Lead Manufacturing Mechanical Engineer

At Jabil (NYSE: JBL), we are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, supply chain, and manufacturing solutions. With 60 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe.

The Senior Manufacturing Mechanical Engineer is responsible for leading and advancing Large Form Assembly (LFA) mechanical manufacturing operations by architecting, sustaining, and optimizing mechanical assembly processes. This role provides senior-level technical leadership in the development of mechanical work instructions, standard operating procedures (SOPs), Design for Assembly (DFA), and Design for Manufacturability (DFM) strategies specific to large, complex mechanical systems. The position serves as the mechanical manufacturing Subject Matter Expert (SME), ensuring structural integrity, production readiness, and process robustness across NPI, ramp, and sustaining phases. This role drives PFMEA development, mechanical risk assessments, tolerance stack-up analysis, and process validation while aligning engineering documentation with manufacturing execution to improve safety, quality, delivery, and cost performance. ESSENTIAL DUTIES AND RESPONSIBILITIES Lead the development, review, and control of mechanical manufacturing documentation including work instructions, assembly drawings, exploded views, torque specifications, SOPs, bill of materials, and process flow documentation. Conduct DFM and DFA reviews during NPI to ensure mechanical designs are optimized for manufacturability, serviceability, ergonomics, and defect prevention. Develop, maintain, and update PFMEA documentation and structured risk assessments for mechanical assembly processes including structural, piping, and pressure-related systems. Define and standardize mechanical assembly methodologies including fastening strategies, torque validation, gasket and seal interfaces, alignment techniques, and workmanship standards. Analyze and manage tolerance stack-ups to prevent fit-up issues, interference conditions, leakage paths, and structural misalignment. Lead layout and installation strategy for mechanical subassemblies such as frames, enclosures, heat exchangers, piping, hoses, brackets, structural supports, and lifting interfaces. Break down complex mechanical drawings into simplified, trainable, production-ready work instructions to support multi-level operator capability. Develop and optimize mechanical build sequences to improve safety, ergonomics, takt time alignment, and overall labor efficiency (OLE). Partner with Industrial, Electrical, Controls, and Test Engineering to improve overall assembly flow, station balance, and cross-functional defect reduction. Provide advanced hands-on troubleshooting support for mechanical build issues including fit-up challenges, tolerance stack-ups, structural stress points, leak sources, vibration concerns, and rework drivers. Support equipment commissioning, FAT/SAT, and system acceptance activities related to mechanical integration and manufacturing readiness. Ensure controlled documentation and ECN discipline throughout NPI, ramp, and sustaining production phases. Lead continuous improvement initiatives focused on structural reliability, quality, safety, cost reduction, and mechanical process standardization. Identify and implement opportunities to improve mechanical robustness, reduce warranty risk, and lower total cost of ownership. Serve as escalation point and technical mentor for junior engineers and technicians within mechanical manufacturing operations. Maintain accurate and controlled mechanical documentation throughout NPI, production ramps, and sustaining