I want to get bash autocompletion to work whenever I want to start an executable, e.g. I want to execute

./build/test/auto/ProviderTester(.exe)

but I only want to type

./

and bash should give me completions based on all the executables it finds in the below directory hierarchy. Is this possible? My end goal is to combine this with fzf to give me a list of all executables that I can interactively select.