Optimal cognitive performance in dynamic, high-pressure environments is critical to success in many occupations (e.g., defence, first responders, elite athletes). While it is generally agreed that optimal performance in these settings depends on a wide range of cognitive skills and attributes, their nature and measurement remain under debate. We have partnered with the Australian Defence Science and Technology Group (DSTG) with the aim of bringing this knowledge together into a neuroscience-informed framework. To do this, we will conduct a Research Domain Criteria (RDoC) guided Delphi study to establish expert consensus on the key cognitive constructs that underlie optimal performance in dynamic, high-pressure environments. This knowledge will be critical to informing more sensitive and targeted assessments and training programs in high performance settings.