{"id":960832,"url":"https://alion.io/job/mujin-robotics-algorithm-engineer-optimization-packing-2","title":"Robotics Algorithm Engineer (Optimization & Packing)","company":{"id":9678,"name":"Mujin","domain":"mujin.co.jp","url":"https://alion.io/company/mujin","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":88,"open_postings":49,"ghost_share":0.122,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":222,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Robotics","role_family":"Robotics","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Tokyo, Japan"],"countries":["JP"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":8000000,"max":13000000,"currency":"JPY","period":"year","gross":null,"usd_annual":84851},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-09-03T01:04:30Z","employer_posted_date":null,"last_verified_at":"2026-09-03T01:04:30Z","board_verified":false,"closed_at":null,"days_open":43,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":43},"description":"About Mujin\nMujin 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.\nTrusted 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.\nTeam Structure & Focus Areas\nOur 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:\nControl Algorithms: Real-time trajectory control, robot dynamics, multibody modeling, and precision execution.\nMotion Planning: Collision checking, sampling-based planning, optimization-based planning, high-speed bin-picking motions.\nPacking Algorithms: Geometric reasoning, packing optimization, item fitting strategies, and fast combinatorial search.\nTo 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.\nResponsibilities\nDesign and implement robust algorithms for 3D bin packing, container/trailer loading, and space optimization - ensuring maximal utilization and compliance with physical and operational constraints.\nWork with spatial reasoning, 3D geometry, collision detection, and geometric data structures (e.g., for crates, pallets, container interiors).\nIntegrate packing logic with MujinOS’s real-time motion planning and digital-twin workflows to feed downstream robotic behavior.\nCollaborate 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.).\nProfile, test, and optimize algorithms for high performance and scalability - able to run in real time or near-real time in high-throughput logistics environments.\nWork closely with operations, product management, and customers to translate ambiguous or variable real-world constraints into robust, production-ready technical solutions.\nRequired Qualifications\n3+ years of professional software engineering experience.\nStrong proficiency in Python and C++.\nDeep understanding of algorithms, computational geometry, spatial data structures, bin/packing / space-optimization problems, or operations research.\nFamiliarity with optimization frameworks or ability to design custom heuristics/solvers (heuristics, meta-heuristics, constraint or combinatorial optimization).\nExcellent problem-solving skills and ability to convert ambiguous real-world constraints (logistics/trucking/warehouse rules) into concrete, maintainable software.\nStrong communication skills and a collaborative mindset; comfortable working in cross-functional teams combining software, robotics, operations, and product stakeholders.\nExposure mixed-SKU palletizing, container loading/unloading, or dynamic storage/packing systems.\nProfessional working proficiency in English (spoken and written).\nNice to Have\nExperience in logistics, warehouse automation, robotics, or supply chainsystems.\nFamiliarity with robotic control pipelines, motion-planning frameworks, or integration of algorithms into autonomous systems.\nExperience with 3D visualization tools or frameworks (for simulation or debugging).\nWhy Mujin?\nReal-World Impact: Your algorithms become production-grade applications that run on factory floors globally.\n Elite Team: Work alongside experienced robotics specialists from top global programs (e.g., NTU, CMU, Stanford).\nComplete Autonomy: We develop the core platform in-house, unifying planning, perception, simulation, and control.\nRapid Deployment: Solve previously impossible automation challenges and see them deployed rapidly.\nHiring Process\nCoding Assessment: Initial technical evaluation.\nHR Interview: Discussion with Human Resources.\nHiring Manager Interview: One or two rounds with the hiring manager.\n Take-Home Assignment: A task to complete on your own, followed by a feedback session (if applicable).\nEmployment Conditions\nLocation: 3-8-5 Tatsumi, Koto-Ku, Tokyo 135-0053, Japan\n Work Hours: 8:45 - 17:45 (with a 60-minute break)\nSalary: Based on experience and skills; revision twice a year; performance bonuses available.\nHolidays: Every Saturday/Sunday, annual paid leave, Maternity/Childcare leave.\nCompany Benefits & Support\nEnvironment: Free buffet lunch every workday, free vending machines, and high-end coffee.\n Health & Wellness: Japanese Social Security (Full insurance), exclusive employee gym access.\nSocial: Monthly team dinner support and flexible dress code.\n Relocation: Visa sponsorship, flight ticket support, shipping expense coverage, and housing assistance.","description_format":"text","description_chars":5371,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Japan","iso":"JP","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Logistics & Warehouse Robotics","Industrial Robotics","Robotic Software & Control Systems"],"lifecycle":[{"event":"open","at":"2026-09-16T09:36:35Z"}],"visa":[],"liveness":{"score":51,"band":"ok","label":"Likely open","p_open":0.6,"p_active":0.842,"p_room":1,"age_days":43,"expected_fill_days":222,"reasons":["seen:43","win:early"],"computed_at":"2026-10-16T05:45:00Z"},"pay":{"stated_usd_annual":84851,"is_top_pay":false},"html_url":"https://alion.io/job/mujin-robotics-algorithm-engineer-optimization-packing-2","json_url":"https://alion.io/job/mujin-robotics-algorithm-engineer-optimization-packing-2.json","meta":{"generated_at":"2026-10-16T22:17:25Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":3834,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":9678},"rest":"https://alion.io/mcp/rest/get_company?id=9678"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmujin-robotics-algorithm-engineer-optimization-packing-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmujin-robotics-algorithm-engineer-optimization-packing-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmujin-robotics-algorithm-engineer-optimization-packing-2"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/mujin-robotics-algorithm-engineer-optimization-packing-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmujin-robotics-algorithm-engineer-optimization-packing-2"}]}