Corporate Operations (Founding Team)

About the role

A back-office role supporting Muso Action through its founding phase. Centered on accounting, general affairs, and contract admin — with room to grow into PR and robot-site support depending on your interests.

Responsibilities

• Accounting support (entry assistance in accounting/HR systems, invoice checks and payment coordination, corporate card / online banking processing, cloud document filing)
• General affairs & equipment (ordering and managing development equipment, consumables and PCs, postal handling)
• Contracts & SaaS admin (contract filing and management, account issuance and inventory of internal systems)
• [Optional] PR support (site updates, press-release submission, event announcements, robot photo/video assets)
• [Optional] Robot field-data support (teleop recording and trial-site assistance, data organization and labeling, simple setup/maintenance)
• [Optional] Recruiting admin (candidate management, sourcing support)

Why this role

• Support a founding-phase startup from the back office
• Grow beyond accounting and general affairs into PR and field support
• See robots and frontier AI being built, up close

Required

• Basic groupware skills (mail / calendar / documents / spreadsheets)
• Communication over business chat
• Native-level Japanese (client-facing work)
• Basic business email

Nice to have

• Hands-on experience with SaaS back-office systems (accounting / HR / expenses)
• Back-office experience at a startup
• English (reading/writing level; overseas vendors and engineers)
• Simple workflow automation (comfortable with AI tools)
• PR / social media experience
• Work experience in manufacturing, logistics, or retail

Who we're looking for

• You enjoy the unfinished, fast-changing nature of a startup
• You propose better, more interesting ways — beyond what you're asked
• You're accurate with numbers and documents, and double-check carefully
• You handle confidential information appropriately
• Interest in robots, frontier AI, and the shop floor is a plus (all ages, genders, and backgrounds welcome)

Employment & pay

• Employment: contract or part-time (negotiable)
• Pay: from ¥2,000/hour (negotiable by experience)
• Frequency: 1–2 days per week
• On-site required (documents, deliveries, and equipment handling)
• Start: as soon as possible

Location

Daini TOC Bldg. 6F, 7-21-11 Nishi-Gotanda, Shinagawa-ku, Tokyo