{"id":998608,"url":"https://alion.io/job/skydrive-mass-property-engineer","title":"Mass Property Engineer","company":{"id":9737,"name":"SkyDrive","domain":"skydrive.co.jp","url":"https://alion.io/company/skydrive","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":88,"open_postings":41,"ghost_share":0.122,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":170,"computed_at":"2026-10-25T05:49:26Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Nagoya, Japan"],"countries":["JP"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":7000000,"max":12000000,"currency":"JPY","period":"month","gross":null,"usd_annual":925632},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CATIA","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false},{"name":"SolidWorks","optional":false}],"status":"live","first_seen_at":"2026-01-07T11:18:41Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-25T05:24:18Z","board_verified":true,"closed_at":null,"days_open":290,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":290},"description":"Position Summary:\nAs a Mass Properties Engineer, you will be responsible for the weight and balance management of our next-generation eVTOL aircraft. You will track, calculate, and optimize the mass properties (mass, CG, and moments of inertia) throughout the entire product lifecycle-from conceptual design to flight testing and certification. Your work is critical to ensuring the aircraft meets performance targets, safety requirements, and JCAB/FAA certification standards.\nKey Responsibilities:\nWeight & Balance Management: Establish and maintain the aircraft’s mass properties database using PLM software and specialized weight management tools.\nEstimation & Analysis: Perform detailed weight estimations for primary structures, propulsion systems (batteries/motors), and avionics during the design phase.\nCG Control: Monitor Center of Gravity (CG) envelopes and provide design recommendations to engineering teams to ensure the aircraft remains within controllable limits.\nInertia Calculations: Calculate and analyze Moments of Inertia (MOI) and Products of Inertia (POI) for flight dynamics modeling and control law development.\nReporting: Generate Mass Properties Reports (MPR) for design reviews and regulatory compliance (e.g., SAWE RP8).\nVerification: Lead physical weighing activities of components, sub-assemblies, and the fully integrated aircraft to validate digital models.\nOptimization: Identify weight reduction opportunities and lead \"weight sweeps\" to improve the aircraft’s payload capacity and range.\nRequired Qualifications:\n10+ years of experience in mass properties engineering within the aerospace industry.\nProficiency in CAD software (CATIA V5, NX, or SolidWorks, etc.) to extract mass data.\nExperience with weight management software.\nStrong understanding of SAWE Recommended Practices.\nProficiency in Excel/VBA, Python, or MATLAB for data analysis and automation.\nPreferred Qualifications:\nExperience in eVTOL sector\nExperience with composite structures and high-voltage battery systems mass characteristics.\nKnowledge of certification processes.\nExperience in flight test support and actual aircraft weighing operations.\nWhat We Offer:\nStrong communication skills to interact with design owners, systems engineers, manufacturing, and program management.\nHigh rigor, attention to detail, and ownership of integration issues.\nAbility to synthesize complex technical topics concisely. \nAbility to work in fast-paced environments with evolving requirements.\nType of Employment\nPermanent Employee or Contract Employee\nProbationary period: 3 or 6 month\nPlace of Employment\nNagoya Airport Office: Nagoya Airport Terminal Building 2nd floor, Toyoba, Toyoyama-Cho, Nishikasugai, Aichi PrefectureMeasures to Prevent Secondhand Smoke: Smoking Room Provided\n\nScope of Change: Places determined by the Company (including places where telework is performed)\nWorking Hours\nDiscretionary labor systemDiscretionary Labor System: Specialized Class Deemed working hours per day: 10 hours\n\nBasic working hours: Start 9:00 End 18:00（Including 1hour break time）Overtime Work: Available\n\nHolidays\n115 days off per year（Saturday / Sundays / Newyear holidays（12/29～1/3） / Company designated holidays）\nAnnual paid leave\nRefresh leave (Granted after 1, 3, 4, 5 years of service)\nSalary\nEstimated Annual Salary: JPY 7,000,000 - JPY 12,000,000\nMonthly Salary: JPY 584,000 - JPY 1,000,000Includes fixed overtime pay for 45 hours, amounting to JPY 202,181 - JPY 346,205*Additional overtime pay will be provided for hours exceeding the fixed overtime.\n\nTo be determined based on skills, experience, and abilities\nExpenses\nCommuting allowance, business trip allowance, moving allowance, etc.\nRelocation Packages*There are some conditions.\n\nSocial Insurance\nHealth insurance\nEmployee pension (according to Japan standards)\nEmployment insurance\nWorker’s accident compensation insurance\nScope of Work Change\nReassignment may occur to any other work.","description_format":"text","description_chars":3945,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Health insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Drones & UAVs","Aircraft Manufacturing"],"lifecycle":[{"event":"open","at":"2026-09-17T09:20:09Z"}],"visa":[],"liveness":{"score":27,"band":"fade","label":"Fading","p_open":1,"p_active":0.759,"p_room":0.36,"age_days":290,"expected_fill_days":170,"reasons":["conf:0","win:tail","crowd:"],"computed_at":"2026-10-25T05:49:26Z"},"pay":{"stated_usd_annual":925632,"is_top_pay":true},"html_url":"https://alion.io/job/skydrive-mass-property-engineer","json_url":"https://alion.io/job/skydrive-mass-property-engineer.json","meta":{"generated_at":"2026-10-25T08:13:44Z","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":11711,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"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":9737},"rest":"https://alion.io/mcp/rest/get_company?id=9737"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fskydrive-mass-property-engineer"},{"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%2Fskydrive-mass-property-engineer"},{"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%2Fskydrive-mass-property-engineer"},{"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/skydrive-mass-property-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fskydrive-mass-property-engineer"}]}