Staff Mechanical Engineer

Staff Mechanical EngineerIf you've owned mechanical design from concept through production on complex power systems and are ready to be the technical authority in the room, this role was built for you.Must-Haves- 10+ years of mechanical design engineering experience - Bachelor's in Mechanical Engineering; M.S. preferred - Working knowledge of pressure systems design, fittings, tubing practices, and material compatibility for gaseous service - Strong fundamentals in structural and thermal analysis including hand calcs and FEA - Proficiency in 3D CAD (SolidWorks, Creo, or NX) and GD&T per ASME Y14.5 - Experience with formal engineering change control (ECO/CCB) and configuration management - Experience leading design reviews and mentoring engineers - Strong written and verbal communication with the ability to critically analyze data, processes, and technical documentsNice to Have- Experience with hydrogen systems, fuel cells, or compressed gas - Familiarity with NFPA 2, UL 2267, or IEC 60079 - Experience with powered industrial trucks (forklifts) or comparable motive applications - Experience with DFMEA, root cause analysis methods (5 Whys, fishbone, 8D), and reliability engineeringAbout the CompanyThis Greenville, SC-based company is on a mission to lead the next generation of industrial power through hydrogen fuel cell technology. They bring together top engineering talent from high-demand industries and green energy experts to develop best-in-class fuel cell power systems for the world's most demanding applications. Headquarters are located minutes from Greenville Spartanburg International Airport.What You'll Do- Lead mechanical design of fuel cell power systems including structural frames, enclosures, thermal management, and hydrogen storage and delivery hardware - Own mechanical work products through the phase-gate process including design reviews, drawing releases, and engineering change control - Develop and maintain 3D CAD models, 2D drawings with GD&T, BOMs, and engineering documentation to release-quality standards - Perform and review structural (FEA), thermal, vibration/shock, tolerance stack-up, and pressure system analysis - Design hydrogen-wetted components and plumbing in compliance with NFPA 2, UL 2267, IEC 62282, and CGA guidance - Lead root cause analysis and corrective action for mechanical failures in test and field units - Define and support DV test plans; participate in design verification and production readiness reviews - Interface with suppliers to drive design improvements - Mentor and technically guide mechanical engineers and designersWhy This RoleThis is not a support role or a seat on a large team where your work gets lost. You will be the mechanical discipline's technical authority on a growing fuel cell program, with direct influence over design decisions, team standards, and product outcomes. If you want ownership and impact in the clean energy space, this is a rare opportunity to have both. Equal Opportunity Employer.