{"id":57510,"url":"https://alion.io/job/substrate-mechanical-engineer","title":"Mechanical Engineer","company":{"id":18865,"name":"Substrate","domain":"substrate.com","url":"https://alion.io/company/substrate","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":6,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":150000,"max":275000,"currency":"USD","period":"year","gross":null,"usd_annual":275000},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2025-10-28T11:52:48Z","employer_posted_date":"2025-10-28","last_verified_at":"2026-10-16T16:28:57Z","board_verified":true,"closed_at":null,"days_open":353,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":352},"description":"Mechanical Engineer\nSubstrate is addressing one of the most important technological problems facing the United States. At the intersection of advanced manufacturing and cutting-edge physics, we are developing technologies that will reshape the semiconductor industry and strengthen America's technological leadership. We are a team of world-class scientists, engineers, and technical experts building technology for the United States.\nSummary\nAs a Mechanical Engineer, you will design and develop ultra-high vacuum (UHV) systems, precision mechanisms and high speed motion systems. This role requires deep hands-on engineering experience in high-precision manufacturing environments combined with the ability to work autonomously on complex technical challenges. You must be comfortable supporting scientists, engineers, and technical specialists working on parallel projects across multiple locations including external production sites. This is a full-time, in office position.\nResponsibilities\nDesign and analyze UHV-compatible mechanical systems, components, and assemblies for state-of-the-art production facilities across distributed operational environments\n\nDevelop nanometer-precision mechatronic systems for high-speed, high-acceleration applications\n\nConduct structural analysis, vibration and thermal modeling, and FEA stress/strain calculations for high-acceleration mechatronic systems deployed in multiple locations\n\nDesign vacuum-compatible mechanical assemblies and wafer handling robotics supporting autonomous production workstreams\n\nBuild and execute comprehensive testing protocols including UHV validation, precision measurement, and performance characterization for field deployments\n\nCollaborate with electrical engineers and software teams on integrated mechatronic system design across parallel technical contributions\n\nImplement vibration damping techniques and precision isolation systems for distributed production environments\n\nLead technical troubleshooting and root cause analysis for mechanical failures in systems across multiple installation sites\n\nDevelop manufacturing processes and work directly with specialized vendors for precision components and vacuum-compatible materials\n\nSupport external site installations and provide technical guidance for UHV production facility deployments\n\nDrive continuous improvement initiatives for precision mechanical systems across fluid organizational structures\n\nRequired Qualifications\n6+ years hands-on mechanical engineering experience, 3+ years in precision manufacturing or research environments at technology companies\n\nExpert-level CAD experience with complex precision assembly design and UHV-compatible components\n\nDirect experience with finite element analysis (FEA) for stress/strain calculations in high-acceleration mechatronic applications\n\nStrong background in vacuum technology, UHV system design, and vacuum-compatible materials\n\nCross-functional collaboration experience supporting autonomous technical contributors\n\nBuilt precision mechanical systems from concept through production in scaling technology environments\n\nBachelor's degree in Mechanical Engineering or related technical field\n\nPreferred Qualifications\nBasic knowledge or experience with semiconductor wafer handling robotics or equipment\n\nExperience supporting scientists and researchers in autonomous technical environments with fluid organizational structures\n\nExperience with nanometer-precision actuators, motors, and positioning systems\n\nHands-on experience with vibration damping techniques for high-precision mechanical systems\n\nBackground in national labs, semiconductor equipment, or custom vacuum system design companies\n\nSalary Range\n$150,000-$275,000 USD\nSubstrate is an equal opportunity employer. It provides equal employment opportunity to all applicants without regard to race, color, religion, national origin, disability, medical condition, marital status, sex, gender, age, military or veteran status, or any other characteristic protected by applicable federal, state, or local laws.\nSubstrate will provide reasonable accommodations to applicants with disabilities. If you need an accommodation during the hiring process, please let your recruiter know.\n Applicants must be legally authorized to work in the United States. 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