English summary for screening — check the original posting before applying.
JAPAN AI Inc. is building Japan's largest AI agent system, aiming to become the 'company brain' by integrating various SaaS products. As a Full Stack Engineer, you will deconstruct business processes and implement AI-driven core systems, contributing directly to product evolution based on customer feedback.
Must-haves
- 1+ year of software engineering experience
- Experience with Python or TypeScript
- Full-stack orientation (willingness to learn both backend and frontend)
- Native level Japanese proficiency
Nice-to-haves
- Full-stack development experience (Python, Node.js, TypeScript, React, Next.js)
- Cloud environment development/operation experience (AWS, GCP, Azure)
- Experience with AI agent frameworks (LangChain, LangGraph, AutoGen, CrewAI)
- Experience using/integrating enterprise SaaS products
- Ability to read technical documentation in English
Tech stack
PythonTypeScriptReactNext.jsNode.jsNXLangChainLangGraphJAPAN AI STUDIO SDKGCPKubernetesDockerBigQueryPostgreSQLSlackConfluenceLinearGoogle WorkspaceGitHubNotionClaude Code MAX PlanCursorChatGPTDevin
Work style
Hybrid work (3 days in office, 2 days remote) in Tokyo. Flexible working hours with negotiable core time.
Other notes
Annual salary: ¥5,000,000 - ¥8,000,000.