web-based automation of keyboard/mouse input

We hope to hire a programmer to consolidate/automate a sequence of 4-5 keyboard/mouse operations into one click. It is to load cloud based subtitles into on-demand video streaming (similar to Amazon or Netflix). The following describes a possible workflow: 1. click a link to load an on-demand video from a separate video streaming site 2. upon confirmation of the video loading (may take 5-15 seconds), simulate mouse/keyboard input to display menu 3. choose cloud-based subtitle file from menu 4. load the corresponding subtitle file from cloud A loading-in-progress display (welcome screen with a few ads) must remain on until steps 1 ~ 4 are completed.