Opportunistic job processing

A global-level manager receives a work order referencing at least one executable file and one or more input files. The one or more input files include multiple input resources. A first type of input resource is identified in the one or more input files and a second type of input resource in the one or more input files. The first type of input resource is split into a plurality of first-type input shards. The second type of input resource is split into a plurality of second-type input shards. The plurality of second-type input shards are associated with each of the first-type input shards. For each of the first-type input shards, the global-level manager distributes the first-type input shards, the associated second-type input shards, and the executable file to a single.