{"id":3974531,"url":"https://alion.io/job/nel-hydrogen-senior-mechanical-design-engineer","title":"Senior Mechanical Design Engineer","company":{"id":717881,"name":"Nel Hydrogen","domain":"nelhydrogen.com","url":"https://alion.io/company/nel-hydrogen","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":null},"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":["Wallingford, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":140000,"currency":"USD","period":"year","gross":null,"usd_annual":140000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"GD&T","optional":false},{"name":"ANSYS","optional":true}],"status":"live","first_seen_at":"2026-11-09T15:43:12Z","employer_posted_date":"2026-11-09","last_verified_at":"2026-11-11T11:07:23Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Do you want to help design the technology powering the green energy transition?\nAt Nel, you’ll work at the forefront of hydrogen innovation - contributing to the design and development of electrochemical systems that power the green energy transition. In this role, you will apply your mechanical engineering expertise to complex component and system design, helping improve performance, reliability, and manufacturability.\nYou will collaborate closely with engineering, manufacturing, and suppliers, taking designs from initial concept through testing and production. This is an opportunity to solve complex technical challenges and make a tangible contribution in a collaborative, multidisciplinary environment.\nYour New Role\nAs a Senior Mechanical Design Engineer, you will be a key contributor to component and complex assembly design from concept through production. Your responsibilities will span design, load distribution and structural analysis, material selection, fluid flow, dimensional tolerancing, and design for manufacturability. The role also involves frequent hands-on prototype assembly and testing.\nYou will prepare detailed documentation and participate in in-depth technical reviews to ensure robust and scalable design solutions.\nYour Responsibilities\nYou will design components and complex assemblies for electrochemical cell stacks, taking solutions from concept through testing and production. Your work will combine mechanical design, engineering analysis, hands-on testing, and close collaboration with manufacturing.\nIn this role, you will:\nPerform engineering calculations and analyses covering mechanical loads, stress and deformation, fluid and gas behavior, pressure drop, flow distribution, and dimensional/tolerance stack-ups\n\nCreate detailed CAD models, assemblies, engineering drawings, and bills of materials, applying GD&T and FEA where appropriate\n\nAssemble and test cell stacks and associated systems, developing test methods, selecting appropriate instrumentation, interpreting results, and validating design assumptions and analytical models\n\nPrepare test plans, technical reports, assembly procedures, and other engineering documentation\n\nIdentify opportunities to reduce cost, improve reliability, and extend the functionality of existing technology\n\nCollaborate with manufacturing and suppliers on manufacturability, volume production, inspection criteria, component evaluation, and technical requirements\n\nSupport non-conforming product disposition, root-cause and failure analysis, and troubleshooting of manufacturing, test, and field issues\n\nThe above statements reflect the principal functions of the position and shall not be construed as a detailed description of all work requirements that may be inherent in the job.\nWhat We Are Looking For\nWe are looking for a hands-on, analytical, and collaborative mechanical engineer who enjoys solving complex technical challenges. You bring strong problem-solving skills and a high level of ownership, and you are comfortable working across design, analysis, testing, and manufacturing in a multidisciplinary environment.\nYou bring with you:\nBachelor’s or Master’s degree in Mechanical Engineering or equivalent, with 8+ years of relevant experience; a related PhD may count toward the experience requirement\n\nStrong proficiency in parametric 3D CAD for complex mechanical assemblies, preferably PTC Creo\n\nDemonstrated experience with GD&T and dimensional/tolerance stack-up analysis\n\nKnowledge of engineering materials, including metals, polymers/elastomers, coatings, surface treatments, and material compatibility\n\nFamiliarity with manufacturing processes including molding, machining, forming, joining, and coating\n\nExperience supporting manufacturing and working with suppliers on technical requirements, manufacturability, component evaluation, and quality issues\n\nExperience planning and executing engineering development activities, with familiarity with safe work practices and hazard analysis\n\nAbility to work effectively in a highly collaborative, multidisciplinary team environment\n\nPreferred Skills\nExperience with FEA (Creo Simulate or ANSYS preferred)\n\nExperience with CFD or other fluid-flow modeling, particularly pressure-drop and flow-distribution analysis (ANSYS Fluent preferred)\n\nExperience with electrochemical systems or pressure/fluid-processing equipment, such as electrolyzers, fuel cells, flow batteries, gas separation, piping systems, or pressure vessels\n\nWhat We Can Offer\nAn opportunity to work in a company in a leading position in the market.\n\nA visible role with many exciting interfaces, internally and externally\n\nThe opportunity to work in a global company that contributes to the green transition.\n\nA dynamic and highly professional working environment consisting of competent and committed colleagues.\n\nCompensation\nThe anticipated annual base salary range for this position is $120,000 - $140,000. Final compensation will be determined based on factors including relevant experience, skills, education, and qualifications.\nBenefits\nNel Hydrogen offers a comprehensive benefits package, including medical, dental, vision, life insurance, disability coverage, and retirement savings benefits, as applicable. Employees may also be eligible to participate in the Company's short-term incentive program. In addition, the Company provides paid vacation, sick leave, and company holidays. Benefits and eligibility are subject to the terms of the applicable plans and programs.\nThe Company has a published Code of Conduct that all employees are expected to follow.\nAbout Nel Hydrogen\nNel Hydrogen is the global leader in on-site hydrogen generation and the largest electrolyser manufacturer in the world. Nel Hydrogen is leading the charge into the new green hydrogen economy.\nIf you are driven by personal initiative combined with loyalty and commitment to your team and the ability to convert complex issues into simple solutions, then we want to talk to you. Join a company that is on the cutting edge of new energy innovations, with an energized, progressive culture.\nVisas\nNel will only employ those who are legally authorized to work in the United States. This is not a position for which sponsorship will be provided.\n\nIndividuals with temporary visas such as E, F-1, H-1, H-2, L, B, J, or TN or who need sponsorship for work authorization now or in the future, are not eligible for hire.\n\nWe are an equal opportunity employer-M/F/Disabled/Veteran and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law. All employment is decided based on qualifications, merit, and business need. Applicants have rights under Federal Employment Laws: FederalEnglish.pdf)\nApplications are reviewed on a rolling basis, so don’t wait to apply! If you have any questions, feel free to reach out to us at .","description_format":"text","description_chars":7011,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":false,"languages":[]},"benefits":["Life insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Hydrogen Energy"],"lifecycle":[{"event":"open","at":"2026-11-09T17:32:15Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":1,"expected_fill_days":56,"reasons":["conf:0","win:early"],"computed_at":"2026-11-11T05:49:22Z"},"pay":{"stated_usd_annual":140000,"is_top_pay":false},"html_url":"https://alion.io/job/nel-hydrogen-senior-mechanical-design-engineer","json_url":"https://alion.io/job/nel-hydrogen-senior-mechanical-design-engineer.json","meta":{"generated_at":"2026-11-11T16:23:01Z","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":30912,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":717881},"rest":"https://alion.io/mcp/rest/get_company?id=717881"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnel-hydrogen-senior-mechanical-design-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fnel-hydrogen-senior-mechanical-design-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fnel-hydrogen-senior-mechanical-design-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/nel-hydrogen-senior-mechanical-design-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnel-hydrogen-senior-mechanical-design-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3974531}},{"tool":"search_jobs","arguments":{"company":"nelhydrogen.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3974531},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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