Senior Manufacturing Engineer

Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company’s primary focus is to develop distributed power generators that can operate on various fuel sources to future-proof against an ever-changing energy economy. Job Purpose The Senior Manufacturing Engineer serves as the senior technical authority for assembly process and equipment design within the Industrialization team. This position designs the assembly lines, fixtures, and material flow systems that convert KARNO prototype and development builds into repeatable, scalable production operations — and then systematically removes waste, labor content, and variation from those operations. Working closely with industrialization leadership, design engineering, production, quality, and supply chain, the Senior Manufacturing Engineer owns the most complex assembly value streams end to end: line and station design, fixture and tooling design, material presentation and handling, process qualification, and continuous waste reduction. This position sets the technical standard for how assembly processes are designed and documented at Hyliion, provides mentorship and design review for other manufacturing engineers, and is accountable for measurable improvement in cycle time, first-pass yield, labor content, and ergonomics across the assembly areas. AI at Hyliion At Hyliion, AI is core to how we work. We equip every team member with leading AI tools and count on you to use them — to move faster, solve harder problems, and help us realize the full potential of KARNO technology for the world. Duties and Responsibilities • Assembly Line and Cell Design : Design assembly lines, cells, and workstations for KARNO core, module, and subassembly operations. Establish work sequencing, balance work content to takt, define station layouts and footprints, and design lines that accommodate planned rate increases rather than requiring rebuild to reach them. • Fixture, Jig, and Tooling Design : Design assembly and inspection fixtures, jigs, and tooling from concept through qualification. Own datum and locating strategy, tolerance stack-up and GD&T, error-proofing (poka-yoke) features, and fixture qualification including repeatability and gage R&R studies. Review and approve fixture designs produced by other engineers. • Material Handling and Flow Optimization : Design material presentation and handling systems that put the right part at the point of use in the right orientation — kitting strategy, cart and rack design, sequencing, kanban and pull loops, and travel distance and motion reduction. Partner with Supply Chain and Production Control on line-side stocking, min/max levels, and WIP control. • Waste Reduction in Assembly Operations : Systematically identify and eliminate waste across assembly operations — motion, waiting, rework, overprocessing, transport, and excess inventory. Reduce labor content and cycle time per unit through standard work, work sequencing, changeover reduction, error-proofing, and station design. Quantify the value of each change before implementation and verify the result afterward. • Prototype Development and Production Scaling : Collaborate with design engineering to develop prototype build processes and transition them to efficient, repeatable production-scale operations, including cross-site process transfer between the Milford, OH and Cedar Park, TX facilities. • Process Development and Optimization : Design, develop, implement, and qualify manufacturing processes for engine, generator, electric machine, and precision electromechanical assembly operations, including processes involving high-voltage systems, sealed pressure systems, and additively manufactured components. • Process Doc