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| Hiring Company | Saas & AI company | 
| Location | Tokyo - 23 Wards, Shinjuku-ku | 
| Job Type | Permanent Full-time | 
| Salary | 8 million yen ~ 15 million yen | 
Key Responsibilities
Expected Role
You will act as the technical leader of the frontend team — focusing purely on engineering excellence and technical strategy (people management is handled by an Engineering Manager).
Your leadership will directly shape the engineering culture, product quality, and technical standards of the organization.
Tech Stack
Frontend: React, TypeScript, OpenAPI
Backend: Python
Cloud: AWS, GCP
Containerization: Docker, AWS Lambda
Databases: MongoDB, MySQL, AWS RDS, DynamoDB, OpenSearch, Redis
CI/CD: GitHub Actions, CircleCI, Jenkins
Architecture: Domain-Driven Design (DDD)
Version Control: GitHub
Tools: Slack, Jira, Confluence, Google Workspace
AI Tools: JAPAN AI, GitHub Copilot, Claude 3.5
(All AI tools are fully company-subsidized.)
Hardware: Windows or Mac (selectable)
Work Style
Hybrid work model: 3 days in the office, 2 days remote.
| Minimum Experience Level | Over 6 years | 
| Career Level | Mid Career | 
| Minimum English Level | Business Level (Amount Used: English Only) | 
| Minimum Japanese Level | None | 
| Minimum Education Level | Bachelor's Degree | 
| Visa Status | Permission to work in Japan required | 
Must-Have
Nice-to-Have
| Job Type | Permanent Full-time | 
| Salary | 8 million yen ~ 15 million yen | 
| Salary Bonuses | Bonuses included in indicated salary. | 
| Work Hours | 10:00~19:00 | 
| Holidays | 完全週休二日制 所定休日:土・日・祝日 休暇:年次有給休暇、夏季休暇(3日)、年末年始休暇(12月31日〜1月3日)、慶弔休暇 | 
| Industry | Internet, Web Services | 
| Company Type | Large Company (more than 300 employees) | 
| Non-Japanese Ratio | Majority Japanese |