthly one-on-one lunches with a mentor during their first six months and regular meetings with the CEO.
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