{"id":1935683,"url":"https://alion.io/job/sirenopt-staffsenior-mechanical-engineer","title":"Staff/Senior Mechanical Engineer","company":{"id":687018,"name":"SirenOpt","domain":"sirenopt.com","url":"https://alion.io/company/sirenopt","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"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":["San Leandro, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":130000,"max":190000,"currency":"USD","period":"year","gross":null,"usd_annual":190000},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Machine Learning","optional":false},{"name":"SolidWorks","optional":true}],"status":"live","first_seen_at":"2026-10-05T21:56:55Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-10-14T16:10:22Z","board_verified":true,"closed_at":null,"days_open":8,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":8},"description":"About SirenOpt\nSirenOpt helps manufacturers make better, safer, and more reliable micro- and nano-materials. These materials are the building blocks of critical sectors of the global economy such as batteries, computer chips, aircraft components, and power systems. But, surging material demand and growing complexity are pushing production to unprecedented scales and speeds, leaving manufacturers effectively flying blind. Small, undetected variations during production lead to wastage, lower performance, higher costs, and safety risks.\nSirenOpt is changing this by developing a manufacturing intelligence platform that non-destructively probes materials during production, revealing critical internal information without damaging them. Using a novel combination of cold atmospheric plasma, physics-informed machine learning, and predictive analytics, SirenOpt generates unique, real-time material fingerprints that capture material signals not accessible through conventional measurement techniques. These insights give manufacturers unprecedented visibility into how materials behave as they are made.\nWe turn hidden data into actionable intelligence to help manufacturers reduce variability and thus increase yield and performance. The technology can be deployed as a standalone tool or integrated directly into factory production lines. SirenOpt is currently deploying early versions of its platform with some of the largest industrial manufacturers in the world across North America, Europe, and Asia.\nAbout the job\nJob Title: Staff/Senior Mechanical Engineer\nLocation: On-Site (San Leandro, CA)\nJob Type: Full-Time\nRole Overview\nSirenOpt is seeking aStaff or Senior Mechanical Engineer to help us deliver a sensing and software platform that can be integrated inside high-volume thin film manufacturing lines. As an early-stage member of the SirenOpt team, you will be able to make a real impact on next-generation thin film technologies and help build a solid technical foundation upon which a small company can grow. The ideal candidate will learn new concepts quickly and take pride in the quality of their work. We expect that you will be able to apply sound engineering judgment to solve a wide range of technical challenges efficiently and creatively. Some of these problems may lie outside your core areas of expertise, so technical curiosity and a self-starting attitude are critical for success. \nThis role offers an exciting opportunity to be at the forefront of technological innovation, working with cutting-edge systems in a collaborative and dynamic environment. If you are a driven and skilled engineer looking to make a significant impact in advanced manufacturing and the green energy transition, we encourage you to apply. \nWhat You'll Do\nLead the mechanical design and validation of a low-temperature plasma-based metrology sensor platform. \nInterface with a small, cross-functional project team to research, develop, and validate new concepts for low-temperature plasma-based metrology. \nPerform fundamental studies to characterize and understand the sensitivity of the sensor and platform performance. \nClosely interact with clients to iterate on the design based on their feedback, paying close attention to integration speed. \nCreate and maintain technical design documentation (e.g. requirements, 3D and 2D data, assembly documentation, test processes and test reports).\nWhat We're Looking For\nB.S./M.S. in Mechanical Engineering with minimum of 4 years of relevant industry experience. \nExperience autonomously leading independent mechanical design projects, in particular those that involve designing a product that can be integrated into a larger system. \nExperience with design of motion control mechanisms. Ability to properly constrain parts, define datums run through tolerance analysis. Use of GD&T to control those tolerances in drawings. Setting requirements and selection of motors, couplers, stages, gearboxes. \nPrograming of motion controllers is a plus. \nStatic and dynamic stress and strain analysis including vibration testing and analysis. \nSome familiarity with part quality and measurement setup for CMM or OMM inspection. \nExperience with hands-on development of prototypes. \nExperience with initiating and maintaining supplier support. \nExperience with maintaining awareness of customer needs and iterating on designs accordingly. \nExperience with mechanical design for manufacturing lines. \nFamiliarity with standards requirements for high-voltage/low-voltage or gas distribution devices is a plus. \nExperience with performing sensitivity and risk analysis and using the results of those analyses to inform future mechanical designs e.g., quantifying a prototype’s sensitivity to certain environmental disturbances and creating a mechanical design that mitigates the effects of those disturbances. \nPrior exposure to high-precision, high-throughput industrial designs for material handling, metrology, and/or process automation applications are a plus. \nExperience taking designs from initial concept development to product launch. Design for reliability, manufacturing, and service (DfX) are a plus. \nProficiency with use of CAD and PDM tools (e.g., SolidWorks or OnShape) to design parts and assemblies and prepare technical documentation. \nAbility to independently identify and procure parts, manage supplier relationships, and rapidly fabricate medium-fidelity prototypes using 3D printers, metal stock, optical breadboards, etc. is preferred. \nDemonstrated the ability to adapt to new technical challenges and excited to work in a dynamic multi-disciplinary environment. \nExcellent written, verbal and visual communication skills. \nAbility to rapidly create and iterate upon prototypes based on client and team feedback. \nNice to have:\nExperience with metrology equipment and sensors, particularly those used for metrology of advanced materials.\nSome familiarity with thin films, in particular any those related to Lithium- and Zinc-based battery electrodes, Thermal Barrier Coatings for turbine blades, photovoltaics, optical coatings, displays, packaging materials, semiconducting wafers, and/or adhesives.\nBase Pay Range\n$130,000—$190,000 USD\nBenefits\nEquity and Salary compensation depends on experience \nHealth, Dental, Vision plans provided\n401k matching provided\nTime off: 20 days of PTO per year, plus approximately 15 paid US holidays per year","description_format":"text","description_chars":6412,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Manufacturing","Advanced Materials","Electrical & Electronic Engineering"],"lifecycle":[{"event":"open","at":"2026-10-05T23:33:26Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 3","filings_12m":3,"filings_prev_12m":0,"green_card_filings_12m":0,"median_offered_wage_usd":115833,"route":null,"cap_exempt":false,"checked_at":"2026-10-03T21:08:04+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":89,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.894,"p_room":1,"age_days":8,"expected_fill_days":36,"reasons":["conf:3","velocity","win:early"],"computed_at":"2026-10-14T06:34:16Z"},"pay":{"stated_usd_annual":190000,"is_top_pay":true},"html_url":"https://alion.io/job/sirenopt-staffsenior-mechanical-engineer","json_url":"https://alion.io/job/sirenopt-staffsenior-mechanical-engineer.json","meta":{"generated_at":"2026-10-14T16:46:14Z","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":21363,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":687018},"rest":"https://alion.io/mcp/rest/get_company?id=687018"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsirenopt-staffsenior-mechanical-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%2Fsirenopt-staffsenior-mechanical-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%2Fsirenopt-staffsenior-mechanical-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/sirenopt-staffsenior-mechanical-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsirenopt-staffsenior-mechanical-engineer"}]}