{"id":2772363,"url":"https://alion.io/job/liquidpiston-senior-mechanical-simulation-engineer-liquidpiston","title":"Senior Mechanical Simulation Engineer - LiquidPiston","company":{"id":4382700,"name":"LiquidPiston","domain":"liquidpiston.com","url":"https://alion.io/company/liquidpiston","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"JazzHR","truth_index":null},"role":"Robotics","role_family":"Robotics","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Suffield, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":123000,"max_usd":247000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":201},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Agile","optional":false},{"name":"C++","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-10-17T06:50:51Z","employer_posted_date":"2026-10-17","last_verified_at":"2026-10-17T22:55:26Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Senior Simulation Engineer (Bearings & Seals)\nThis role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026.\nAbout LiquidPiston:\nAt LiquidPiston, we’re redefining what’s possible in internal combustion. Our patented X-Engine architecture delivers a lighter, smaller, and more efficient solution compared to traditional engines - enabling new capabilities across aerospace, defense, and clean power generation. We’re not just building engines - we’re pushing the boundaries of innovation in power and propulsion. As part of our team, you’ll work alongside passionate engineers, designers, and researchers committed to solving hard problems and bringing cutting-edge technology to life. If you’re excited about clean-sheet engine design, real R&D challenges, and the opportunity to make a direct impact in a small, agile team - this is your chance to help build something truly revolutionary.\nPosition Overview:\nThe Senior Mechanical Simulation Engineer will lead the design, development, and validation of rotary engine sealing systems and related components. This role involves applying advanced principles of tribology, materials science, and dynamic simulation to optimize seal performance, durability, and reliability under demanding operating conditions. The position requires close collaboration with manufacturing and engineering teams, hands-on problem solving during testing, and the ability to communicate technical findings effectively. The ideal candidate will have deep expertise in high-temperature engine components, strong analytical skills, and a proven track record in independent and collaborative R&D projects.\nResponsibilities:\nRotary Seal Development: Lead the design and refinement of the rotary engine sealing system, including Apex Seals and Face Seals.\nJournal Bearing Design: Contribute to the design, material selection, and optimization of journal bearings. Analyze bearing loads, clearances, oil flow, and housing deflection to ensure hydrodynamic stability and durability.\nTribology and Wear: Apply advanced principles of tribology to minimize friction, optimize lubrication, and predict/mitigate wear on seals and housing surfaces.\nDynamic Simulation: Develop and utilize 1D/3D dynamic models to analyze seal motion, contact pressure, leakage, and flutter under various operating conditions (speed, temperature, load).\nMaterials and Manufacturing: Specify and qualify materials appropriate for high-temperature, high-pressure sliding contact, and collaborate with manufacturing partners on component specifications.\nThermal and Mechanical Analysis (FEA): Utilize Finite Element Analysis (FEA) to assess thermal distortion, structural integrity, and mechanical stress on sealing components and their supporting structures (rotor, housing).\nValidation and Testing: Design, execute, and analyze engine test plans focused on seal performance, durability and friction.\nTroubleshooting: Diagnose and resolve complex sealing-related engine performance issues identified during dyno testing and field trials.\nCommunicate findings clearly and effectively to stakeholders.\n Requirements:Bachelor's degree in Mechanical Engineering, Materials Science, or a related field (Master's preferred).\n5+ years of experience in the design, development, and validation of ICE power cylinder ring packs and cylinder bores.\nProficiency with advanced engineering simulation tools (e.g., FEA such as Ansys)\nProgramming languages: Matlab (MUST), Python/C++\nDeep understanding of high-temperature materials science and their application in severe engine environments.\nExperience with advanced surface treatments or coatings for friction reduction and wear resistance.\nProven ability to work independently and collaboratively in a fast-paced R&D environment.\nBenefits & PerksFlexible PTO: We value work-life balance and encourage time to rest and recharge.\nHealth & Wellness: Comprehensive medical and voluntary dental, and vision coverage - you choose what works best for you.\n Equity Participation: Permanent employees receive RSUs (Restricted Stock Units).\n 401(k) Match: We offer a 401k w/100% matching up to 3% of your salary and then 50% of contributions between 3-5%\nCareer Growth: Ongoing training, mentorship, and learning opportunities to accelerate your growth.\nOur CultureAt LiquidPiston, we embrace challenges, move fast, and celebrate curiosity. Our team thrives on collaboration, creativity, and perseverance. We understand that innovation involves risk-and we’re not afraid to fail as we move forward.\nEqual Opportunity Employer\nLiquidPiston, Inc. is proud to be an Equal Opportunity Employer. Qualified applicants will not be discriminated against, and receive consideration for employment without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, or protected veteran status or disability.\nAll offers of employment at LiquidPiston are contingent upon successful completion of a pre-employment background check and drug screening.","description_format":"text","description_chars":5063,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Restricted stock units"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Drones & UAVs"],"lifecycle":[{"event":"open","at":"2026-10-17T06:50:51Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":36,"reasons":["conf:1","win:early"],"computed_at":"2026-10-18T00:50:13Z"},"pay":null,"html_url":"https://alion.io/job/liquidpiston-senior-mechanical-simulation-engineer-liquidpiston","json_url":"https://alion.io/job/liquidpiston-senior-mechanical-simulation-engineer-liquidpiston.json","meta":{"generated_at":"2026-10-18T00:50:13Z","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":1455,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"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":4382700},"rest":"https://alion.io/mcp/rest/get_company?id=4382700"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fliquidpiston-senior-mechanical-simulation-engineer-liquidpiston"},{"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%2Fliquidpiston-senior-mechanical-simulation-engineer-liquidpiston"},{"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%2Fliquidpiston-senior-mechanical-simulation-engineer-liquidpiston"},{"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/liquidpiston-senior-mechanical-simulation-engineer-liquidpiston\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fliquidpiston-senior-mechanical-simulation-engineer-liquidpiston"}]}