Hardware-in-the-Loop (HIL)
We build and maintain HIL test setups to simulate robot and sensor signals, validating controller behavior before actual connection.
Embedded System QA Team
What is the mission of the Embedded System QA team?
Section titled “What is the mission of the Embedded System QA team?” Quick Answer
The Embedded System QA team at Mujin ensures the safety, reliability, and standards compliance of our controllers, validating low-level firmware, industrial safety circuits, and electrical systems under stressful test conditions.
What does the Embedded System QA team do?
Section titled “What does the Embedded System QA team do?”We verify that our physical controllers and low-level interfaces never fail:
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.
What technology stack and engineering workflows do we use?
Section titled “What technology stack and engineering workflows do we use?”We design rigorous physical and automated verification pipelines:
- Testing Frameworks & Scripts
- Python scripting for automated test orchestration and data analysis.
- PLC programming tools for interfacing and validating safety sequences.
- Measurement Instruments
- Oscilloscopes, digital analyzers, and programmable power supplies.
- Custom-built breakout boxes for hardware fault injection.
- 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 the Embedded System QA team?
Section titled “Who succeeds in the Embedded System QA 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.
How can you join the Embedded System QA team?
Section titled “How can you join the Embedded System QA team?”If you want to validate safety-critical industrial hardware systems, apply today:
View Open Positions Check out our active job openings in Tokyo and become part of our international team.