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 role is based in Tokyo and focuses on developing the company’s healthtech services, centered on the “Oishi Kenko” website and other applications. The engineer works across server-side and front-end development, considering improvements from the user’s perspective and proposing ways to make the services easier to use.
Responsibilities include designing and developing APIs, models and databases with Ruby on Rails, as well as designing and implementing front-end features with React.js, TypeScript, Haml and Sass. The role also includes building infrastructure for the company’s services using AWS and GCP. AWS is the primary infrastructure platform, with services deployed on ECS, while GCP is used for analytics and machine-learning-related tasks. CircleCI is used for most services.
Candidates are expected to have experience developing services with a programming language, regardless of which language was used. Professional Ruby experience is not required for candidates seeking to change careers from another programming language or from mobile application development. A junior development track also accepts application development experience with Ruby or Ruby on Rails, including learning experience of approximately four months or more, even without professional engineering experience. Students applying through a new-graduate route are not eligible.
The products address food, health and medical-care needs. The company develops the “Oishi Kenko” food-management application for patients and consumers, the Kakaris dietary-guidance solution for medical institutions, and other health-related services. Engineers work with designers and registered dietitians, and the organization also uses accumulated food and health data in joint research with medical universities.
Engineers have substantial discretion over service development. They can consider and judge measures, take a service from planning through implementation and effectiveness measurement, and lead decisions about development technologies. The team aims to increase engineer-led planning of user-growth and marketing initiatives while monitoring KPIs. Source reviews by other engineers are required.
Remote work and core-time flextime are used. Online interviews are available, and a MacBook Pro is provided as the development machine. The company has approximately 45 members and provides onboarding that includes monthly one-on-one lunches with a mentor and regular meetings with the CEO during the first six months.
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.