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A logistics company runs a two-step job handling process on AWS. The first step quickly receives job submissions from clients, while the second step requires longer processing time to complete each job. Currently, both steps run on separate Amazon EC2 Auto Scaling groups. However, during high-demand hours, the job processing stage falls behind, and there is concern that jobs may be lost due to instance termination during scaling events. A solutions architect needs to design a more scalable and reliable architecture that preserves job data and accommodates fluctuating demand in both stages. Which solution will meet these requirements?