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 Rails Engineer role is based in Tokyo and focuses on the company’s food and health services, including the Oishii Kenko website and other applications. The work covers both server-side and frontend development, with engineers expected to consider user needs, identify usability issues, propose improvements, and carry initiatives through implementation and measurement of results.
Responsibilities include designing and developing APIs, models, databases, and other server-side components with Ruby on Rails. Frontend work includes designing and developing interfaces using React.js, TypeScript, haml, and Sass. The role also contributes to infrastructure for the company’s services, using AWS and GCP. AWS is the main infrastructure platform, with services deployed on ECS; GCP is used for analytics and machine-learning-related tasks. CircleCI is used for most services.
The products support food management and health-related use cases for patients and other consumers, as well as services for medical institutions. The company develops the Oishii Kenko food-management application and the Kakaris dietary guidance solution for medical institutions. Engineers work with other professional roles, including designers and registered dietitians, and the company describes itself as a startup with approximately 40 employees.
Professional Ruby experience is not required. Applicants should have service-development experience using a programming language, regardless of the language. PHP or mobile-application development experience can be used when changing career paths into Ruby development. For the junior development track, application-development experience using Ruby or Ruby on Rails is accepted even without professional engineering experience, with at least four months of study given as a guideline. Students applying through a new-graduate track are not eligible.
Engineers have discretion over which initiatives to pursue and which technologies to adopt, and can experience service development from planning through completion. Source-code review by another engineer is required. The company states that remote work and core-time flextime are available. A MacBook Pro is provided as the development machine, and online interviews are available.
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.
Similar jobs
Develop and improve Android apps for health and nutrition services. Analyze user behavior, define features, improve app experiences, review code, test releases, and maintain mobile CI/CD.
As a data science research and development intern, analyze real-world food, health, and lifestyle data with Python and SQL for recommendation, clinical-research, and business-reporting projects.
Develop end-to-end machine-learning models for autonomous-driving taxis from camera and LiDAR data, then evaluate and optimize them in simulation and real vehicles.
Build and operate shared AWS cloud infrastructure across multiple products, using Terraform, Kubernetes and GitHub Actions to improve reliability and incident response.
Build and manage internal IT and security foundations, including policies, security tools, Microsoft 365, assets, accounts, help desk, and workflow automation. Remote and office work are available.