A pharmaceutical research firm needs to run a molecular simulation workload that consists of thousands of independent, short-lived compute tasks submitted in bursts throughout the day. The workload is embarrassingly parallel, requires no direct communication between tasks, and each task reads input from Blob storage and writes results back. Compute demand varies dramatically depending on how many researchers submit jobs. Management wants to minimize idle compute cost while providing a job scheduling and task distribution service so the team does not have to build orchestration logic themselves. Which Azure compute solution best meets these requirements?