-Optimized the production line staff scheduling in the plant of Irvine, California.-Inquired and reviewed process map, production demand, CA overtime wage requirement and other materials.-Assisted in proposal of cyclic model, including staggered start time and flexible shift length.-Generated over 1,000 shift pattern alternatives via MATLAB, tested the methodology and delivered the results to Irvine management team.

-In the process of x-ray, mismatched information among steps caused under-billing and over-billing.-Observed the process; interviewed personnel; collected relevant data; and conducted root-cause analysis.-Estimated that there were more than $80,000 loss of revenue caused by mismatched information annually.-Reduced the loss of revenue by modifying the order system and triage protocols, designing a reminder in documenting step, and introducing a cross-check mechanism in billing step.