{"id":1977259,"url":"https://alion.io/job/critical-loop-mechanical-engineer","title":"Mechanical Engineer","company":{"id":673673,"name":"Critical Loop","domain":"criticalloop.com","url":"https://alion.io/company/criticalloop","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Long Beach, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":155000,"currency":"USD","period":"year","gross":null,"usd_annual":155000},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":true,"relocation_package":false,"has_equity":true,"technologies":[{"name":"SolidWorks","optional":true}],"status":"live","first_seen_at":"2026-10-06T20:06:49Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-21T02:51:12Z","board_verified":true,"closed_at":null,"days_open":14,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":14},"description":"About Critical Loop\nCritical Loop is shaping the next generation of energy systems by building the integrated edge grid of the future. Specializing in advanced energy management and battery control systems, Critical Loop empowers businesses and communities to seamlessly unite distributed energy resources for faster, more reliable, and affordable grid access. With deep expertise in grid modernization and a passion for creating resilient, responsive energy solutions, Critical Loop drives innovation at the intersection of technology and energy.\nThe Role\nWe are hiring a Mechanical Engineer to own supplier-built power-distribution products and packaged power-conversion skids from design through production.\nThis is a hands-on, on-site role. You will work alongside electrical engineers, field ops, and fabricators. You will not hand work off. You stay with the problem until it is solved.\nWhat You Will Do\nOwn product design, manufacture, and daily technical work with suppliers.\n\nDesign and release enclosures, skid structures, lifting features, equipment layouts, routing, sealing, grounding, and service access.\n\nKeep CAD, drawings, BOMs, work instructions, inspection, and as-built records aligned.\n\nResolve supplier, fit-up, quality, and schedule issues.\n\nBuild, inspect, and troubleshoot prototypes and production hardware.\n\nTurn R&D designs into repeatable production.\n\nMust-Haves\n4+ years and a mechanical engineering degree or equivalent technical training.\n\nSwitchgear or similar electromechanical power-equipment experience.\n\nExperience taking a product from incomplete requirements to working hardware.\n\nStrong CAD, GD&T, drawing, BOM, and change-control skills.\n\nSupplier and production issue ownership.\n\nHands-on measurement, assembly, inspection, and troubleshooting experience.\n\nAble to work on-site full-time in Long Beach.\n\nNice-to-Haves\nSwitchboards, panelboards, transfer equipment, PCS skids, or packaged power systems.\n\nUL 891, UL 1558, NEMA 250, NFPA 70, UL 9540, or NFPA 855.\n\nSheet metal, weldments, machining, sealing, lifting, or thermal design.\n\nSolidWorks or Onshape, hand calculations, and tolerance stacks.\n\nWork Authorization Critical Loop does not provide visa sponsorship for this role. Please do not apply for this role if at any time (now or in the future) you will need immigration support (i.e H-1B, TN, STEM OPT training plans etc.).\nAt Critical Loop, we're committed to rewarding and supporting our team. Our benefits package includes equity ownership through stock options, giving you a stake in our success, along with comprehensive health coverage (medical, dental, and vision) through an HRA with a generous allowance. We also provide a retirement savings plan and unlimited paid time off so you can recharge and maintain work-life balance.\nCritical Loop is an equal opportunity employer. We're committed to building a diverse team and creating an inclusive workplace where everyone can thrive. 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