Engineering optimization: The Optimal System Design presents a practical procedure for using accurate values in designing complex engineering systems. The optimization results are required in multiple desirable attributes, including maximization of expected value and other considerations. The optimization results, such as the minimum possible loss or maximum profit and the robustness of the design, may be helpful to project managers. As an assistant professor at the Optimal System Design Laboratory, I continue researching to improve the optimization algorithm and apply it to solve the optimal design problem in mechanical engineering.