{"id":653244,"url":"https://alion.io/job/openai-mechanical-engineer-dynamometer-and-actuator-testing-infrastructure","title":"Mechanical Engineer, Dynamometer and Actuator Testing Infrastructure","company":{"id":2,"name":"OpenAI","domain":"openai.com","url":"https://alion.io/company/openai","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":79,"open_postings":194,"ghost_share":0,"stale_share":0.845,"repost_share":0.01,"time_to_fill_p50_days":52,"computed_at":"2026-11-03T05:54:40Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":225000,"max":318000,"currency":"USD","period":"year","gross":null,"usd_annual":318000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"OpenAI","optional":true},{"name":"SolidWorks","optional":true}],"status":"live","first_seen_at":"2026-09-10T18:35:21Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-11-03T17:56:11Z","board_verified":true,"closed_at":null,"days_open":54,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":54},"description":"About the Team\nOur Robotics team is focused on unlocking general-purpose robotics and pushing towards AGI-level intelligence in dynamic, real-world settings. Working across the entire model stack, we integrate cutting-edge hardware and software to explore a broad range of robotic form factors. We strive to seamlessly blend high-level AI capabilities with the constraints of physical systems to improve peoples’ lives.\nAbout the Role\nWe are seeking a Mechanical Engineer to design, build, and own the mechanical side of our robotic actuator dynamometer and test infrastructure. You will create the test stands, couplings, fixtures, load paths, guarding, and serviceable lab hardware that enable rigorous characterization of robotic actuators.\nThis role combines precision mechanical design with hands-on lab work. You will take robotic actuator test infrastructure from requirements and analysis through CAD, fabrication, assembly, commissioning, and iteration, partnering closely with electrical and software engineers to deliver safe, flexible, high-uptime test cells.\nIn this role, you will\nOwn the mechanical architecture of dynamometer and actuator test cells, including frames, bases, load paths, alignment, guarding, and serviceability.\n\nDesign dynamometer structures, robotic actuator fixtures, load-motor mounts, couplings, shafts, bearings, adapters, and torque-reaction hardware.\n\nTranslate robotic actuator test requirements into robust mechanical systems for torque, speed, thermal, durability, backdrive, efficiency, and failure testing.\n\nPerform first-principles analysis and simulation for stiffness, strength, fatigue, vibration, thermal growth, critical speed, and safety factors.\n\nCreate precise, repeatable alignment strategies that protect test articles, load machines, sensors, and couplings.\n\nDesign modular fixturing that supports rapid changeover across actuator and motor variants without compromising measurement quality.\n\nWork closely with electrical engineers on cable routing, enclosures, cooling, sensor packaging, and test-cell safety interfaces.\n\nWork closely with software and controls engineers to define mechanical limits, safe operating envelopes, and automated-test constraints.\n\nBuild, assemble, debug, and improve test stands in the lab, using measurement and fabrication tools directly.\n\nDevelop guarding, containment, pinch-point mitigation, hard stops, and other mechanical safety systems for high-energy rotating equipment.\n\nManage fabrication partners and vendors for machined parts, weldments, bearings, couplings, sensors, and test-stand components.\n\nEstablish drawings, tolerance stacks, assembly procedures, inspection plans, and preventive-maintenance practices.\n\nUse test observations and failure analysis to continuously improve durability, usability, uptime, and measurement fidelity.\n\nYou might thrive in this role if you\nHave strong intuition for load paths, stiffness, alignment, rotating machinery, and the practical behavior of real hardware.\n\nEnjoy designing fixtures and structures that are precise, robust, safe, and easy for others to use.\n\nAre highly hands-on and comfortable assembling, aligning, instrumenting, and debugging test equipment.\n\nCan move fluidly between first-principles analysis, CAD, vendor collaboration, and lab iteration.\n\nCare about details such as tolerances, runout, resonance, thermal growth, guarding, and serviceability.\n\nAre comfortable working in fast-moving environments with evolving test needs and aggressive technical goals.\n\nTake ownership of the full test-stand lifecycle, from concept through reliable daily operation.\n\nCommunicate clearly across mechanical, electrical, controls, software, safety, and operations teams.\n\nAre motivated by building infrastructure that reveals how advanced robotic actuators really perform.\n\nAre excited to build mechanical test infrastructure that accelerates robotic actuator development.\n\nPreferred qualifications\nPreferred qualifications\n\nBachelor’s or graduate degree in Mechanical Engineering, Robotics, Mechatronics, or a related field.\n\nExperience designing mechanical systems for robotic actuator dynamometers, robotics, automation, rotating machinery, aerospace, automotive, or similar high-performance hardware.\n\nStrong understanding of structures, load paths, shafts, bearings, couplings, fasteners, tolerances, alignment, and vibration.\n\nExperience designing fixtures, test stands, frames, guarding, and precision mechanical interfaces.\n\nProficiency with CAD and drawing release workflows; NX, SolidWorks, Creo, or equivalent experience is welcome.\n\nExperience with structural, thermal, fatigue, or modal analysis and applying results to practical hardware decisions.\n\nHands-on experience with assembly, machining, metrology, alignment, and troubleshooting in a lab or prototype environment.\n\nFamiliarity with mechanical safety for rotating equipment, containment, interlocks, and safe operating envelopes.\n\nAbout OpenAI\nOpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.\nWe are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.\nFor additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement.\nBackground checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.\nTo notify OpenAI that you believe this job posting is non-compliant, please submit a report through this form. No response will be provided to inquiries unrelated to job posting compliance.\nWe are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link.\nOpenAI Global Applicant Privacy Policy\nAt OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. 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