Robuta

https://www.browserstack.com/app-automate/features/parallel-testing?scroll_to=why-parallel-test
Parallel Testing with BrowserStack combines quality at speed and scale. Run across thousands of device-OS combinations seamlessly and get faster results.
boost upon demandconcurrent testingbuildpipelines
https://2019.hydraconf.com/2019/talks/1wyyozh4zrh0da1ctbcynm/
Nikita presents Lin-Check, a tool for testing concurrent data structures in JVM-based languages.
data structureslinchecktestingconcurrent