Robotics & AI Engineer — Founding Team Member

・Company Overview

Muso Action is a Tokyo-based robotics startup with a mission to
free humans from repetitive physical labor through Physical-AI
.

We develop software and systems for
general-purpose robot workers
for logistics, manufacturing, and retail by integrating generative AI, Vision-Language-Action (VLA) foundation models, force control, and teleoperation.

We have
raised approximately USD 1 million in our seed round
and are now in an execution phase, running
active proof-of-concept projects with major Japanese manufacturers and logistics companies
.

Our focus is not research alone, but building deployable robotic systems that work reliably in real production environments.

・This Role Matters

This is
not a typical engineering position
.

You will join Muso Action as a
founding-stage team member
, playing a critical role in:

• Shaping the company's core technology
• Defining early product architecture
• Influencing the long-term technical and business direction

The systems you design and the code you write will become the foundation of the company.

・Role Summary

As a Robotics & AI Engineer, you will work across one or more of the following areas:

Foundation Models & Machine Learning (VLA)

• Design data collection, training, and evaluation pipelines
• Develop action representations and policies for robots
• Improve success rate, robustness, and generalization
• Build reproducible evaluation frameworks

Robot Control & Real-Time Systems

• Implement real-time control loops in C++
• Design force/torque sensing and safety mechanisms
• Integrate learning-based policies with control stacks

Teleoperation & Full-Stack Robotics

• Develop low-latency streaming and control interfaces (WebRTC)
• Build robot-cloud pipelines (ROS2, gRPC)
• Improve fleet management, logging, and monitoring

・Basic Qualifications (One or More)

• Experience with Python / PyTorch for ML training or inference
• C++ experience in robotics or real-time systems
• Full-stack or cloud-connected system development experience
• Strong ownership and ability to work in ambiguous environments

・Preferred Qualifications

• ROS2, WebRTC, EtherCAT, RTOS
• Force control, motor control, hardware-close development
• MLOps, data pipelines, experiment tracking
• Field deployment of robotics systems
• OSS contributions or research publications

・Employment Details

• Location:
  Tokyo (hybrid; on-site for hardware testing)
• Employment Type:
  Full-time (contract / intern negotiable)
• Work Style:
  Flexible / discretionary working hours
• Benefits:
  Social insurance, paid leave, stock options

・Compensation

Annual salary range: approximately
USD 55,000 – 125,000
, depending on role, experience, and responsibilities.

・Support for International Candidates (Japan Relocation)

• Full support for Japanese work visa sponsorship
• Assistance with immigration documents and procedures
• Relocation guidance (housing, banking, daily setup)

・Why Join Now

• You will help
  build the company from the ground up
• Your work directly impacts real customers and deployments
• This is a rare opportunity to shape both technology and organization at an early stage