Analyze JMDC and Omron Group data to develop new data-driven services, build predictive models, advise industry clients, improve services with machine learning, and publish findings.
About this role
This role leads backend development for JMDC’s healthcare big-data platform and web services. Responsibilities include designing, developing, and operating healthcare data integration systems and web applications, including replacement of existing components with Go. The engineer will design architectures with performance and scalability in mind, modernize existing products, and promote technology renewal.
The role also drives organization-wide adoption of AI-assisted development. It involves using tools such as GitHub Copilot and Claude Code in daily development, documenting best practices for improving design, implementation, and testing with AI, and sharing those practices through documentation, study sessions, and code reviews.
Required qualifications include at least three years of practical experience designing and developing web applications, experience designing relational database tables and optimizing queries for performance, regular use of AI tools such as GitHub Copilot or Cursor in development, and experience sharing technical knowledge or efficiency methods with colleagues through documentation or instruction.
Experience developing and operating web applications with Go, designing systems handling large traffic or large data volumes, serving as a tech lead or mentor, working as a Scrum Master in agile development, or building AI-enabled automation and CI/CD pipelines is welcomed. Practical Go experience before joining is not required when the candidate has deep senior experience in another language and can learn Go with AI support.
The named environment includes Go, React, TypeScript, Python, AWS, MySQL, Snowflake, PostgreSQL, Vertica, Auth0, GitHub Actions, Terraform, GitHub Copilot, and Claude Code. Datadog and Google Analytics are used for monitoring and analytics. The position is based initially at the Tokyo office and allows remote work in Japan. Working hours use a flextime system with an 11:00–15:00 core time and eight standard working hours per day. Benefits include health insurance, defined-contribution pension, employee stock ownership, paid leave, technical-book and certification support, and assistance with engineering event participation.
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