Full Stack Engineer
Design, implement, test, and operate backend Web APIs and large-scale data processing pipelines using Go, Python, and cloud services. Build and maintain web frontends with TypeScript, React, and Next.js, implement test automation and CI/CD, improve performance, refactor code, develop shared libraries and UI components, and respond to on-call incidents.
Responsibilities
- Develop and operate backend systems including Web APIs and data processing pipelines
- Design and implement frontend web applications with TypeScript, React, and Next.js
- Write and maintain automated tests and test code
- Improve performance and refactor legacy code to reduce technical debt
- Develop and maintain shared internal libraries and UI components
- Manage deployments and CI/CD pipelines
- Respond to on-call incidents and perform operational troubleshooting
Requirements
- 2+ years of backend development experience in Python or JavaScript
- 2+ years of frontend development experience with TypeScript, React, or Next.js
- Experience designing, developing, and operating Web APIs and data processing pipelines on cloud services
- Experience with database design, development, and operation using RDBMS, NoSQL, or NewSQL
- Experience using Git for version control
- Business-level Japanese proficiency equivalent to JLPT N1
Benefits
- Complete social insurance through the Kanto IT Software Health Insurance Association
- Commuting allowance
- Communication allowance
- On-call allowance
- Company-provided MacBook Pro or Windows PC
- Paid holidays and leave including weekends, national holidays, year-end and New Year holidays, annual paid leave, summer leave, sick leave, and bereavement leave