Skip to content
Welcome to the front line of industrial automation

Embedded System QA Team

At a Glance

Section titled “At a Glance”

The Embedded System QA Team The Embedded System QA team validates the firmware, hardware, and safety systems of Mujin

Team Mission

Section titled “Team Mission”

We build high-performance automation software and systems at Mujin, enabling autonomous perception, motion planning, and real-time execution.

Core Responsibilities

Section titled “Core Responsibilities”

We verify that our physical controllers and low-level interfaces never fail:

Hardware-in-the-Loop (HIL)

We build and maintain HIL test setups to simulate robot and sensor signals, validating controller behavior before actual connection.

Safety System Validation

We verify emergency stop loops, safe speed limitations, and safety PLC programming logic to meet strict ISO standards.

Firmware & Protocol Testing

We test low-level communications (EtherCAT, Modbus, Profinet) and firmware updates for stability and edge-case handling.

Tech Stack & Workflows

Section titled “Tech Stack & Workflows”

We design rigorous physical and automated verification pipelines:

  1. Testing Frameworks & Scripts
    • Python scripting for automated test orchestration and data analysis.
    • PLC programming tools for interfacing and validating safety sequences.
  2. Measurement Instruments
    • Oscilloscopes, digital analyzers, and programmable power supplies.
    • Custom-built breakout boxes for hardware fault injection.
  3. Execution & Bug Hunting Workflow
    • Designing tests to stress communications protocols and simulate noise.
    • Performing regression testing on new firmware and electrical configurations.

Who Succeeds in Our Team

Section titled “Who Succeeds in Our Team”

We look for detail-oriented testing engineers with a hardware focus:

  • Technical Competence: Experience in embedded systems, electronics, industrial automation, and scripting.
  • Effective Collaboration: Communicating hardware defects clearly to both electrical engineers and firmware developers.
  • Continuous Learning: Adapting to new industrial safety laws and building modular, reusable test systems.

Open Positions

Section titled “Open Positions”

If you want to validate safety-critical industrial hardware systems, apply today:

View Open PositionsCheck out our active job openings in Tokyo and become part of our international team.