Robotics Algorithm Engineer (Optimization & Packing)

About Mujin

Mujin creates MujinOS, the intelligent operating system for industrial robotics. By leveraging real-time digital twins, MujinOS seamlessly connects and orchestrates equipment to achieve fully autonomous operations. At our core is Machine Intelligence (MujinMI), a unique approach offering advanced perception, planning, and control algorithms that solve the most challenging automation problems.

Trusted by globally recognized companies, we are redefining supply chain efficiency. Headquartered in Japan with growing teams in China, the US, and Europe, we invite you to join a dynamic environment where you can shape the future of automation.

Team Structure & Focus Areas

Our team develops MujinOS’s fundamental algorithmic layer, blending control algorithms, real-time motion planning, and advanced packing algorithms. This layer powers downstream applications including palletizing, piece-picking, and depalletizing. You may specialize in one track while collaborating across all:

• Control Algorithms: Real-time trajectory control, robot dynamics, multibody modeling, and precision execution.
• Motion Planning: Collision checking, sampling-based planning, optimization-based planning, high-speed bin-picking motions.
• Packing Algorithms: Geometric reasoning, packing optimization, item fitting strategies, and fast combinatorial search.

To support the growth of our Packing Algorithms team, we are looking for a Robotics Algorithm Engineer (Optimization & Packing). In this role, you will develop algorithms for geometric reasoning, item placement, and space optimization used in real-world robotic applications across logistics and warehouse automation.

Responsibilities

• Design and implement robust algorithms for 3D bin packing, container/trailer loading, and space optimization — ensuring maximal utilization and compliance with physical and operational constraints.
• Work with spatial reasoning, 3D geometry, collision detection, and geometric data structures (e.g., for crates, pallets, container interiors).
• Integrate packing logic with MujinOS’s real-time motion planning and digital-twin workflows to feed downstream robotic behavior.
• Collaborate with robotics, perception, and systems teams to ensure that packing algorithms align with robot kinematics, motion planning, and real-world operational constraints (weight, stacking rules, fragile items, rotation limits, etc.).
• Profile, test, and optimize algorithms for high performance and scalability — able to run in real time or near-real time in high-throughput logistics environments.
• Work closely with operations, product management, and customers to translate ambiguous or variable real-world constraints into robust, production-ready technical solutions.

Required Qualifications

• 3+ years of professional software engineering experience.
• Strong proficiency in Python and C++.
• Deep understanding of algorithms, computational geometry, spatial data structures, bin/packing / space-optimization problems, or operations research.
• Familiarity with optimization frameworks or ability to design custom heuristics/solvers (heuristics, meta-heuristics, constraint or combinatorial optimization).
• Excellent problem-solving skills and ability to convert ambiguous real-world constraints (logistics/trucking/warehouse rules) into concrete, maintainable software.
• Strong communication skills and a collaborative mindset; comfortable working in cross-functional teams combining software, robotics, operations, and product stakeholders.
• Exposure mixed-SKU palletizing, container loading/unloading, or dynamic storage/packing systems.
• Professional working proficiency in English (spoken and written).

Nice to Have

• Experience in logistics, warehouse automation, robotics, or supply chainsystems.
• Familiarity with robotic control pipelines, motion-planning frameworks, or integration of algorithms into autonomous systems.
• Experience with 3D visualization tools or frameworks (for simulation or debugging).

Why Mujin?

• Real-World Impact: Your algorithms become production-grade applications that run on factory floors globally.
• Elite Team: Work alongside experienced robotics specialists from top global programs (e.g., NTU, CMU, Stanford).
• Complete Autonomy: We develop the core platform in-house, unifying planning, perception, simulation, and control.
• Rapid Deployment: Solve previously impossible automation challenges and see them deployed rapidly.

Hiring 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: A task to complete on your own, followed by a feedback session (if applicable).

Employment Conditions

• Location: 3-8-5 Tatsumi, Koto-Ku, Tokyo 135-0053, Japan
• Work Hours: 8:45 - 17:45 (with a 60-minute break)
• Salary: Based on experience and skills; revision twice a year; performance bonuses available.
• Holidays: Every Saturday/Sunday, annual paid leave, Maternity/Childcare leave.

Company Benefits & Support

• Environment: Free buffet lunch every workday, free vending machines, and high-end coffee.
• Health & Wellness: Japanese Social Security (Full insurance), exclusive employee gym access.
• Social: Monthly team dinner support and flexible dress code.
• Relocation: Visa sponsorship, flight ticket support, shipping expense coverage, and housing assistance.