AI Robotics Engineer

About the role

This role builds the “brain” of Muso-roid, our general-purpose robot worker. You own the full learning stack of physical AI — from imitation- and reinforcement-learning models to data collection and simulation environments.

Responsibilities

• Implement and evaluate imitation-learning (VLA, ACT, etc.) and reinforcement-learning (PPO, etc.) models
• Robotics R&D: physics-simulator environments, CV preprocessing for model training, PID tuning, and more
• Apply human egocentric data to robot learning; paper surveys and prototyping around WAM techniques

Why this role

• Put state-of-the-art VLA and imitation learning to work on real robots, not just in papers
• Design the entire learning pipeline — models through data collection — with real ownership
• Shape technology choices and engineering culture as a founding-phase engineer

Required

• Hands-on implementation/evaluation of imitation or reinforcement learning on real robots
• Experience building physics-simulator environments or data-collection pipelines for model training
• Development experience in Python and C++
• Development experience on Linux
• Experience developing with AI coding tools

Nice to have

• Development/evaluation experience with LeRobot / Isaac Lab
• Manipulation-model development using human egocentric data
• WAM development experience
• Hands-on training/inference experience with PyTorch or similar

Who we're looking for

• You insist on building robots that are truly used and relied on in the field — not built for demos
• You enjoy the absence of structure, and can design and establish things from zero to one
• You welcome autonomy and speed in a small team, and drive yourself forward

Employment & salary

• Employment: full-time
• Salary: ¥8M–¥20M (depending on experience and skills)
• Discretionary labor system for specialized work

Location

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

Benefits

• Full social insurance
• Two days off per week (Sat/Sun) and national holidays
• 20 days of paid leave, granted from the first year