{"id":3189315,"url":"https://alion.io/job/shield-ai-principal-propulsion-engineer-r6453","title":"Principal Propulsion Engineer (R6453)","company":{"id":50,"name":"Shield AI","domain":"shield.ai","url":"https://alion.io/company/shield-ai","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":73,"open_postings":83,"ghost_share":0,"stale_share":0.867,"repost_share":0,"time_to_fill_p50_days":65,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Aerospace","role_family":"Aerospace","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Seattle, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":260000,"max":400000,"currency":"USD","period":"year","gross":null,"usd_annual":400000},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ANSYS","optional":false},{"name":"GD&T","optional":false},{"name":"Siemens NX","optional":false},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-10-24T01:02:31Z","employer_posted_date":"2026-10-24","last_verified_at":"2026-10-28T06:04:29Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"We are seeking a highly skilled Propulsion Design Engineer to serve as a senior technical contributor within our propulsion team. This role focuses on the design, release, and continual improvement of mechanical components and assemblies for internal combustion and jet propulsion systems on UAV platforms.\nAs a design engineer, you’ll lead complex CAD efforts, enforce rigorous design standards, and collaborate directly with Responsible Engineers, technicians, machinists, and production teams to ensure our propulsion hardware is functional, manufacturable, and testable. You will be the cornerstone of configuration control, interface discipline, and design-for-execution within the team.\nWhat You'll Do\nOwn the design of propulsion components and subsystems from concept through production release\nDevelop and maintain high-quality CAD models, detailed drawings, and assemblies using Siemens NX with fully applied GD&T\nWrite and enforce propulsion design standards and contribute to company-wide design best practices\nCollaborate closely with the machine shop, production team, and technicians to support builds, resolve non-conformances, and drive iterative improvements\nDevelop initial work instructions, assembly guidance, and design documentation for repeatability and scalability\nEnsure designs are practical, manufacturable, and cost-effective, with strong understanding of machining, tolerances, materials, and assembly workflows\nApply engineering analysis and judgment (e.g., hand calcs, GFSSP, ANSYS, FEA, REFPROP) to support sizing, load cases, and design validation\nSupport configuration management, BOM control, and change processes using Teamcenter or equivalent PLM\nParticipate in design reviews, interface control working groups, and root cause investigations\nWhat You'll Bring\nRequired Qualifications:\nBachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related engineering discipline\n7+ years of experience in mechanical design for aerospace, with direct propulsion hardware experience preferred\nExpert-level proficiency in CAD modeling and drawing creation (NX preferred) and application of GD&T\nProven ability to work cross-functionally with production, machine shop personnel, and technicians to solve real-time hardware issues\nFamiliarity with design for manufacturing, including machining processes, surface modeling, stack-up analysis, and fabrication limitations\nHands-on experience developing assembly work instructions, troubleshooting build issues, and implementing hardware-driven design changes\nExperience with configuration management, PLM systems (Teamcenter), and BOM structure\nU.S. Citizenship or ability to comply with ITAR requirements; Ability to obtain Secret clearance\nPreferred Qualifications:\nExperience with GFSSP, REFPROP, ANSYS, FEA, or other mechanical and thermal analysis tools\nAbility to write Python scripts for design automation, data analysis, or simulation support\nProficient in interface control and tolerance stack-up analysis for complex assemblies\nKnowledge of fastening methods and joint design for high-vibration, aerospace environments\nFamiliarity with high-temperature materials and design practices for thermally stressed components\nPrior experience designing hardware for internal combustion, turbine, or rocket propulsion systems, particularly in development or test environments\nM.S. or Ph.D. in Mechanical Engineering, Aerospace Engineering, or a related engineering discipline","description_format":"text","description_chars":3467,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Military Drones","Defense Manufacturing","Defense AI","Drone AI"],"lifecycle":[{"event":"open","at":"2026-10-24T01:06:31Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 2","filings_12m":2,"filings_prev_12m":2,"green_card_filings_12m":0,"median_offered_wage_usd":132500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":4,"expected_fill_days":65,"reasons":["conf:4","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-10-28T05:59:10Z"},"pay":{"stated_usd_annual":400000,"is_top_pay":true},"html_url":"https://alion.io/job/shield-ai-principal-propulsion-engineer-r6453","json_url":"https://alion.io/job/shield-ai-principal-propulsion-engineer-r6453.json","meta":{"generated_at":"2026-10-28T06:49:33Z","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":9166,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"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":50},"rest":"https://alion.io/mcp/rest/get_company?id=50"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fshield-ai-principal-propulsion-engineer-r6453"},{"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%2Fshield-ai-principal-propulsion-engineer-r6453"},{"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%2Fshield-ai-principal-propulsion-engineer-r6453"},{"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/shield-ai-principal-propulsion-engineer-r6453\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fshield-ai-principal-propulsion-engineer-r6453"}]}