CTO Office Engineer

EARTHBRAIN

TypeScript

JavaScript

About this role

This role sits in EARTHBRAIN's CTO Office, a cross-product team formed to address architecture, technology, and process fragmentation across the company's parallel construction-tech products. Responsibilities include investigating technical issues across products and proposing and implementing improvements; architecture design, code review, and technical validation; maintaining and improving CI/CD and cloud infrastructure; technology selection, security review, and performance improvement; driving cross-product development efficiency and standardization; and direct hands-on participation in product development as needed. Required: full-stack or full-cycle development experience, AWS or GCP build/operation experience, TypeScript-centered development experience (C#, Java, or Python also welcome), experience with architecture design and CI/CD setup, ability to identify technical issues independently and drive them from proposal to execution, and native-level Japanese. Conversational English is welcome (translation/interpretation support available), as is IoT/hardware/robotics knowledge and prior team lead or management experience, though neither is required. Employment is full-time under a discretionary labor system, with hybrid work requiring in-office attendance about two days per week at the Roppongi, Tokyo office; salary is negotiable based on ability and experience.

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