Manufacturing Engineer in Fontana

Position Summary

The Manufacturing Engineer is responsible for driving process optimization, throughput improvement, labor efficiency, and operational scalability within a high SKU mix manufacturing and kitting environment focused primarily on manual assembly operations.

This role serves as the technical and process engineering partner to Production, leading initiatives focused on standard work, material flow, workstation design, cycle time reduction, quality improvement, and operational efficiency. The Manufacturing Engineer plays a critical role in building scalable manufacturing systems capable of supporting both make-to-stock and make-to-order production environments while improving safety, quality, delivery, and cost performance.

Working closely with Production, Planning, Quality, Maintenance, and Supply Chain, this role is responsible for identifying and implementing process improvements that increase throughput, reduce operational waste, improve labor productivity, and support long-term operational growth.

• Analyze and improve manufacturing and kitting processes to increase throughput, efficiency, and operational capacity.
• Identify and eliminate bottlenecks impacting production flow and schedule adherence.
• Lead initiatives focused on cycle time reduction, labor optimization, and process stability.
• Develop scalable manufacturing processes to support high SKU complexity and operational growth.
• Develop, implement, and maintain standardized work instructions and operational procedures.
• Drive operational discipline through visual management systems, process documentation, and workflow controls.
• Conduct time studies, labor analysis, and process observations to optimize staffing and labor utilization.
• Design and improve workstations, assembly layouts, and ergonomic processes to improve operator efficiency and safety.
• Improve material flow across manufacturing and kitting operations to reduce inefficiencies.
• Partner with Production leadership to improve operational KPIs including throughput, labor productivity, OEE, defect rates, and schedule adherence.
• Lead continuous improvement initiatives focused on waste reduction, cost savings, quality improvement, and operational scalability.
• Partner with Quality and Production teams to identify and eliminate process-related defects and inefficiencies.
• Collaborate closely with Production, Maintenance, Planning, and Supply Chain to improve operational performance.

• Manufacturing process optimization and workflow design
• Standard work development and process documentation
• Throughput and labor efficiency improvement initiatives
• Cycle time reduction and line balancing
• Material flow optimization and operational scalability
• Continuous improvement and Lean implementation
• Process-related KPI analysis and operational improvement initiatives

• Throughput improvement, Labor productivity improvement, Cycle time reduction, OEE improvement support, Defect reduction and process consistency, Material flow efficiency, Schedule adherence support, Sustained 5S and Lean process implementation, Cost reduction through process optimization and waste elimination

Manufacturing

Dir. of Manufacturing

Full Time

$105 - 115k

Fontana, CA

Medical, Dental, Vision, 401k match, voluntary Life and insurance, FSA, PTO + 5 sick days, 6 holidays & employee discount.

• 3–7+ years of Manufacturing Engineering or Industrial Engineering experience in high-mix manufacturing or assembly environments.
• Experience supporting manual assembly, kitting, packaging, or fulfillment operations.
• Strong knowledge of Lean manufacturing principles, including 5S, visual management, standard work, and continuous improvement methodologies.
• Experience conducting time studies, labor analysis, and workflow optimization.
• Strong analytical, problem-solving, and process improvement skills.
• Experience improving throughput, labor productivity, and operational performance in fast-paced manufacturing environments.
• Familiarity with ERP systems, production reporting tools, and operational KPI tracking.