Mujin - Senior Software Engineer (Robotics OS Validation & Simulation)
Requirements
• BSc degree or higher in Computer Science, Computer Engineering, Robotics, or related fields (or equivalent academic or work experience). • Proven experience developing production-quality software systems, not just test scripts. • Proficiency in designing and implementing test automation frameworks and test cases for software systems. • High proficiency in Python for developing test automation frameworks and test cases. • Advanced Linux user with extensive experience in Linux software development. • Business-level English communication skills. • High motivation to deliver a high-quality robotics software platform and make a positive impact on the world. • Robotics Systems • Experience with robotics frameworks (ROS, OpenRAVE, or similar). • Experience working with robotic simulation environments. • Software Systems • Strong knowledge of distributed systems and inter-process communication. • Experience with messaging systems (e.g., ZeroMQ). • Testing & Automation • Experience building large-scale automated test systems. • Experience with E2E frameworks (e.g., Playwright). • Familiarity with 3D programming and rendering pipelines. • Proficiency in C++ or TypeScript. • Business-level Japanese communication skills.
Responsibilities
• Testing Infrastructure • Design and implement test automation frameworks that validate cross-functional behaviors of robotic systems within Mujin OS (e.g., vision-to-motion coordination, robot-to-conveyor synchronization). • Build end-to-end test cases that simulate real customer deployments and operational workflows. • Develop simulation components representing robots, sensors, conveyors, and warehouse systems. • System Validation & Debugging • Analyze test results and system telemetry to detect behavioral issues or performance regressions. • Work with cross-functional engineering teams to isolate and resolve system-level failures. • Technical Leadership • Improve testing methodology and infrastructure across the engineering organization. • Review code and mentor engineers in testing practices and quality engineering.
Benefits
• You will not be running repetitive manual tests or writing simple web automation. Instead, you will design the systems that validate how multiple machines—robots, sensors, conveyors, and software—interact in a shared physical workspace. Your work will ensure that complex robotic systems configured by customers operate reliably in real production environments. • Interview Process: • Coding Assessment: Initial technical evaluation. • HR Interview: Discussion with Human Resources. • Hiring Manager Interview: One or two rounds with the hiring manager. • Take-Home Assignment & Feedback Interview (If Applicable): A task to complete on your own, followed by a feedback session. • 3-8-5 Tatsumi, Koto-Ku, Tokyo 135-0053, Japan • 8:45 - 17:45 (with a 60-minute break) • Additional bonuses are available based on performance • Every Saturday and Sunday • Annual paid leaves • Maternity leave and Childcare leave • Flex Holiday (take public holidays on days of your choice) • Other holidays as defined by the company • Flexible dress code policy • Commuting allowance • Japanese Social Security (Health Insurance, Pension, Labor Insurance) • Monthly team dinner support • Free buffet lunch every workday • Free vending machines (offering drinks and snacks) • High-end coffee machine • Exclusive Employee Gym Access • Japan Relocation Support • Flight ticket support • Shipping expenses coverage up to a specified limit • Assistance for housing • We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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