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
The iOS engineer develops, operates, and improves the company’s iOS application from product planning through implementation, release, and effectiveness measurement. The role includes designing and building new features and improvements, maintaining the application, and working on initiatives that improve the user experience.
Current product areas include the Tabering feature, which helps users visualize daily behavior, a diet mode for checking calorie balance, and optimization of the registration flow to improve the initial user experience. The engineer forms hypotheses from user feedback, discusses how to encourage continued behavior and communicate features effectively, and participates directly in data analysis, A/B testing, and reviewing user comments.
The service supports people who want to maintain an enjoyable and healthy diet despite illness or health concerns. It is delivered through web and mobile applications and includes more than 12,000 recipes supervised by registered dietitians. Product functions include personalized menu suggestions based on nutritional requirements and tracking of weight, blood pressure, and blood glucose. The service addresses more than 80 diseases and life stages.
The development model gives engineers responsibility for leading product work without a separate director role. Large feature additions and improvements are planned with the CEO and members of different disciplines, while smaller user-experience improvements can be initiated by engineers. The team works with Android and web engineers, designers, registered dietitians, editors, machine-learning specialists, and data scientists.
The workflow covers defining the problem and hypotheses using KPI data and user feedback, project kickoff, UX design and wireframing in Figma, implementation planning in Notion and spreadsheets, daily progress sharing, task management with GitHub and Notion, internal testing with TestFlight, release, and effectiveness measurement using BigQuery and Firebase. Findings are recorded in Notion and Scrapbox for later projects.
After joining, the engineer starts with implementation in an existing project and gradually gains opportunities to lead. A skill map and one-on-one meetings are used to identify development areas and support progress. The position is full-time, aimed at mid-career candidates, and located in Tokyo. Online interviews are available. The office is a single-floor, free-address workplace with drinks available. No separate education, years-of-experience, salary, language, or visa conditions are stated in the posting.
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